[{"data":1,"prerenderedAt":654},["ShallowReactive",2],{"schematic:lm386-bass-boost-amplifier:en":3},{"schematic":4,"title":19,"shortDescription":22,"proseSource":613,"localizationFallbackIssues":614,"related":615,"confirmations":614},{"schemaVersion":5,"governance":6,"slug":18,"title":19,"cluster":20,"tier":21,"shortDescription":22,"deepTechnicalOverview":23,"theoryOfOperation":24,"keySpecifications":25,"applications":50,"gotchas":55,"formulas":74,"bom":128,"interactiveElements":187,"circuitJson":246,"svg":608,"relatedSchematicSlugs":609,"relatedComponentSlugs":611,"relatedBoardSlugs":612},"1.0",{"publication":7,"verification":10,"provenance":15},{"status":8,"publishedDate":9},"published","2026-10-25",{"status":11,"verifiedDate":9,"verifiedBy":12,"checklist":13},"verified","Codex: documentary verification and CAD redraw against TI SNAS545D Figure 9-9; owner publication authorization; no bench test, independent second review or native-speaker sign-off",{"schema":14,"technicalFacts":14,"relationships":14,"sources":14},true,{"sourceUrls":16},[17],"https:\u002F\u002Fwww.ti.com\u002Flit\u002Fds\u002Fsymlink\u002Flm386.pdf","lm386-bass-boost-amplifier","LM386 Audio Amplifier with Bass Boost","audio_amplifiers","Tier 1","TI Figure 9-9 redrawn as an editable LM386 bass-boost amplifier: a 10 kΩ and 33 nF feedback branch, volume control and an 8 Ω speaker powered from a 9 V battery.","This circuit follows Figure 9-9 of the Texas Instruments LM386 datasheet SNAS545D. A series 10 kΩ resistor and 33 nF capacitor connects pin 1 to the amplifier output at pin 5, before the output coupling capacitor. It changes the feedback with frequency, giving bass more prominence relative to the midrange and treble. Pin 8 stays open: this is not the separate gain-200 circuit. The 9 V battery and 8 Ω speaker are explicit choices within Table 9-5. The optional, unvalued BYPASS capacitor shown dashed by TI is omitted. TI recommends local supply decoupling but does not specify its value here. Application performance must be checked in the final build.","### 1. Input and volume\nRV1 is a 10 kΩ potentiometer between VIN and ground. Its wiper feeds pin 3; pin 2 is grounded. Start with the volume down and keep the signal at pin 3 inside the ±0.4 V input rating.\n\n### 2. Frequency-shaped feedback\nR2 (10 kΩ) and C3 (0.033 µF) form a series path from pin 1 to pin 5. TI describes this path as paralleling the internal 15 kΩ feedback resistor. At low frequencies C3 impedes the added path; at higher frequencies it conducts more feedback, reducing gain relative to the bass region. This is a relative tone contour, not extra output-power capacity.\n\n### 3. Pin 8 and stability\nPin 8 is open. TI specifies 10 kΩ as the lowest feedback resistance for good stable operation in this configuration. The separate capacitor-between-pins-1-and-8 modification for gain 200 is not fitted. The component RC benchmark is about 482 Hz; this is not the complete amplifier response or a measured bass cutoff.\n\n### 4. Output coupling\nPin 5 biases to approximately half the supply, about 4.5 V at 9 V. C1 (250 µF), positive towards pin 5, blocks that DC from LS1. With an ideal 8 Ω load its calculated high-pass corner is about 80 Hz, so very low bass is still attenuated.\n\n### 5. Output RC network\nC2 (0.05 µF) and R1 (10 Ω) form the separate series output-to-ground network drawn by TI. Keep it distinct from the pin-1 feedback branch; R2 returns to pin 5 before C1, not to the speaker terminal after C1.\n\n### 6. Supply and bypass\nThe drawing uses a 9 V battery; Table 9-5 gives 5 V to 12 V and loads from 4 Ω to 32 Ω. Pin 7 is left open, omitting the optional dashed BYPASS capacitor. Add local pin-6-to-ground decoupling and follow TI layout guidance; the reference does not assign its capacitance.",[26,29,32,35,38,41,44,47],{"label":27,"value":28},"Operating Supply Voltage","9 V battery as drawn; 5 V to 12 V design range (TI Table 9-5)",{"label":30,"value":31},"Voltage Gain","Frequency-shaped by R2\u002FC3; pin 8 open; no gain-200 bypass (TI Figure 9-9)",{"label":33,"value":34},"Load","8 Ω speaker as drawn; design range 4 Ω to 32 Ω (TI Table 9-5)",{"label":36,"value":37},"Output Power","325 mW typical, 250 mW minimum at VS = 6 V, RL = 8 Ω, THD = 10% (LM386N-1); the datasheet does not specify LM386N-1 output power at 9 V",{"label":39,"value":40},"Quiescent Current","4 mA typical, 8 mA maximum at VS = 6 V, VIN = 0 (TI §6.5)",{"label":42,"value":43},"Input Voltage at Pin 3","−0.4 V to +0.4 V (absolute maximum and recommended range)",{"label":45,"value":46},"Low-Frequency Corner","≈ 80 Hz, calculated from C1 = 250 µF and an 8 Ω load; not measured",{"label":48,"value":49},"Bass Feedback Branch","R2 = 10 kΩ, C3 = 0.033 µF (33 nF), in series between pins 1 and 5",[51,52,53,54],"AM-FM radio amplifiers","Intercoms","TV sound systems","Battery-powered speaker output for portable audio projects",[56,61,66,70],{"title":57,"trap":58,"solution":59,"severity":60},"Overdriving the Input","The absolute maximum input voltage is ±0.4 V. A headphone or line-level signal can be larger; fed straight to pin 3 it can exceed that rating, and the output clips well before the input reaches it.","Keep RV1 between the source and pin 3 as drawn and start with the volume turned down; keep the signal at pin 3 within ±0.4 V.","critical",{"title":62,"trap":63,"solution":64,"severity":65},"Missing Supply Decoupling","Figure 9-9 draws no capacitor on the supply, but TI recommends one close to pin 6. Without it, long battery leads and supply ripple reach the output as hum or instability.","Add a capacitor from pin 6 to GND right next to the IC (the datasheet does not give a value) and keep the speaker leads short (TI §10, §11.1).","warning",{"title":67,"trap":68,"solution":69,"severity":65},"C1 Fitted Backwards","Pin 5 sits at about half the supply, so C1 has a steady DC voltage across it. An electrolytic fitted the wrong way round is reverse-biased.","Fit C1 with its positive terminal towards pin 5 and the negative terminal towards the speaker, and use a voltage rating above the supply voltage.",{"title":71,"trap":72,"solution":73,"severity":65},"Feedback Resistance and Pin 8","A smaller R2 with pin 8 open can reduce the closed-loop gain below the range for which the LM386 is compensated. TI gives 10 kΩ as the minimum for good stable operation in this arrangement.","Keep R2 at 10 kΩ or above with pin 8 open, as in Figure 9-9. Connect the RC branch to pin 5 before C1. Do not combine it with a gain-200 modification without redesign and validation.",[75,95,114],{"name":76,"latexOrText":77,"description":78,"variables":79},"Feedback RC Benchmark","f_{RC}=\\frac{1}{2\\pi R_2 C_3}","Calculated frequency at which the magnitude of C3 reactance equals R2: about 482 Hz for 10 kΩ and 33 nF. This is a component benchmark, not the full bass-response cutoff.",[80,85,90],{"symbol":81,"name":82,"typicalValue":83,"unit":84},"R_2","Feedback resistor","10","kΩ",{"symbol":86,"name":87,"typicalValue":88,"unit":89},"C_3","Feedback capacitor","33","nF",{"symbol":91,"name":92,"typicalValue":93,"unit":94},"f_{RC}","RC benchmark (calculated)","482","Hz",{"name":96,"latexOrText":97,"description":98,"variables":99},"Output Coupling Corner Frequency","f_c = \\frac{1}{2\\pi R_L C_1}","Frequency below which C1 and the speaker attenuate the signal (−3 dB), treating the speaker as a pure 8 Ω resistance.",[100,105,110],{"symbol":101,"name":102,"typicalValue":103,"unit":104},"R_L","Speaker impedance","8","Ω",{"symbol":106,"name":107,"typicalValue":108,"unit":109},"C_1","Output coupling capacitor","250","µF",{"symbol":111,"name":112,"typicalValue":113,"unit":94},"f_c","Corner frequency (calculated)","80",{"name":115,"latexOrText":116,"description":117,"variables":118},"Output Bias Voltage","V_{OUT(DC)} \\approx \\frac{V_S}{2}","The output biases itself to about half the supply voltage; C1 blocks this DC level from the speaker.",[119,124],{"symbol":120,"name":121,"typicalValue":122,"unit":123},"V_S","Supply voltage","9","V",{"symbol":125,"name":126,"typicalValue":127,"unit":123},"V_{OUT(DC)}","Output bias voltage","4.5",[129,138,144,151,158,163,169,176,181],{"refDes":130,"componentName":131,"value":132,"package":133,"quantity":134,"componentSlug":135,"role":136,"notes":137},"U1","Low-Voltage Audio Power Amplifier","LM386N-1","PDIP-8",1,"lm386","Audio power amplifier with frequency-shaped feedback","TI LM386N-1\u002FNOPB. LM386N-3 and LM386N-4 share the pinout but have different supply and output-power ratings.",{"refDes":139,"componentName":140,"value":141,"package":142,"quantity":134,"role":143},"RV1","Rotary Potentiometer","10kΩ","Panel \u002F PCB mount","Volume control and input attenuator",{"refDes":145,"componentName":146,"value":147,"package":148,"quantity":134,"role":149,"notes":150},"C1","Aluminium Electrolytic Capacitor","250µF","Radial","Output coupling to the speaker","Datasheet value. 220 µF is the nearest common value and moves the calculated corner to about 90 Hz. Voltage rating above the supply; + towards pin 5.",{"refDes":152,"componentName":153,"value":154,"package":155,"quantity":134,"role":156,"notes":157},"C2","Ceramic or Film Capacitor","0.05µF","Radial \u002F 0805","Output RC network","Datasheet value; 47 nF is the nearest common value.",{"refDes":159,"componentName":160,"value":161,"package":162,"quantity":134,"role":156},"R1","Resistor 1\u002F4 W","10Ω","Axial \u002F 0805",{"refDes":164,"componentName":165,"value":166,"package":167,"quantity":134,"role":33,"notes":168},"LS1","Loudspeaker","8Ω","Wired","4 Ω to 32 Ω per TI Table 9-5.",{"refDes":170,"componentName":171,"value":172,"package":173,"quantity":134,"role":174,"notes":175},"BT1","9 V Battery","9V","PP3 \u002F 6LR61","Supply","Any supply from 5 V to 12 V (TI Table 9-5).",{"refDes":177,"componentName":178,"value":141,"package":162,"quantity":134,"role":179,"notes":180},"R2","Feedback Resistor","Series bass-feedback branch","TI Figure 9-9 value. With pin 8 open, TI specifies 10 kΩ as the minimum for good stable operation.",{"refDes":182,"componentName":183,"value":184,"package":155,"quantity":134,"role":185,"notes":186},"C3","Feedback Capacitor","0.033µF","Frequency shaping in series with R2","33 nF, the 0.033 µF of TI Figure 9-9. Non-polarized.",{"BT1":188,"RV1":194,"U1":201,"C1":209,"C2":218,"R1":225,"LS1":231,"R2":237,"C3":241},{"refDes":170,"name":171,"value":172,"role":174,"description":189,"footprint":190,"specs":191},"Supplies VS at pin 6. 9 V lies inside the LM386N-1 operating range of 4 V to 12 V and the 5 V to 12 V of the datasheet design table.","PP3 \u002F 6LR61 battery clip",{"Nominal Voltage":192,"LM386N-1 Supply Range":193},"9 V","4 V – 12 V (TI §6.5)",{"refDes":139,"name":195,"value":141,"role":196,"description":197,"footprint":198,"specs":199},"Volume Potentiometer","Input attenuator","Connected from the input to ground; its wiper sets how much of the input signal reaches pin 3, and therefore the volume. It also keeps pin 3 inside its ±0.4 V input range.","Rotary, panel or PCB mount",{"Resistance":200},"10 kΩ (TI Figure 9-9)",{"refDes":130,"name":202,"value":132,"role":136,"description":203,"componentSlug":135,"footprint":133,"specs":204},"LM386 Audio Power Amplifier","R2 and C3 connect pin 1 to pin 5 and shape the feedback with frequency. Pin 8 stays open; pin 2 is grounded. Pin 7 is open, omitting the optional BYPASS capacitor. The output still biases to approximately half the supply.",{"Voltage Gain":205,"Quiescent Current":206,"Output Power":207,"Input Voltage":208},"Frequency-shaped by R2\u002FC3; pin 8 open","4 mA typical, 8 mA maximum at VS = 6 V (TI §6.5)","325 mW typical at VS = 6 V, RL = 8 Ω, THD = 10% (LM386N-1)","−0.4 V to +0.4 V",{"refDes":145,"name":210,"value":147,"role":211,"description":212,"footprint":213,"specs":214},"Output Coupling Capacitor","Blocks the DC output bias from the speaker","The output sits at about half the supply voltage. C1 passes the audio signal to the speaker while blocking that DC level; with the 8 Ω speaker it sets a calculated low-frequency corner of about 80 Hz. Its positive terminal faces pin 5.","Radial electrolytic",{"Capacitance":215,"Polarity":216,"Voltage Rating":217},"250 µF (TI Figure 9-9)","+ to pin 5","Above the 9 V supply",{"refDes":152,"name":219,"value":154,"role":220,"description":221,"footprint":222,"specs":223},"Output Network Capacitor","Series RC network at the output","With R1 forms the series RC network from pin 5 to ground that TI uses on the output in most of the datasheet's application circuits.","Ceramic or film",{"Capacitance":224},"0.05 µF (50 nF) (TI Figure 9-9)",{"refDes":159,"name":226,"value":161,"role":220,"description":227,"footprint":228,"specs":229},"Output Network Resistor","With C2 forms the series RC network from pin 5 to ground. At high frequencies it gives the output a load of about 10 Ω.","Axial 1\u002F4 W",{"Resistance":230},"10 Ω (TI Figure 9-9)",{"refDes":164,"name":165,"value":166,"role":33,"description":232,"footprint":233,"specs":234},"An 8 Ω speaker between C1 and ground. The datasheet design tables give 4 Ω to 32 Ω loads; the recommended minimum speaker impedance is 4 Ω.","Wired speaker",{"Impedance":235,"Allowed Range":236},"8 Ω","4 Ω – 32 Ω (TI Table 9-5)",{"refDes":177,"name":238,"value":141,"role":179,"description":239,"footprint":162,"specs":240},"Bass Feedback Resistor","In series with C3 between pins 1 and 5. TI specifies 10 kΩ as the minimum for good stable operation with pin 8 open.",{"Resistance":200},{"refDes":182,"name":242,"value":184,"role":185,"description":243,"footprint":155,"specs":244},"Bass Feedback Capacitor","33 nF non-polarized capacitor in the feedback path. It reduces the added feedback at low frequencies, giving bass more prominence relative to higher frequencies.",{"Capacitance":245},"0.033 µF (33 nF) (TI Figure 9-9)",{"schemaVersion":247,"id":248,"meta":249,"components":255,"nets":360,"junctions":438,"netLabels":448,"wires":449},"1.5","lm386_bass_boost",{"title":19,"locale":250,"grid":251,"source":252},"en",20,{"type":253,"ref":254,"url":17},"datasheet","Texas Instruments LM386 Low Voltage Audio Power Amplifier, SNAS545D, revised August 2023: Figure 9-9 LM386 with Bass Boost and Table 9-5 (p. 15), §9.2.1.2.1 Gain Control (p. 10), §6.5, §10 and §11.1. Adaptations: 9 V battery and 8 Ω speaker within Table 9-5; optional unvalued dashed pin-7 BYPASS capacitor omitted. Original drawing by CircuitBase from the cited topology.",[256,263,271,280,288,294,299,307,313,319,325,330,337,344,349,355],{"id":257,"symbolId":258,"refDes":170,"position":259,"rotation":261,"properties":262},"comp-bt1","battery.cell",{"x":251,"y":260},40,0,{"value":172},{"id":264,"symbolId":265,"refDes":266,"position":267,"rotation":261,"properties":269},"comp-gnd-bt1","gnd.port","P_GND_BT1",{"x":251,"y":268},140,{"value":270},"GND",{"id":272,"symbolId":273,"refDes":274,"position":275,"rotation":261,"properties":278},"comp-j1","port.input","J1",{"x":276,"y":277},100,160,{"value":279},"VIN",{"id":281,"symbolId":282,"refDes":139,"position":283,"rotation":286,"properties":287},"comp-rv1","potentiometer.iec",{"x":284,"y":285},200,260,270,{"value":141},{"id":289,"symbolId":265,"refDes":290,"position":291,"rotation":261,"properties":293},"comp-gnd-rv1","P_GND_RV1",{"x":284,"y":292},280,{"value":270},{"id":295,"symbolId":265,"refDes":296,"position":297,"rotation":261,"properties":298},"comp-gnd-u1-2","P_GND_IN",{"x":285,"y":277},{"value":270},{"id":300,"symbolId":301,"refDes":130,"position":302,"rotation":261,"properties":304},"comp-u1","ic.audio.lm386",{"x":303,"y":276},300,{"value":132,"package":133,"manufacturer":305,"mpn":306},"Texas Instruments","LM386N-1\u002FNOPB",{"id":308,"symbolId":265,"refDes":309,"position":310,"rotation":261,"properties":312},"comp-gnd-u1-4","P_GND_U1",{"x":311,"y":292},320,{"value":270},{"id":314,"symbolId":315,"refDes":145,"position":316,"rotation":261,"properties":318},"comp-c1","capacitor.electrolytic",{"x":317,"y":277},700,{"value":147},{"id":320,"symbolId":321,"refDes":152,"position":322,"rotation":323,"properties":324},"comp-c2","capacitor.ceramic",{"x":317,"y":284},90,{"value":154},{"id":326,"symbolId":327,"refDes":159,"position":328,"rotation":323,"properties":329},"comp-r1","resistor.iec",{"x":317,"y":303},{"value":161},{"id":331,"symbolId":265,"refDes":332,"position":333,"rotation":261,"properties":336},"comp-gnd-r1","P_GND_R1",{"x":334,"y":335},660,400,{"value":270},{"id":338,"symbolId":339,"refDes":164,"position":340,"rotation":261,"properties":343},"comp-ls1","speaker.iec",{"x":341,"y":342},800,220,{"value":166},{"id":345,"symbolId":265,"refDes":346,"position":347,"rotation":261,"properties":348},"comp-gnd-ls1","P_GND_LS1",{"x":341,"y":311},{"value":270},{"id":350,"symbolId":327,"refDes":177,"position":351,"rotation":261,"properties":354},"comp-r2",{"x":352,"y":353},380,-100,{"value":141},{"id":356,"symbolId":321,"refDes":182,"position":357,"rotation":261,"properties":359},"comp-c3",{"x":358,"y":353},500,{"value":184},[361,370,391,398,405,414,420,426,432],{"id":362,"name":363,"class":364,"pins":365},"net_vs","VS","power",[366,368],{"component":257,"pin":367},"+",{"component":300,"pin":369},"6",{"id":371,"name":270,"class":372,"pins":373},"net_gnd","ground",[374,376,378,380,381,383,384,386,387,388,389,390],{"component":257,"pin":375},"-",{"component":264,"pin":377},"in",{"component":281,"pin":379},"1",{"component":289,"pin":377},{"component":300,"pin":382},"2",{"component":295,"pin":377},{"component":300,"pin":385},"4",{"component":308,"pin":377},{"component":326,"pin":382},{"component":331,"pin":377},{"component":338,"pin":382},{"component":345,"pin":377},{"id":392,"name":279,"class":393,"pins":394},"net_vin","signal",[395,397],{"component":272,"pin":396},"out",{"component":281,"pin":382},{"id":399,"name":400,"class":393,"pins":401},"net_in_pos","IN+",[402,404],{"component":281,"pin":403},"3",{"component":300,"pin":403},{"id":406,"name":407,"class":393,"pins":408},"net_vout","VOUT",[409,411,412,413],{"component":300,"pin":410},"5",{"component":314,"pin":379},{"component":320,"pin":379},{"component":356,"pin":382},{"id":415,"name":416,"class":393,"pins":417},"net_spk","SPK",[418,419],{"component":314,"pin":382},{"component":338,"pin":379},{"id":421,"name":422,"class":393,"pins":423},"net_zobel","ZOBEL",[424,425],{"component":320,"pin":382},{"component":326,"pin":379},{"id":427,"name":428,"class":393,"pins":429},"net_gain_feedback","GAIN_FEEDBACK",[430,431],{"component":300,"pin":379},{"component":350,"pin":379},{"id":433,"name":434,"class":393,"pins":435},"net_bass_rc","BASS_RC",[436,437],{"component":350,"pin":382},{"component":356,"pin":379},[439,444],{"id":440,"netId":406,"position":441},"j-vout",{"x":442,"y":443},480,180,{"id":445,"netId":406,"position":446},"j-feedback",{"x":447,"y":443},620,[],[450,460,469,477,485,493,502,510,519,530,538,547,555,563,571,580,589,598],{"id":451,"netId":362,"endpoints":452,"path":455},"w-vs",[453,454],{"component":257,"pin":367},{"component":300,"pin":369},[456,457,459],{"x":260,"y":260},{"x":458,"y":260},340,{"x":458,"y":276},{"id":461,"netId":371,"endpoints":462,"path":465},"w-bt1-gnd",[463,464],{"component":257,"pin":375},{"component":264,"pin":377},[466,468],{"x":260,"y":467},120,{"x":260,"y":268},{"id":470,"netId":392,"endpoints":471,"path":474},"w-vin",[472,473],{"component":272,"pin":396},{"component":281,"pin":382},[475,476],{"x":277,"y":443},{"x":342,"y":443},{"id":478,"netId":371,"endpoints":479,"path":482},"w-rv1-gnd",[480,481],{"component":281,"pin":379},{"component":289,"pin":377},[483,484],{"x":342,"y":285},{"x":342,"y":292},{"id":486,"netId":399,"endpoints":487,"path":490},"w-wiper",[488,489],{"component":281,"pin":403},{"component":300,"pin":403},[491,492],{"x":285,"y":342},{"x":303,"y":342},{"id":494,"netId":371,"endpoints":495,"path":498},"w-u1-2-gnd",[496,497],{"component":300,"pin":382},{"component":295,"pin":377},[499,500,501],{"x":303,"y":268},{"x":292,"y":268},{"x":292,"y":277},{"id":503,"netId":371,"endpoints":504,"path":507},"w-u1-4-gnd",[505,506],{"component":300,"pin":385},{"component":308,"pin":377},[508,509],{"x":458,"y":285},{"x":458,"y":292},{"id":511,"netId":406,"endpoints":512,"path":515},"w-out-j",[513,514],{"component":300,"pin":410},{"junctionId":440},[516,518],{"x":517,"y":443},440,{"x":442,"y":443},{"id":520,"netId":415,"endpoints":521,"path":524},"w-c1-ls1",[522,523],{"component":314,"pin":382},{"component":338,"pin":379},[525,527,529],{"x":526,"y":443},780,{"x":528,"y":443},820,{"x":528,"y":342},{"id":531,"netId":371,"endpoints":532,"path":535},"w-ls1-gnd",[533,534],{"component":338,"pin":382},{"component":345,"pin":377},[536,537],{"x":528,"y":303},{"x":528,"y":311},{"id":539,"netId":421,"endpoints":540,"path":543},"w-c2-r1",[541,542],{"component":320,"pin":382},{"component":326,"pin":379},[544,546],{"x":545,"y":292},680,{"x":545,"y":303},{"id":548,"netId":371,"endpoints":549,"path":552},"w-r1-gnd",[550,551],{"component":326,"pin":382},{"component":331,"pin":377},[553,554],{"x":545,"y":352},{"x":545,"y":335},{"id":556,"netId":406,"endpoints":557,"path":560},"w-j-j-feedback",[558,559],{"junctionId":440},{"junctionId":445},[561,562],{"x":442,"y":443},{"x":447,"y":443},{"id":564,"netId":406,"endpoints":565,"path":568},"w-j-feedback-c1",[566,567],{"junctionId":445},{"component":314,"pin":379},[569,570],{"x":447,"y":443},{"x":317,"y":443},{"id":572,"netId":406,"endpoints":573,"path":576},"w-j-c2",[574,575],{"junctionId":440},{"component":320,"pin":379},[577,578,579],{"x":442,"y":443},{"x":442,"y":284},{"x":545,"y":284},{"id":581,"netId":427,"endpoints":582,"path":585},"w-gain-r2",[583,584],{"component":300,"pin":379},{"component":350,"pin":379},[586,587],{"x":352,"y":276},{"x":352,"y":588},-80,{"id":590,"netId":433,"endpoints":591,"path":594},"w-r2-c3",[592,593],{"component":350,"pin":382},{"component":356,"pin":379},[595,597],{"x":596,"y":588},460,{"x":358,"y":588},{"id":599,"netId":406,"endpoints":600,"path":603},"w-c3-feedback",[601,602],{"component":356,"pin":382},{"junctionId":445},[604,606,607],{"x":605,"y":588},580,{"x":447,"y":588},{"x":447,"y":443},"\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" viewBox=\"5 -136.39999999999998 891.15 605\" width=\"891.15\" height=\"605\" role=\"img\">\u003Ctitle>LM386 Audio Amplifier with Bass Boost\u003C\u002Ftitle>\u003Cdesc>Exported from CircuitBase\u003C\u002Fdesc>\u003Cpolyline data-kind=\"wire\" points=\"40,40 340,40 340,100\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"40,120 40,140\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"160,180 220,180\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"220,260 220,280\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"260,220 300,220\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"300,140 280,140 280,160\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"340,260 340,280\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"440,180 480,180\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"780,180 820,180 820,220\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"820,300 820,320\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"680,280 680,300\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"680,380 680,400\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"480,180 620,180\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"620,180 700,180\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"480,180 480,200 680,200\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"380,100 380,-80\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"460,-80 500,-80\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cpolyline data-kind=\"wire\" points=\"580,-80 620,-80 620,180\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linejoin=\"round\" stroke-linecap=\"round\"\u002F>\u003Cg class=\"comp-interactive\" data-refdes=\"BT1\" id=\"elem-bt1\" cursor=\"pointer\">\u003Cg transform=\"translate(20,40) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"48\" height=\"88\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"24\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"24\" x2=\"34\" y2=\"24\" fill=\"none\"\u002F>\u003Cline x1=\"12\" y1=\"42\" x2=\"28\" y2=\"42\" fill=\"none\"\u002F>\u003Cline x1=\"20\" y1=\"42\" x2=\"20\" y2=\"80\" fill=\"none\"\u002F>\u003Ctext x=\"34\" y=\"18\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">+\u003C\u002Ftext>\u003Ctext x=\"34\" y=\"48\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">-\u003C\u002Ftext>\u003C\u002Fg>\u003Ctext x=\"64\" y=\"69.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">BT1\u003C\u002Ftext>\u003Ctext x=\"64\" y=\"87.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">9V\u003C\u002Ftext>\u003C\u002Fg>\u003Cg transform=\"translate(20,140) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg transform=\"translate(100,160) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cpolygon points=\"12,8 46,8 60,20 46,32 12,32\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"RV1\" id=\"elem-rv1\" cursor=\"pointer\">\u003Cg transform=\"translate(200,260) rotate(270)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"68\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"20\" y2=\"20\" fill=\"none\"\u002F>\u003Cline x1=\"60\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003Crect x=\"20\" y=\"12\" width=\"40\" height=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"40\" y1=\"60\" x2=\"40\" y2=\"34\" fill=\"none\"\u002F>\u003Cpolygon points=\"36,34 40,28 44,34\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"202\" y=\"216.4\" text-anchor=\"end\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">RV1\u003C\u002Ftext>\u003Ctext x=\"202\" y=\"234.4\" text-anchor=\"end\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">10kΩ\u003C\u002Ftext>\u003C\u002Fg>\u003Cg transform=\"translate(200,280) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg transform=\"translate(260,160) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"U1\" id=\"elem-u1\" cursor=\"pointer\">\u003Cg transform=\"translate(300,100) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"148\" height=\"168\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cpolygon points=\"20,20 120,80 20,140\" fill=\"none\"\u002F>\u003Cline x1=\"0\" y1=\"40\" x2=\"20\" y2=\"40\" fill=\"none\"\u002F>\u003Cline x1=\"0\" y1=\"120\" x2=\"20\" y2=\"120\" fill=\"none\"\u002F>\u003Cline x1=\"120\" y1=\"80\" x2=\"140\" y2=\"80\" fill=\"none\"\u002F>\u003Cline x1=\"40\" y1=\"0\" x2=\"40\" y2=\"32\" fill=\"none\"\u002F>\u003Cline x1=\"80\" y1=\"0\" x2=\"80\" y2=\"56\" fill=\"none\"\u002F>\u003Cline x1=\"100\" y1=\"0\" x2=\"100\" y2=\"68\" fill=\"none\"\u002F>\u003Cline x1=\"40\" y1=\"160\" x2=\"40\" y2=\"128\" fill=\"none\"\u002F>\u003Cline x1=\"80\" y1=\"160\" x2=\"80\" y2=\"104\" fill=\"none\"\u002F>\u003Cline x1=\"25\" y1=\"40\" x2=\"31\" y2=\"40\" fill=\"none\"\u002F>\u003Cline x1=\"25\" y1=\"120\" x2=\"31\" y2=\"120\" fill=\"none\"\u002F>\u003Cline x1=\"28\" y1=\"117\" x2=\"28\" y2=\"123\" fill=\"none\"\u002F>\u003Ctext x=\"10\" y=\"35\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">2\u003C\u002Ftext>\u003Ctext x=\"10\" y=\"115\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">3\u003C\u002Ftext>\u003Ctext x=\"130\" y=\"75\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">5\u003C\u002Ftext>\u003Ctext x=\"44\" y=\"12\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">6\u003C\u002Ftext>\u003Ctext x=\"84\" y=\"12\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">1\u003C\u002Ftext>\u003Ctext x=\"104\" y=\"12\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">8\u003C\u002Ftext>\u003Ctext x=\"44\" y=\"156\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">4\u003C\u002Ftext>\u003Ctext x=\"84\" y=\"156\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">7\u003C\u002Ftext>\u003C\u002Fg>\u003Ctext x=\"426\" y=\"93.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">U1\u003C\u002Ftext>\u003Ctext x=\"426\" y=\"111.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">LM386N-1\u003C\u002Ftext>\u003C\u002Fg>\u003Cg transform=\"translate(320,280) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"C1\" id=\"elem-c1\" cursor=\"pointer\">\u003Cg transform=\"translate(700,160) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"48\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"32\" y2=\"20\" fill=\"none\"\u002F>\u003Cline x1=\"32\" y1=\"6\" x2=\"32\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"6\" x2=\"48\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003Ctext x=\"24\" y=\"12\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">+\u003C\u002Ftext>\u003C\u002Fg>\u003Ctext x=\"736\" y=\"152.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">C1\u003C\u002Ftext>\u003Ctext x=\"736\" y=\"218.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">250µF\u003C\u002Ftext>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"C2\" id=\"elem-c2\" cursor=\"pointer\">\u003Cg transform=\"translate(700,200) rotate(90)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"48\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"32\" y2=\"20\" fill=\"none\"\u002F>\u003Cline x1=\"32\" y1=\"6\" x2=\"32\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"6\" x2=\"48\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"704\" y=\"236.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">C2\u003C\u002Ftext>\u003Ctext x=\"704\" y=\"254.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">0.05µF\u003C\u002Ftext>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"R1\" id=\"elem-r1\" cursor=\"pointer\">\u003Cg transform=\"translate(700,300) rotate(90)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"48\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"20\" y2=\"20\" fill=\"none\"\u002F>\u003Crect x=\"20\" y=\"12\" width=\"40\" height=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"60\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"698\" y=\"336.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">R1\u003C\u002Ftext>\u003Ctext x=\"698\" y=\"354.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">10Ω\u003C\u002Ftext>\u003C\u002Fg>\u003Cg transform=\"translate(660,400) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"LS1\" id=\"elem-ls1\" cursor=\"pointer\">\u003Cg transform=\"translate(800,220) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"68\" height=\"88\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"24\" fill=\"none\"\u002F>\u003Cline x1=\"20\" y1=\"56\" x2=\"20\" y2=\"80\" fill=\"none\"\u002F>\u003Crect x=\"12\" y=\"24\" width=\"16\" height=\"32\" fill=\"none\"\u002F>\u003Cpolygon points=\"28,24 48,4 48,76 28,56\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"858\" y=\"256.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">LS1\u003C\u002Ftext>\u003Ctext x=\"858\" y=\"274.4\" text-anchor=\"start\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">8Ω\u003C\u002Ftext>\u003C\u002Fg>\u003Cg transform=\"translate(800,320) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Cline x1=\"20\" y1=\"0\" x2=\"20\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"6\" y1=\"10\" x2=\"34\" y2=\"10\" fill=\"none\"\u002F>\u003Cline x1=\"10\" y1=\"16\" x2=\"30\" y2=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"14\" y1=\"22\" x2=\"26\" y2=\"22\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"R2\" id=\"elem-r2\" cursor=\"pointer\">\u003Cg transform=\"translate(380,-100) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"48\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"20\" y2=\"20\" fill=\"none\"\u002F>\u003Crect x=\"20\" y=\"12\" width=\"40\" height=\"16\" fill=\"none\"\u002F>\u003Cline x1=\"60\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"420\" y=\"-101.6\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">R2\u003C\u002Ftext>\u003Ctext x=\"420\" y=\"-47.6\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">10kΩ\u003C\u002Ftext>\u003C\u002Fg>\u003Cg class=\"comp-interactive\" data-refdes=\"C3\" id=\"elem-c3\" cursor=\"pointer\">\u003Cg transform=\"translate(500,-100) rotate(0)\" fill=\"none\" stroke=\"#2e2e2c\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\u003Crect x=\"-4\" y=\"-4\" width=\"88\" height=\"48\" fill=\"transparent\" stroke=\"transparent\" pointer-events=\"all\"\u002F>\u003Cline x1=\"0\" y1=\"20\" x2=\"32\" y2=\"20\" fill=\"none\"\u002F>\u003Cline x1=\"32\" y1=\"6\" x2=\"32\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"6\" x2=\"48\" y2=\"34\" fill=\"none\"\u002F>\u003Cline x1=\"48\" y1=\"20\" x2=\"80\" y2=\"20\" fill=\"none\"\u002F>\u003C\u002Fg>\u003Ctext x=\"540\" y=\"-107.6\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">C3\u003C\u002Ftext>\u003Ctext x=\"540\" y=\"-41.6\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">0.033µF\u003C\u002Ftext>\u003C\u002Fg>\u003Ccircle data-kind=\"junction\" cx=\"480\" cy=\"180\" r=\"4.5\" fill=\"#2e2e2c\" stroke=\"none\"\u002F>\u003Ccircle data-kind=\"junction\" cx=\"620\" cy=\"180\" r=\"4.5\" fill=\"#2e2e2c\" stroke=\"none\"\u002F>\u003Ctext x=\"40\" y=\"186.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003Ctext x=\"136\" y=\"216.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">VIN\u003C\u002Ftext>\u003Ctext x=\"220\" y=\"326.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003Ctext x=\"280\" y=\"206.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003Ctext x=\"340\" y=\"326.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003Ctext x=\"680\" y=\"446.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003Ctext x=\"820\" y=\"366.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">GND\u003C\u002Ftext>\u003C\u002Fsvg>",[610],"lm386-audio-amplifier-gain-20",[135],[],"canonical",null,[616,629,642],{"slug":610,"cluster":20,"tier":21,"supplyVoltage":617,"voltageSpecification":620,"signalDomain":623,"breadboardFriendly":14,"title":624,"shortDescription":625,"bomCount":626,"formulaCount":627,"search":628},[618,619],"5v","12v",{"kind":621,"value":622,"label":27},"supply","9V battery as drawn; LM386N-1 operating range 4 V – 12 V (TI §6.5); design table 5 V – 12 V (TI Table 9-1)","analog","LM386 Audio Amplifier with Gain 20","The minimum-parts speaker amplifier from the TI LM386 datasheet: a volume potentiometer, the LM386 at its internal gain of 20, an output capacitor and an RC network driving an 8 Ω speaker from a 9 V battery.",7,3,"lm386 audio amplifier with gain 20\nthe minimum-parts speaker amplifier from the ti lm386 datasheet: a volume potentiometer, the lm386 at its internal gain of 20, an output capacitor and an rc network driving an 8 ω speaker from a 9 v battery.\nlm386 audio amplifier with gain 20\nthe minimum-parts speaker amplifier from the ti lm386 datasheet: a volume potentiometer, the lm386 at its internal gain of 20, an output capacitor and an rc network driving an 8 ω speaker from a 9 v battery.\nlm386 audio amplifier with gain 20\nthe minimum-parts speaker amplifier from the ti lm386 datasheet: a volume potentiometer, the lm386 at its internal gain of 20, an output capacitor and an rc network driving an 8 ω speaker from a 9 v battery.\naudio_amplifiers\nlow-voltage audio power amplifier\nlm386n-1\nu1\nrotary potentiometer\n10kω\nrv1\naluminium electrolytic capacitor\n250µf\nc1\nceramic or film capacitor\n0.05µf\nc2\nresistor 1\u002F4 w\n10ω\nr1\nloudspeaker\n8ω\nls1\n9 v battery\n9v\nbt1",{"slug":630,"cluster":20,"tier":21,"supplyVoltage":631,"voltageSpecification":633,"signalDomain":623,"breadboardFriendly":636,"title":637,"shortDescription":638,"bomCount":639,"formulaCount":640,"search":641},"ne5532-ultra-low-noise-inverting-mic-preamp",[619,632],"dual_rail",{"kind":621,"value":634,"label":635},"±15 V symmetrical split supply (±3 V to ±20 V)","Power Supply Rails (V+ \u002F V-)",false,"NE5532 Ultra-Low-Noise Inverting Microphone Preamplifier","Single-channel ultra-low-noise inverting audio preamplifier based on the Texas Instruments NE5532 op-amp, featuring +33.4 dB closed-loop gain, input DC blocking, and high-frequency phase compensation.",9,4,"ne5532 ultra-low-noise inverting microphone preamplifier\nsingle-channel ultra-low-noise inverting audio preamplifier based on the texas instruments ne5532 op-amp, featuring +33.4 db closed-loop gain, input dc blocking, and high-frequency phase compensation.\nne5532 ultra-low-noise inverting microphone preamplifier\nsingle-channel ultra-low-noise inverting audio preamplifier based on the texas instruments ne5532 op-amp, featuring +33.4 db closed-loop gain, input dc blocking, and high-frequency phase compensation.\nne5532 ultra-low-noise inverting microphone preamplifier\nsingle-channel ultra-low-noise inverting audio preamplifier based on the texas instruments ne5532 op-amp, featuring +33.4 db closed-loop gain, input dc blocking, and high-frequency phase compensation.\naudio_amplifiers\ndual low-noise high-speed audio operational amplifier\nne5532p\nu1\ninput series resistor\n1kω\nr1\nclosed-loop feedback resistor\n47kω\nr2\nnon-inverting input dc bias resistor\n1kω\nr3\noutput cable isolation resistor\n47ω\nr4\ninput ac coupling capacitor\n10µf\nc1\nfeedback phase compensation capacitor\n47pf\nc2\nnon-inverting bias ac bypass capacitor\n10µf\nc3\noutput ac coupling capacitor\n10µf\nc6",{"slug":643,"cluster":644,"tier":21,"supplyVoltage":645,"voltageSpecification":647,"signalDomain":650,"breadboardFriendly":14,"title":651,"shortDescription":652,"bomCount":626,"formulaCount":640,"search":653},"2n2222-relay-driver-flyback-protection","microcontroller_interfaces",[646,618,619],"3.3v",{"kind":621,"value":648,"label":649},"+12.0 V DC nominal (+10.8 V to +13.2 V operating range)","Relay Supply Voltage (VLOAD)","digital","2N2222 \u002F 2N2222A NPN BJT Relay Driver with 1N4007 Flyback Clamping Diode","Discrete NPN bipolar junction transistor low-side relay driver circuit with 1N4007 flyback suppression diode, base saturation drive, and supply decoupling for 3.3V\u002F5V MCU control.","2n2222 \u002F 2n2222a npn bjt relay driver with 1n4007 flyback clamping diode\ndiscrete npn bipolar junction transistor low-side relay driver circuit with 1n4007 flyback suppression diode, base saturation drive, and supply decoupling for 3.3v\u002F5v mcu control.\n2n2222 \u002F 2n2222a npn bjt relay driver with 1n4007 flyback clamping diode\ndiscrete npn bipolar junction transistor low-side relay driver circuit with 1n4007 flyback suppression diode, base saturation drive, and supply decoupling for 3.3v\u002F5v mcu control.\n2n2222 \u002F 2n2222a npn bjt relay driver with 1n4007 flyback clamping diode\ndiscrete npn bipolar junction transistor low-side relay driver circuit with 1n4007 flyback suppression diode, base saturation drive, and supply decoupling for 3.3v\u002F5v mcu control.\nmicrocontroller_interfaces\nnpn general purpose bipolar transistor\n2n2222a\nq1\ngeneral purpose rectifier \u002F clamp diode\n1n4007\nd1\nsubminiature spdt signal \u002F power relay\ng5v-1-dc12\nk1\nbase current-limiting resistor 1 kω\n1kω\nr1\nbase pull-down bleeder resistor 10 kω\n10kω\nr2\nhigh-frequency ceramic decoupling mlcc\n100nf 50v\nc1\nbulk aluminum electrolytic decoupling\n47µf 25v\nc2",1793836432561]