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Posts tagged portable headphone amplifier

Portable guitar headphone circuit

Portable guitar headphone circuit I built a portable headphone amplifier for testing purposes Headphone amp circuit using : R1 = 10K R2 = 100K R3 = 68K R4 = 1.5K R5 = 3.3K R6 = 330R R7 = 4K7 R8 = 2.2R C1 = 1µF-63V C2 = 100µF-25V C3 = 470µF-25V Q1 =  BC239C Q2 […]

Simple Audio Headphone amp circuit

Simple Audio Headphone amp circuit using 1458 Simple Audio amp circuit for Headphone using 1458

Car Stereo Automotive Wiring Diagrams

Car Stereo Automotive Wiring Diagrams

hspd 12 piv circuit using 2N3439

hspd 12 piv circuit using 2N3439 hspd 12 piv circuit using 2N3439 R1 …………. 33K ohm R2 …………. 100 ohm VR …………. 1K ohm c1 …………. 50uF – 450V TR1 ………… 2N3439 TR2 ………… 2N3439 T1 Transformer Pri: 110 – 220V Sec: 0 – 220V 5mA

1w Audio power amplifier schematics

1w Audio power amplifier schematics using AN7112 Mini audio power amplifier for portable radio provides access to AM and FM radio

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