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Circuit 2N2222

Circuit 2N2222 for Headphone amplifier This circuit can source about 500mA continuously, You built a 2 transistor project and it worked great, but now it has stopped working. You decide the transistor may be faulty.

How do I install a car stereo audio?

How do I install a car stereo audio? Here wiring diagram for the multimedia on your car How do I install a car stereo audio? How do I install a car stereo audio? Here wiring diagram for the multimedia on your car, to work on multimedia (DVD, CD, TAPE, RADIO) in order to perfect In […]

Guitar headphone amplifier

Guitar headphone amplifier using BC239C, BC337, BC327 Guitar headphone amplifier using BC239C, BC337, BC327 Guitar headphone amplifier 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 = […]

Projection 50″ TV, Power Supply Problem?

afterburner asked: Tried to paste a circuit diagram into this problem, but no luck. PROBLEM DESCRIPTION: Believe the problem is in the power suppy. Model: Hitachi CU 5002k 50″ 3 tube projection. No picture, raster or sound. I have no scope. Have VTOM. Output from the Sub Power Supply is, and should be, 122 VAC […]

25W Audio Amplifier Circuit

25W Audio Amplifier Circuit 25W Audio Amplifier Circuit using STK4142 II

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