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Posts tagged Headphone

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 = […]

PCB Design Jobs

PCB Design Jobs

qsc power amplifiers

qsc power amplifiers using NE5532, BC547B, BC557B, TIP42A, TIP41A qsc power amplifiers using NE5532, BC547B, BC557B, TIP42A, TIP41A Parts: P1 22K P2 100K R1 820R 1/4W R2,R4,R8 4K7 R3 500R 1/2W R5 82K 1/4W R6, R7 47K 1/4W R9 10R 1/2W R10 R22 4W C1, C8 470nF 63V C2, C5 100uF 25V C3, C4 470uF […]

How to solder a very ideal for assembling electronic components?

SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is […]

Electric Heating

Electric Heating circuit Electric Heating and Solar Water Heating System Controller Circuit

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