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Guitar amp preamp

Guitar amp preamp using BC546 and BC556 Guitar amp preamp using BC546 and BC556 P1_________________ 10K   Linear Potentiometer P2_________________ 10K   Log. Potentiometer R1,R2______________68K   1/4W Resistors R3________________680K   1/4W Resistor R4________________220K   1/4W Resistor R5_________________33K   1/4W Resistor R6__________________2K2  1/4W Resistor R7__________________5K6  1/4W Resistor R8,R18____________       330R   1/4W Resistors R9_________________47K   1/4W Resistor R10________________18K   1/4W Resistor R11_________________4K7  1/4W Resistor R12_________________1K   1/4W […]

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 = […]

Radio Remote Control using DTMF receiver transceiver

Radio Remote Control using DTMF receiver transceiver

PCB Booster tube and light flow control valves using 12AU7

PCB Booster tube and light flow control valves using 12AU7 A 12AU7-based booster and light overdrive running at 9 volts.  A very fun little circuit that has a minimal parts count and actually generates a good amount of boost and some overdrive. You can even run this one of a 9 volt battery if you […]

TDA2009 Circuit BCL 18W

TDA2009 Circuit BCL 18W Bridge audio power circuit

Dual Audio Power Amplifier circuit

Dual Audio Power Amplifier circuit using KA2209 Dual Audio Power Amplifier circuit using KA2209 Bridge Audio Power Amplifier circuit using KA2209

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