…IC1 = LM358 dual op-amp single supply Mic = Electret Microphone Notes: Use R5 to adjust the gain of op-amp LM358. The LM358 has dual op-amp module, you may build…

…guitar amp or just provide a great preamp tone. Designed/Manufactured by PAiA Electronics Download Tube Head circuit + components list and explanation in pdf file: Tube Head Pre-amp Circuit 1…

…47k resistors are again of the 1% variety. Download the schematics and circuit explanation of Tube Mic Pre-Amp circuit: Tube Mic Pre Amplifier 1 file(s) 26.25 KB Download Circuit Manual…

Here is the 100W RMS audio amplifier schematic diagram: This circuit is quite simple but will give you high quality audio output. Take a note that above diagram designed for…

This is a HiFi pre-amplifier circuit diagram with low noise output. Very wide range frequency from about 10Hz until up to 100Khz? will be gained by this preamplifier for maximum…

…most of power amplifier. Schematic diagram: Pre-Amp + Tone Control Components List: Resistors: R1, R2__________________ 220R R3, R4__________________ 4K7 R5______________________ 2K2 R6______________________ 1K Capacitors: C1, 2, 7, 8, 17_________ 10…

Designed by Don Tillman, this guitar pre-amp circuit design is dedicated for people who don”t like op-amps module. This circuit is a discrete JFET pre-amplifier design, use 2N5457 as the…

This is high fidelity, high quality 25W HiFi audio amplifier circuit delivers great audio performance. You don’t need pre amplifier circuit for this design since it can be directly connected…

This is the circuit diagram of 18W audio amplifier. The circuit is quite simple and inexpensive to built. It uses a pair of power transistor TIP41A and TIP42A for single…