…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…

…When the switch is released C3 begins a slower discharge through R7 and R3 with a time constant of about 5 seconds. The op amp is set up as a…

…Circuit Notes: This simple circuit uses a 741 op-amp in differential mode as a continuity tester. The voltage difference between the non-inverting and inverting inputs is amplified by the full…

…sound is detected by ultrasonic receiver. The signal is then amplified by IC1:A and IC1:B. IC1:A is selfbiasing via C2 & R5. The time constant of the first amplifier is…

…generator. Op-amp A2 operates as an integrator, whilst op-amp A3 runs as being a comparator. A2 and A3 together with each other perform as being a “wandering voltage generator” op-amp….

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…