Audio circuit diagrams
Tremolo Effect Generator
Stand-alone, 9V battery powered unit. High overload margin, low distortion circuit Read more...
Guitar Preamp with Tone Controls
An electric guitar pre-amp with tone controls using dual supplies. The guitar pickup is high impedance, therefore good quality screened cable must be used between guitar pickup and the preamp. Read more...
Hi-Fi Preamplifier
This circuit has an exceptionally fast high frequency response,as demonstrated by applying an 100kHz squarewave to the input. Read more...
Headphone Amplifier
An amplifier to drive low to medium impedance headphones built using discrete components. Read more...
Audio Peak Level Meter
Using a single MOSFET Op-amp this circuit samples the audio input and displays peak readings. Read more...
Tone Control
Based on the classic Baxendall tone control circuit, this provides a maximum cut and boost of around 6dB at 10K and 50Hz. Read more...
Audio Level Meter
Audio levels can be monitored using a small panel meter with this circuit built from discrete components. Read more...
Buffer Amplifier
hifi preamplifier designed to convert high output impedance amplifiers to 600 ohm outputs. Read more...
