Electronic projects

Stereo Preamplifier with Bass-boost project

author: RED Free Circuit Designs
visits: 3407

Stereo amplifier with 30w per channel

author:
visits: 3122

High-quality modular design. 9V Battery powered - Very low current drawing. Preamp, tone control, mixer - all in one

author: RED Free Circuit Designs
visits: 2979

25w audio amplifier with MOSFET transistors for best quality

author: unknown
visits: 2664

Useful to listen in faint sounds. 1.5V Battery operation. Amplifies only faint and weak sounds!

author: RED Free Circuit Designs
visits: 2472

Low distortion bass and treble control for amplifier

author: Tasos Anagnwstou
visits: 2411

This 3 channel 15 LED spectrum analyzer is the perfect addition to any audio amp project. It produces fantastic displays on three LED bars that can be individually adjusted for any particular frequency range.

author:
visits: 2388

10W Old-Style ultra-compact Combo. Two inputs - Overdrive - Treble-enhancement.

author: RED Free Circuit Designs
visits: 2387

Timer circuit that turns-off your amplifier when idle for 15 minutes. Fed by amplifier tape-output.

author: RED Free Circuit Designs
visits: 2357

This is a very simple, low cost, Hi-Fi quality power amplifier. You can build it 5 ways, like it’s shown in the table (from 20 W to 80 W RMS).

author: Jacint Chapo
visits: 2341