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Audio - all subcategories
25w audio amplifier with MOSFET transistors for best quality
author: unknown visits: 25298 
Simple add-on module. Switchable "Control-flat" option.
author: RED Free Circuit Designs visits: 24208 
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: 23244 
Digital volume control for your audio device with only few components.
author: visits: 22693 
Useful to listen in faint sounds. 1.5V Battery operation. Amplifies only faint and weak sounds!
author: RED Free Circuit Designs visits: 21709 
Low distortion bass and treble control for amplifier
author: Tasos Anagnwstou visits: 18337 
Stereo Preamplifier with Bass-boost project
author: RED Free Circuit Designs visits: 18095 
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: 17920 |
 Audio (49) Power & high voltage (43) Radio (23) Light & LED (31) Tools & measurement (40) Telephone (18) Automotive (10) Microcontrollers (12) Sensors & control (47) Timers & oscillators (40) Miscellaneous (26)
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