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Audio - all subcategories
High-quality modular design. 9V Battery powered - Very low current drawing. Preamp, tone control, mixer - all in one
author: RED Free Circuit Designs visits: 8001
Digital volume control for your audio device with only few components.
author: visits: 7795
Stereo Preamplifier with Bass-boost project
author: RED Free Circuit Designs visits: 7027
Low distortion bass and treble control for amplifier
author: Tasos Anagnwstou visits: 6924
Small digital volume control device. Modernize your amplifier.
author: visits: 6341
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: 6251
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: 6098
Useful to listen in faint sounds. 1.5V Battery operation. Amplifies only faint and weak sounds!
author: RED Free Circuit Designs visits: 5691
10W Old-Style ultra-compact Combo. Two inputs - Overdrive - Treble-enhancement.
author: RED Free Circuit Designs visits: 5467 |
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)All subcategories amplifiers preamps, filters, effects VU meters & spectrum analyzers mixers other Doorbell for the Deaf High Quality Intercom Combinational Conjuring Trick POT-PLANT POWER Ultrasonic Dog Whistle Quiz Circuit LED Torch Insect Repellant Speaker Microphone Circuit Magic Wand Conjuring Trick. Led display digital Voltmeter 500W low cost 12V to 220V inverter 2N3055 Power Amplifier Metal Detector Basic UPS Power Supply 200W audio amplifier 100W RMS Amplifier LED Torch PlayPIC® Low pass filter - Subwoofer |