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Audio - all subcategories
Measures 10mV to 50Volt RMS in eight ranges
author: RED Free Circuit Designs visits: 3055 
High headroom input circuitry. 9V Battery powered.
author: RED Free Circuit Designs visits: 2998 
Small simple audio mixer with a few components around one FET transistor (2N3819).
author: visits: 2873 
Small but useful device. It can amplify signal from many audio devices for your headphones.
author: RED Free Circuit Designs visits: 2701 
This circuit indicates audio output power via three LEDs. Nice addon to your amplifier.
author: RED Free Circuit Designs visits: 2670 
Small, easy to build low impedance microphone amplifier
author: visits: 2536 |
 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 PlayPICŪ Low pass filter - Subwoofer |
