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Search results: 187   Output: 31-40
  1. Gabor Toth Description To listen old vinyl LP's in a correct sounding on a sassy with dynamic cartridge you need a circuit, named RIAA corrector. This circuit you can find in old amps, but it isn't embedded in home cinema equipments or amplifiers ...
    14-04-2010
  2. Generates very low-distortion sine waves up to 1V RMS. No thermistors required - No settling time Circuit diagram: Parts: P1 10K Log. Potentiometer (Dual-ganged) P2 2K2 Linear Potentiometer R1, R2, R4, R5 3K3 1/4W Resistors R3, R6 820R 1/4W ...
    30-03-2010
  3. Rod Elliott For audio testing, a pink noise source is an invaluable tool. It is essentially a flat frequency response noise source, and will quickly show any anomalies in speaker systems, room acoustics and crossover networks. White noise (the ...
    26-03-2010
  4. Izhar Fareed Using this low cost Project one can reproduce AUDIO from TV without disturbing anyone. It does not use any wire between TV and headphone. In place of pair of wires it uses invisible Infrared light to transmit audio signals from TV to ...
    20-03-2010
  5. Rajkumar Sharma This schematic is designed to operate with minimum of external components. This amplifier offers high quality performance at very low distortion. Project is based on National LM1875 IC. The IC is thermal and short circuit protected. ...
    25-02-2010
  6. Andy Collinson Description: A microphone amplifier that may be used with either Electret Condenser Microphone (ECM) inserts or dynamic inserts, made with discrete components. Notes: Both transistors should be low noise types. In the original ...
    14-12-2009
  7. Alexander Weber I searched the web for a cheap method to let the ATmega respond to sound. My knowledge in analog circuits is very limited, but what I do remember, is that you can not attach a electret mircophone to a controller pin. The signal of ...
    02-12-2009
  8. Turns-off your amplifier when idle for 15 minutes Fed by amplifier tape-output Circuit diagram: Parts: R1,R8 1K 1/4W Resistors R2,R3 4K7 1/4W Resistors R4 22K 1/4W Resistor R5 4M7 1/4W Resistor R6,R9 10K 1/4W Resistors R7 1M5 1/4W Resistor R10 100K ...
    20-11-2009
  9. Audioguru Dec '05 This project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range. The circuit is unique because it has an additional range of 20dB provided by an automatic gain control to allow it to be very sensitive to low ...
    26-10-2009
  10. A Microchip PIC based USB sound card INTRODUCTION The idea for creating a USB sound card based on a PIC came from discussions of other people creating one on the Microchip USB forum. The hardware of the card is based on all Microchip products. The ...
    11-09-2009
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