This is the circuit diagram of stereo pre-amp with volume and tone control. When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control. This circuit available in kit. This circuit operated with 12V symmetrical/dual polarity power supply.

Circuit Features:

• Stereo volume control
• Stereo Baxandall bass and treble control
• Low noise en = 15 nV/√ Hz (typ)
• Output short-circuit protection
• Low harmonic distortion: 0.01% (typical)

Circuit Specifications:

• Supply voltage: 2 x 12VAC / 100mA
• Frequency response: 3Hz – 500kHz (-3dB)
• Standard amplification: x1
• Signal to noise ratio: 98dB
• Harmonic distortion: < 0.005% (@1KHz)
• Maximum output: 5V RMS
• Tone control:
  + and -15dB @ 20Hz
  + and -15dB @ 15kHz
• Input impedance: 50k ohms

To build this circuit, please download the kit manual document from Velleman. It contains schematic diagram and partlist and the guide to build this preamp circuit.

Download Stereo Preamp Circuit Manual Kit

1 file(s) 920.00 KB

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