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Sunday, July 19, 2009 | Sunday, July 19, 2009 | 0 Comments

Pre-Amp Voltage Low

To create a simple pre-amp is built in a way that's simple too. This series may not generate noise a bit.
Components needed:
  1. Transistor (TR) 1 = 2N2484
  2. Transistor (TR) 2 = 2N2484
  3. Condensator (C) 1 = 1uF
  4. Condensator (C) 2 = 1uF
  5. Condensator (C) 3 = 70pF
  6. Condensator (C) 4 = 100uF
  7. Condensator (C) 5 = 47uF
  8. Resistor (R) 1 = 240Kohm or 220Kohm
  9. Resistor (R) 2 = 1Kohm
  10. Resistor (R) 3 = 100Kohm
  11. Resistor (R) 4 = 660ohm
  12. Resistor (R) 5 = 4K7ohm
  13. Resistor (R) 6 = 2K2ohm
  14. Resistor (R) 7 = 680ohm
  15. Resistor (R) 8 = 220Kohm
Pre-Amp will produce more or less voltage DC 15Volt. The frequency 25hz reach up to 26Khz, or 3dB.



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