Sabtu, 17 November 2012

Active FM Amplifier:

Parts List:
     R1 = 27K
     R2 = 270 ohm
     R3 = 1K 

Tr1,Tr2 = 22pF, trimmer cap (15-40pF)
  C1,C2 = 5.6pF
     C3 = 0.001uF (1nF), ceramic
  C4,C5 = 0.01 (10nF), ceramic
     C6 = 0.1uF (100nF), ceramic

     Q1 = 2SC2498, 2SC2570, 2N5179, SK9139, or NTE10. NPN VHF/UHF transistor
     L1 = 4 turns of 20SWG magnet wire, 5mm diameter. (so-called 3T+1)
     L2 = 3 turns of 20SWG magnet wire, 5mm diameter.

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