[SBE] Gates FM Solidstatesman TE-3 Exciter

[George Nicholas]

Curt - If no one has replaced any of the electrolytic capacitors, I would suggest your start there.

  ----- Original Message ----- 
  From: Curt Yengst 
  To: sbe at sbe.org 
  Sent: Tuesday, June 09, 2009 10:05 AM
  Subject: [SBE] Gates FM Solidstatesman TE-3 Exciter


  Fellow gearheads:

  As a rainy day project, I'm in the process of trying to fix a Gates FM Solidstatesman TE-3 exciter.  A while back, it was putting out enough power to keep the transmitter happy, but it wouldn't stay on frequency.  After reseating the socketed transistors on the Modulated Oscillator's PCB, it stayed put for a while, but began to drift again.  I eliminated the sockets and soldered the transistors directly to the board.  Now it stays on frequency.

  The problem now is that it only puts out about 3.5 Watts instead of 10 Watts.  The only user adjustment on the Power Amplifier is the input drive control, which is pretty much maxxed out.  If I remember correctly, it was only putting out 3.5 Watts even before I did the transistor fix, so I'm not entirely convinced that was the cause of this new problem.

  If anyone here has experience with this thing, any advice would be greatly appreciated.

  Curt


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