[TenTec] Omni VI and power supply occilation???

[J. Reed]

Hey, 'D',  tell us the type of power supply, eg: linear, switching, etc...
also, what is the ripple voltage and frequency at this 35 amp load... 
    Also, is the Omni on SSB or CW or AM while failing.   You 
also weren't very clear on yesterdays operation, did it fail overnight 
or during the morning cold start...  help us help you...  Jim R.
  ----- Original Message ----- 
  From: denton 
  To: Discussion of Ten-Tec Equipment 
  Sent: Saturday, April 09, 2005 11:14
  Subject: [TenTec] Omni VI and power supply occilation???


  I recently purchased a used Omni VI that quit transmitting, sent it in to TT 
  for repair and alingment. TT replaced the finals and some other work...
  I recieved the repaired Omni yesterday and wasted no time getting back on 
  the air.
  This morning....no rf out AGAIN!!! Exact same sympthons as before.
  I made a call to the TT repair department, and they said since I run a 
  homebrew power supply, I may have an ocillation from the power supply that 
  is destroying the finals in the Omni.
  What ocillation??
  I have used this power supply for years. It is currently feeding an FT 990 
  and uhf/vhf radio without problems. The power supply has fed various TT hf 
  rigs thru the years without problem. Is there something unique about an Omni 
  that will not allow it to be used in my station on the existing power 
  supply??
  The power supply is currently hooked up to a pair of absorption mat deep 
  cycle batteries with a blocking diode between the B+ and the batteries. It 
  has been used this way for quite some time without problem, and the power 
  supply alone is capable of 35 amps continous all day long.
  TT also tried to tell me this morning that I may have to run the Omni, when 
  it gets back from being repaired a second time, on a separate power supply 
  that will shut down when it detects ocillation.
  Anyone run across this before...thanks.... 


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