[Amps] SB220 Questionn

[Gary Smith]

Try tuning the 15 meter input slug of the amp to where the vswr is nearer 1:1.  You may need to do this into a dummy load at low power from the transmitter to give you the time to make correct adjustments as well as not have to be concerned with other factors affecting your problem.
73,
Gary 
WA6FGI


 
  ----- Original Message ----- 
  From: R.Lake 
  To: amps at contesting.com 
  Sent: Monday, February 14, 2005 12:13 PM
  Subject: [Amps] SB220 Questionn


      I have a SB220 that is putting out approx 500w w/100w drive on 15m 
  only...input swr is showing abt 3:1..plate current abt 350ma..normal 
  HV...the rest of the bands are fine ...the band switch is relatively new 
  and I have Rich's parasitic stuff installed....
  any ideas on where to look first?
  Thanks for taking the time
  Randy N1KWF
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