[Amps] SB-200 ratings

[jeremy-ca]

Its more complex than just drive power Lou.

The 572B is rated at 50W drive per tube in typical ICAS operation.  It is also rated at 250 ma Ip and 50 ma Ig per tube. The SB-200 manual states to increase drive until 500 ma Ip is reached; it says nothing about slamming it right off with 100+ W.

How often do you reduce drive to stay within those ratings?
Ive had as much as 900W out on 6M with a new set of Chinese tubes at 100W drive. All that does is hurt the tubes as well as stress the PS.

Carl
KM1H 
  ----- Original Message ----- 
  From: Gudguyham at aol.com 
  To: km1h at jeremy.mv.com ; amps at contesting.com 
  Sent: Wednesday, August 15, 2007 1:47 PM
  Subject: Re: [Amps] Amps Digest, Vol 56, Issue 20


  In a message dated 8/15/2007 1:13:24 PM Eastern Daylight Time, km1h at jeremy.mv.com writes:

    There is no need to go ugly if the SB-200 is run within the tube ratings and 
    not overdriven as usually is the case
  Is an SB-200 overdriven with 100 watts?  Lou





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