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[AMPS] Reducing LK550-ZC Fan Noise

To: <amps@contesting.com>
Subject: [AMPS] Reducing LK550-ZC Fan Noise
From: W8JI@contesting.com (Tom Rauch)
Date: Wed, 30 Aug 2000 09:25:54 -0400

> Has anyone out there done a mod like this to the LK550 or a similar Amp
> Supply model? If so, please save me some time and tell me how did you did
> it!
> 
> 73, Dick WC1M

Every amp supply amplifier I've ever tested has operated the tube 
seals far over the factory rating, even with the fans on high speed.
I've found that to be true with no RF drive, and the tubes just idling 
with normal quiescent current.

I'd sure invest in some temperature measuring if I were you.
73, Tom W8JI
w8ji@contesting.com

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