[Hammarlund] Super Pro bias supply

[Carl]

Al, the 6F6 driver IS controlled by the bias supply and if it fails the tube 
runs away, draws excessive current and takes out the transformer.

Carl
KM1H


----- Original Message ----- 
From: "Al Santangelo" <ve3ajm at gmail.com>
To: "hammarlund" <hammarlund at mailman.qth.net>
Sent: Wednesday, July 25, 2012 7:16 AM
Subject: [Hammarlund] Super Pro bias supply


> OK on the further information.
> So then, what is the connection between the failure of the
> -50v bias supply and the failure of the audio driver transformer that
> I've read about?
> This bias supply is not connected at all to the audio driver
> transformer ie.T7 in the SP-400X receiver. Thanks.
>
> Al Santangelo
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