Fw: GI-7B tubes in SB-200

[oh8jep]

How much current  output is possible from SB-200's
original HV transformer,so that it is not geting heated abnormally?

----- Original Message ----- 
From: oh8jep 
To: HEATH at LISTSERV.TEMPE.GOV 
Cc: apo at kotinet.com 
Sent: Thursday, August 14, 2003 3:45 PM
Subject: GI-7B tubes in SB-200


Hello!

Has anyone tried to rebuilt SB-200 working with russian 2xGI-7B triodes
they are very cheap (much more cheaper than 572B tubes) and based to parametres
better tubes than 572B? Naturally it needs separate filament transformer if those tubes used.

I can not push out from my SB-200 with Cetron 572B (not new tubes) more than 450W average,is more even possible?

Best 73's

Aatos OH8JEP

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