[Heathkit] Tubes for SB-200

Kenneth G. Gordon kgordon2006 at verizon.net
Mon Jun 4 15:14:40 EDT 2007


Which tubes would you recommend to replace the two  572Bs in 
my SB-200?

AES has them at $169.00 each, but a pair of those would cost 
more than the amp.

I haven't been able to find out whether or not Cetron is still in 
business.

The Svetlana versions appear to have rather small plates and 
higher mu, so may not work correctly in the SB-200

The Chinese tubes are certainly inexpensive, but I have not been 
able to find out anything about their reliability, etc.

Suggestions?

Ken Gordon W7EKB


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