Dave Edwards wrote:
Both amps work great. I wish the idea behind the SB230 could have been
pursued. I don't think it is impossible to have silent operating
There is no reason one could not take a pair of the surplus GI7B, remove the
finned radiators (nut and a couple of washers), and attach a big finned
heatsink
like the SB230 had. The anodes are grounded and the heaters are run off
a well
isolated transformer. Drive is transformer coupled as well. It will cost
a little
more than doing things the 'conventional' way, but for no fan, it's
probably worth
the trouble.
-t
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