|[AMRadio] Keying a Gates BC-1?|
k4kyv at hotmail.com
Mon Apr 18 19:32:09 EDT 2005
>>second is avoiding excessive cathode-to-filament
>>voltage in the 807 audio drivers (cathode followers).
>>Perhaps both worries are more imagined than real?
I forgot to mention that. The output voltage of the cathode followers
exceeds the RCA manual's recommendation for cathode-to-filament voltage, but
when I worked at the broadcast station in the 60's that never was a problem,
and since I have acquired my BC1T it hasn't been a problem. I suspect the
807's will withstand much more H-K voltage than the RCA specs recommend. I
have thought about the same thing, but it just doesn't seem to b e a
problem. I suppose you would have to replace the 807 if one broke down,
but it is still a common, easy-to-find tube. If you are using the stock
cathode follower circuit, I wouldn't sweat it.
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