Russian (USSR) specs are not the same as Eimac or other hi-quality
manufacturers. There is, for example, not even a published figure on
cathode input impedance. That said, stick to your sheet specs and build a
GS35b with 3kv on it- you won't get the performance you expect. As for me,
I'll stick with 4400v, which is 146% out of rating. BTW, there sure are a
lot of "out of spec" GS35b amps out there. Must be Communist tube quality
control.
73 Dave N3DB
> On Tue, 15 Dec 2009 21:22:38 -0500, "David H Craig"
> <davidhcraig@verizon.net>
> wrote:
>
>> I guess empircal evidence isn't germain to this discussion....
>> must
>>be flat-earth "theory." I have some PE friemds that run close to 5KV on
>>the plate of a pair of GS35Bs on 50 MHz... again. I assume it irrelevant
>>to
>>the "theory" gods.
>> Dave N3DB
>
> REPLY:
>
> You are right, it is not relevant and I'll tell you why.
>
> Manufacturers often make production runs of a particular part which can
> and do
> vary slightly from one run to another. Just because one run of a part
> will
> withstand say, 133% overvoltage, does not mean the next run will, even
> though
> all parts meet specs. Wise designers know this and stick to the specs.
>
> 73, Bill W6WRT
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