[Boatanchors] "Sweep Tube" That Can Handle 1 KV on Plate?

Bill Cromwell wrcromwell at gmail.com
Mon Oct 21 21:13:19 EDT 2013


On 10/21/2013 08:54 PM, David Stinson wrote:
> Is there such a thing as a sweep tube that can handle 1000 Volts
> on the plate?   Best if it has 10 to 14 Volt filament, but will work
> with other voltages.
>
> 73 DE Dave AB5S
>
Hi,

I've heard of some people running 1000 volts on the plates of 6KD6 
tubes. Those have large envelopes and apparently the spacing to handle 
that. They must be running on the ragged edge and might not tolerate 
long tuneups. I think they might be fairly expensive but I haven't 
looked lately. I remember a project that sucked a quarter kilowatt out 
of a pair of them. Maybe that was DC input.

That might be a good way to turn a 'spensive (maybe scarce) tube into 
scrap real quick. -krinkle- What are you building, Dave? -zzzzapp-

73,

Bill KU8H


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