I had a thought. At 500 volts screen grid , 50 control grid , and 3 kV
on the plate I managed to get 0.4 amps out of them.
Wonder if I can come up with an easy connection using a microwave oven
transformer to supply the filament, grid and
negative HV on the filament and ground the plate and make the anode
glow!!! Grounded plate would be for safety reasons.
Lets see. That will be more than a kW to get a good red glow of say 25
watt bulb. Or better yet, a nice looking radiant space heater for the
At 08:19 AM 7/31/2007 -0700, Radio WC6W wrote:
>73 & Good morning,
> Marv WC6W
>--- Bill Fuqua <email@example.com> wrote:
> > Looking for some creative ideas for some very,
> > very low emission
> > AMPEREX graphite plate 4PR1000A tubes.
> > These are real duds but look good. These have been
> > run for over 2 years,
> > 24 hours a day but don't have the usual
> > brown discoloration inside.
> > 73
> > Bill
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
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