Hi,
Me too.
I would like to know the pros and cons of running the filaments of an GS-35
with Vdc , you can get small power supply of 15, 24 or 30Vdc at 10A, by
around $30 some with 3 way out, you can run 1 or 2 tubes, and relays,
separately this is far more cheap than making one or to Vac transformer(s)
for the tubes and Vdc for the relays.
Any commends?
2015-01-30 22:31 GMT+00:00 nemo zilch <nemozilch@gmail.com>:
> Seems to me it would be good to use a dc supply for the filament of the
> GS35B amp I am building. Easier to build an effective soft start circuit,
> easy to build the supply. I understand why dc is not good for tubes which
> do not have cathodes, the effective bias is different from one side of the
> filament to the other. Thus emission does not take place uniformly along
> the filament.
>
> But is there any reason not to use dc on an indirectly heated tube such as
> the GS35B? Advice appreciated.
>
> Bob W4AOS
>
>
> --
> ==========================================================
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
--
*73 Nuno CT2IRY*
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|