Hi gents,
Thanks for the HV responses, great advice.
So I'm embarking on a reproduction of W1QWJ (sk) 6m amplifier using a 3cx800A7,
it's in the 1995 ARRL handbook. This will be my first full up homebrew tube
amp. As a general question, is anyone familiar with this design? Has anyone
reproduced something similar?
More specifically, I'm looking at the filament section and there are two caps
marked .001/500v F.T. but they have three legs, one connected to the filament,
one to the filament xfmr, and the other to ground. I assume these are .001 uF
Feed Through caps? What is the purpose of these? Why 500v, that seems
extreme for a 13v filament voltage. Also, I see the filament is AC, any
reason? I was thinking about using the filament xfmr to power other portions
of the control circuit, but I would need DC to do that. Do you see any issues
in straping on a rectifier in parallel while still powering the tube with AC?
Thanks for the help.
Paul, kg7hf
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|