[AMRadio] Supply for PP 304TLs ??

Merz Donald S merz.ds at mellon.com
Fri Nov 1 11:59:06 EST 2002


By any chance is anyone running an HF amp or transmitter with push-pull 304TL tubes in the final? I have this homebrew here that uses this configuration. But the power supply it came with is in pieces and it is a mess. It was modified many times over the years by the builder and has been patched more than a Microsoft software product.

So this thing needs a filament, screen and HV supplies. I can use some of the original parts. But for the HV, I don't want to use the original design because it is built around a 230V pole pig transformer and has lots of quirky design anomalies that I can live without (Anbody need a 125 pound pole pig? It'll give you 1700 to 2200 volts all day. The only drawbacks are that it is huge and weighs a ton).

So I'd like to cheat and see how someone else is powering their rig to get some ideas.  References to complete designs in any of the popular literature would be useful too. Can anyone help?

73, Don Merz, N3RHT



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