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Roger (K8RI) · August 21st 07, 09:11 AM posted to rec.radio.amateur.homebrew

On Mon, 20 Aug 2007 06:29:52 -0700, wrote:

It's that mad time of year.

Wanting to move up from my current Metron mobile amp what thoughts on
basic layout of a 14v DC powered amp that could run the full legal
limit?

Would you run say, 16 Toshiba 2SC2879 devices (within their total
dissipation specs) to keep IMD halfway reasonable or would you
consider an on-board switcher PSU up to say 80-100v to use some more
modern FET's. Is this at all feasable?

Of course a 'stiff' DC supply is required whichever way you go and the
extra few dB in signal is questionable as to whether it's worth all
the trouble.

I'd series the batteries for 24 volts at least. That makes a much more
manageable system.

I'm currently running a KW PEP out with just 4 transistors.

I think a Hi-Q antenna would handle the power so that's not a concern.

Your thoughts on "Son of Metron".

Phil G4ZOW