Gregg wrote in message news:kGe2d.33750$KU5.29372@edtnps89...
You're kidding, right?

The 807 was the most-used amplifier tube in history. It still beats the
6146 in popularity, given the time it was used. From audiophile tube amps,
to RF modulators to RF linears and class-C self excited power oscillators,
the 807 was/is there :-)

RF schematics are all over. Check Google, check the ARRL Handbook, CB
websites and pirate radio websites.

Russia and China still make it. Russian ones are the best and called
G-807.

If you want to play with an 807 at audio, for all practical purposes, it's
a 6L6GC ;-)

No, I am not kidding - if I wanted to use them at audio thats simple
enough - havent been able to find many references to them via Google -
perhaps you could post a few? - and most designs of the 50's in push
pull had bugger all output filtering so were not up to todays more
rigorous standards for spectral purity. As well, were reltively low
powered. My dilemma is with simple aerials I can hear stations 5 by 9
but they cant here me on a band where everyone is running 400w plus
with gain directional antennas. Sure, could buy a Yaesu FL2100, but
the price of tubes is outrageous (by my standards, anyway) and the
amps using 4CX series are even more so. The Ameritron stuff using
811's look better, but dont have any of them in the junk box - this IS
a homebrew website, after all.

Have built in the past with 807's, from fading memeory 2 tubes in
push pull would give about 60 watts - since most modern HF rigs give
100 watts, there is little point in doing a design like that except
for nostalgia.

I should clarify my question - they are available dirt cheap,
(sometimes free) power supply requirements are relatively modest (at
750v plate) and they are certainly more rugged and forgiving than
modern ceramic tubes.

And I know the evolution of the things, thats basic radio history.

73 de VK3BFA Andrew