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 ;-)

--
Gregg t3h g33k
"Ratings are for transistors....tubes have guidelines"
http://geek.scorpiorising.ca