....nostalgic about the boxes of old 807's they had sitting around waiting
to be used - has anyone built a HF linear using these things - and not
QRP or max 100watts ....

I can't find it right now, but somewhere I have an article from a ham
magazine that used TEN of them (actually 1625's), with their filaments
series'd across the 120-volt mains and their outputs paralleled on one
of the lower ham bands.

I, too, have been saving them and will find the round tuit someday.

--Myron.
--
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)