807 Tube Audio Amplifier Schematic
Home » Audio Tube Amps » 807 single ended tube amps. So I focused to build a tube amp with two parallel 807's per channel in a cathode follower connection, wired in tetrode - class A, fixed bias. 807 parallel single ended amp schematic. A 30-W tube amp using two 807 power tubes in push-pull arrangement. Gm epc parts catalog. Schematic from David Sarser & Melvin C. Sprinkle (November 1949). This entry was posted in Amplifiers, Tubes and tagged Amplifiers by matthias.
September 16th 04, 10:27 AM |
'Andrew VK3BFA' wrote in message om.. A subject got sidetracked a while ago, with numerous people getting 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 - found one reference to 4 of them in // giving 250 watts - getting there , but a bit more power out, perhaps? - any pointers to info or sites - there MUST be a use for these things, I have been hoarding them for 30 years now! 73 de VK3BFA Andrew About 25 years ago a place was maiking 27 mhz CB amplifiers using them in combinations of 4 to 12 of the 1625 tubes, the 12 volt version of the 807. They would put out about 25 watts of carrier for each tube used. The circuit used was push pull. It seemed to be a copy of a design in a very old QST (maybe a 50's version ) design . I don't know how clean the output was but the amplifier sounded fine on the receiving end. I would guess that for ssb you could push the output to 3 or 4 times this ammount. |
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