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I built the 6V6 oscillator rig with my son N2PNA when he first got his HF
license. We finished it in 2 days on a Thanksgiving break from school. The
first day, he worked VE3 Canada all the way down the east coast to Florida.
Lots of fun!
This rig belongs to another ham. I helped him get it stabilized. It was
oscillating. He now uses it with a nice Hallicrafters VFO. It uses a 6AG7
and a 6L6 for about 18 watts out on 80 meters. Plate voltage is 410 V
to take advantage of the bigger tube.
Do not exceed 300 V on the 6AG7 plate.
See 6AG7 specs and information:
https://frank.pocnet.net/sheets/201/6/6AG7.pdf
https://www.frostburg.edu/personal/latta/ee/6ag7amp/6ag7tube/6ag76ag7tube.html
Efficiency is better with the buffer
stage. Chirp free on xtal or VFO. He is planning to add 40 meters with a
plug in output coil. It has pi network output for easy matching instead of
link coupling.
I plan to build one for myself when I have a chance.
Check out these pages for more information. This correct 6L6 information is not found anywhere else on the web. Further, there is a lot of inaccurate information out there which is explained. Before you build, read the specs!
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