A conversion of a type 42 amplifier into an 80 meter MOPA. The question is what type of miniature tube?

I used to build 6AQ5 MOPA's in my pre-solid state QRP days.

Mike N2MS

On 06/21/2024 8:57 PM EDT B. Smith <[email protected]> wrote:

Mystery circuit. See attached.
Not my construction but obviously home brew.
K4CHE

______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html