>How do you measure grid circuit resonances? It's easy in the anode circuit
>(big parts, lotsa lead), but have never had much success with the grid. I'm
>sure it's because I try to build them all like they were GHz range amps,
>and there is virtually no lead length to couple my GDO to. The technique
>must work, as I have built a couple HF amps that were *completely stable
>under all conditions that I was aware of*. However, it bothers me that I
>just *shotgunned* it and don't really know where the resonances are. How
>would you do it?
Larry,
You can never go wrong having leads as short as possible. Building an HF
amp with GHz techniques is a great way to go. Can't really go wrong
there. While it doesn't guarantee stability, it sure takes a big step
towards it.
73,
Jon
KE9NA
-------------------------------------
Jon Ogden
KE9NA
http://www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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