A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would like all the PA0FRI mods done to it.
See
This is no big problem, as most of the mods are common sense and they are what one would normally do to an amp.
However, there is one mod that strikes me as odd.
He suggests cutting the grounding wires on VC1, the plate tune capacitor, and running a thick wire or coax from the cold side of VC1 to a ground point at the base of one of the 572B sockets.
This seems very odd to me. I don't see how this would enhance stability, having that grounding wire running all that way.
Every amp I have seen or built, has the cold end of the capacitor bonded to the nearest point on the chassis.
Should one be doing this mod? My feeling is that it should be left alone.
Opinions appreciated.
Thanks, Alek.
VK6APK
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