Hi Conrad, the four finger grid grounding may be there for the purpose of
neutralizing the plate to cathode feedback path.
Sort of like you may have seen individual fingers removed from fingerstock
to create a small inductance from grid to ground.
I have seen many 8877 2m amplifiers that use this technique.
73,
Gerald K5GW
In a message dated 6/15/2015 7:09:42 A.M. Central Daylight Time,
g0ruz@g0ruz.com writes:
I have a grounded grid 3CX800 2m amplifier that needs some TLC. One of the
most alarming things is that the grid is grounded by 4 small pieces of
fingerstock that has seen better days. I thought that I would remedy the
situation and so I am looking for a grid collet or the SK1900 assembly. I have
just moved to the Netherlands and as yet have not learned where I can buy
suitable fingerstock that can be formed into a rig.
Any help would be appreciated.
73
Conrad PA5Y
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|