Re: [Amps] 3CX800 grid collet or SK1900

[Steve <g8gsq72@gmail.com>]

The grid ring on a 3CX800 is the same size as the screen ring on a 
4CX250 so you could dismantle a '250 base to get one.
I've done neutralising with grid fingers at UHF but not seen it needed 
at 2m.
Steve

> 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
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