It¡¯s hard to know what someone did there. ?It¡¯s a mess. ?If the B- has a safety diode somewhere and it¡¯s shorted the grid meter will respond in kind with the plate meter ( a la Ameritron) the grid meter is NOT seeing grid current is basically in parallel with the plate meter and responds on kind. ?The OP showed a photo which appeared thT the two meters were exactly above zero the same amount in idle.
On Sunday, December 3, 2023, 10:58 AM, Steve <k0xp@...> wrote:
On 12/3/2023 7:44 AM, Jim VE7RF wrote:
>
> BUT he should have NO grid current at all, when keyed, and no drive
> applied.? Something is still amiss.
>
Considering the condition of that modified amp, I wonder if perhaps the
grid current circuitry is miswired, and has always indicated something,
but the operator just didn't realize it wasn't reading correctly until
the troubles began and we began asking questions about what he was
seeing?? With wires running every-which-way, it looks like a mess, in
those pix.
And BTW, someone please remind me what problem suddenly reared its ugly
head to bring the owner-operator here for help, in the first place??
Steve, K0XP
