[Amps] Blowing out finals on a Icom 7300 using a Ameritron AL 80B. Help Please!

[Patrick Thompson]

There is probably a small rf choke from the pi network output to ground.
The rfc is there to short hv to ground if the plate blocking capacitor
shorts. Worth looking at and a possible safety issue.

Pat. wa4tuk

On Mon, Jun 6, 2022, 5:18 PM Ron W4BIN <ka4inm at gmail.com> wrote:

>     Alton McConnell via Amps wrote:    (in part)
>
> > I suspect that we might need to find a HW 100 or 101 (tube type finals)
> to use as an exciter
> > until we get this issue tracked down.  What do professionals do about
> exciters for problem
> > amps?
> > How do you test a 3-500Z to see if it is a tube issue?
> > Are Icom 7300's compatible with AL80Bs?
> > Does anyone have any thoughts?
>
>    I think two gas tests are in order.
>
> --
>     Ron  W4BIN - Understanding is much better than
>                                        knowing how.MX
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>