[Amps] RF making it's way into a digital control box.

[Ron W4BIN]

On 1/7/25 3:28 AM, Lukasz wrote:
> I'm currently working on final touches of restoring an old military tube HF
> amplifier that has very useful mechanical memories. It's constructed in a
> way that there is no need to retune within the same ham band (except the
> top of 10m, mind this is Europe so 80m is much shorter here). Which makes
> it very nice for remote work.



> I'm thinking about adding these capacitors as 100nF or 10nF (depending
> which one will fit) smd parts right between the base and emitter the pads.
> Do you think that will work? If not, what would you do?
> 
> 73,
> Łukasz - SP4IT

   The trick is to make the input to the problem relays to require POWER to
activate them.  Feed a high current to those channels and drop the input
resistor divider down to the hundreds of Ωs.

  Ron W4BIN