Which is why I was considering the use of axially operated
banana-plug-like switches which would then exist in-line with the
wiring, and be operated by fishing line (in a sort of pull-in/pull-out
mode).

Knife switches of sufficient mechanical movement would also serve
to reduce capacitive coupling when open. Now that I mention it, I
do seem to remember discussing this before, especially with regard to
springy brass for knife switch contacts.

"Reg Edwards" wrote in message
...

"Airy R.Bean" wrote -
Picking up a project that has been put down for 6 months - has
anybody got experience of manufacturing their own ATU
switches out of brass, either as knife switches or else as
ginormous banana plugs which then engage axially with
a sliding action?

The trouble with as many as 8 single-throw, high-current, high-voltage
switches in a tuner, is the stray inter-component wiring and inductance
and
capacitance they introduce.