K7ITM wrote:

I think he means to buy some fixed caps in the range 1-50nF, not a
1-50nF variable. (Though in this forum, maybe he does mean the
variable!) The fixed caps could make some sense. Maybe put them on
dual stackable banana plugs, and plug together whatever value is
desired.


You could use a solid state analog mux IC to switch capacitors at
those frequencies. Maxim, Analog Devices and others make a wide
selection of these chips.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida