Use a CD4066 or a modern equivalent. I think it would work if the
ohmmeter range (balancing resistor) was chosen >> the Ron of the
switch.
I really like the coil tap switches on the radios < 1925 where the
contacts are on the surface of the control panel. Dial up the time on
four of those...
To
What about a switched R-2R Network? or use small realy's, driven by
appropriate decade countinglogic to switch individual trimmed resistors.
eric
-Original Message-
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of lai...@wcoil.com
Sent: zaterdag 9 april
