"Harold E. Johnson" wrote in message
news:IRAtl.606228$yE1.69436@attbi_s21...

"MoiInAust" wrote in message
...

"Harold E. Johnson" wrote in message
news:2bAtl.10383$DP1.7359@attbi_s22...
Find an old BC-221. Frequency meter at a hamfest.

W4ZCB

"MoiInAust" wrote in message
...
Looking for a variable condenser (capacitor to you new people) .0005
Mfd brass plates (500 pf), square law moving plates, as used in 1920s.


Thanks for the tip but that instrument was much later than the 20s. Also
I meant to say single gang.

Well, the BC-221 capacitor IS single gang, ~500 pF fully meshed and would
cost you hundreds if you bought it new today. It also has a superb anti
backlash reduction gear. I used several in a noise bridge and bought some
for $5 and one was given to me.

W4ZCB

Thanks. But looking for simple one with no reduction gear. Rather like the
ones used in 1920 crystal sets.