Hey All,
I recently picked up a beautiful 1920's variable cap mounted in a heavy oak side sloped enclosure. The cap , dial and panel look almost like new.
The downside was that it only topped out at 250 Pf , not really high enough for any of my "serious" uses. The inductor for the bottom of B'cast is 400 uH (!) of #28 rectangular five point spiderweb.It looks more like a SAILBOAT than a spider's web

. Space was extremely tight. It's wound on a small sheet of vanished writing pad thin cardboard. Basically I "tried" to violate EVERY rule of good crystal set building (re L/C ratio, coil shape, coil form material , var cap insulation being bakelite, etc, etc).
I may try a few outboard tricks to "sort of" help it, but don't expect too much other than locals here.
But it WILL be a NICE piece of "eye candy" with nickel binding posts, cotton wire, etc ,etc. Everything is being done with 1920's material and look.
My bedside shelving is small and already mostly packed up with gear , but this rig will be small and should fit . I'm thinking of a fun little single dial radio for the local big guns on an indoor short wire, which is fine.
Years ago I smelted my own "home brew" lead sulphide material by melting lead and rapidly working in raw sulfur. It instantly burst into flames and had to be blown out like a big birthday candle.The resulting material was black and ugly- NOT pretty and sparkly like the silver bearing "steel" galena " that I've also used . But BOY, was it HOT- very sensitive and easy to set . Maybe I try whipping up another batch in a small metal cup for use on this set.
K