Is there any possibility, that "Crystadyne" originating around 1924 (you can google for it) can be the lost invention from "Robert Denk" (google for it), who built a radio without tubes in 1948. Robert invented a device which he found accidentally working, functioning in an mil. receiver in world war II. I think Crystadyne had no chance in 1924, because the tubes coming up, had a good physical basis, compared to a cat whisker.
Are there clues, that the invention of the transistor was based (not a good word) upon the crystadyne principle as a starting input to the 3 ? For me it looks like that the transistor was an "ordered" invention.
I'm just trying to built an enhanced detector circuit with a tunnel diode, which is a predictable, reproducable device, instead of a whisker.
BTW has anyone a simple circuit to measure a tunnel diode? Think to add a resitor to avoid the neg. slope and then calculate it out.
May be there is a better group to ask all this?
Rudolf Drabek (google me, only one with elecronics background)