Note in passing: "Catwhisker" is also a reference to the wire contact of and eventually the entire early semiconductor device, a rectifier or diode used as "detector" in early earphone radios

But here's something that isn't generally known: In 1930 the year I was born an ingenious fellow inventor added a second catwhisker, devising what was actually the first point-contact transistor. However it was not recognized as such until decades later. This patent is so obscure that unless you're much more adept than I at Googling you might spend all morning attempting to confirm it

Part of the difficulty arises from five or six different spellings of "catwhisker" and partly on Mac's massively incompetent search algorithm but I guarantee if you ae more persistent than I you will find it

Coincidentally as if to confirm Mac's software incompetence he doesn't recognize "ae" above as a misspelling of "are"



dalehileman