Sources for Replacement diode for Struthers Electronics TS-1285/URM-120 h-f pickup
 

Hi, all concerned:

A while ago, several people were kind enough to send me info on possible
sources of replacement for the 1N23-sorta-lookalike diodes for the h-f
pickup, specifically, and carelessness has caused me to lose the info.

The diode needing relacement is labeled " ALPHA D4190A ".

Cursory google-ing yielded nothing useful.

The thing is a good-enough, if not excellent, device, for my purposes, and
this time I *really* want to get it operating.

Pls be kind enough to send it to me once more.

TIA & 73, Dave, N3HE