Electronics > Beginners
recently obtained a germanium part
soldar:
OC71 and AC126. I remember them like it was yesterday and probably still have a few lying around.
Gyro:
Ah, the joys of scratching the paint on the side of an OC71 and finding out whether you'd scored a cheap OCP71 or just a white paste filled one. :)
Ian.M:
Then there was the joys of trying convert an OC71 to an OCP71 by trying to centrifuge the white paste down into the bottom of the envelope to get it clear of the junction! ;)
bob91343:
I am impressed with the number of those who still have germanium parts. I recently repaired an HP counter that had a shorted 2N404. As it happened, my hoarding aspect meant that I still had some stock of the exact part. The counter has been working great for a while now. Model 5245L.
I have several drawers labeled Obsolete Transistors that include germanium as well as early silicon. I am mentally unable to toss them, although I don't imagine they will ever get used.
A friend recently obtained a couple of brand new CK722s in their original packaging. Those were, to my knowledge, the first commercially avaialbe transistors. Most of them wouldn't work.
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