Hi everyone,
It's been quite some time since I've been able to continue my hobby in electronics (life is evolving organized chaos), and even longer since I've posted. I'm to the point where I'm clearing out what I don't absolutely need and can't fit on/under one desk.
Currently, sitting in front of me on the desk, I have a small assortment of genuine Shockley diodes. (I've posted about these before, years ago.)
One of them appears to me to potentially be an experimental, hand made piece. Five others may also have been experimental.
Additionally, there's an assortment of:
(11) 4E20 M-28
(3) 4E20 A
(3) 4E20-8
(2) 4E20 M-8
(1) 4E30 A
(1) 4E40-28
(4) 4E50-8
(3) M4L2054
(2) M4L3054
(2) ST36 (The only ones with date codes - 6527)
(1) ER900
(1) Lettering is worn off, but what's still visible is: "STDXXX, MAL629", where XXX denotes unreadable text or space.
So here goes:
1) I want to see these go to people who will truly appreciate the history that comes with these pieces.
2) I'd like someone who has quality photography equipment to document them, send the info to the semiconductor museum and other places of record. Curve tracer characteristics would be fantastic, too.
Dave, if you're interested, I'd like to offer you the six unmarked ones and any others that you're interested in. I know that you'd handle them well and I 100% trust your judgement on wherever you would re-home them to if you didn't choose to keep them. If you are interested, PM me also, as I've got a question for you regarding these diodes.



Best regards to all,
Brian