29 Nov
2010
29 Nov
'10
5:48 a.m.
I was cleaning up the estate of an MIT prof, and came across some
Philco transistors with odd markings that I suspect were made for IBM.
Generally, TI made the transistors for IBM, but I have seen a few SMS
cards with Philcos on them. Philco transistors look a bit like bullets
- about 1/2 inch long, and maybe 3/16 inch diameter, metal with a
rounded top. Often the leads are insulated, as the spacing is very
tight.
I do not have any SMS cards with Philco transistors. Does anyone (CHM
1401 crowd?) have any they could inspect for me? I would like to know
the numbers printed on the case.
--
Will