[sdiy] name that chip?

[patchell]

steven_thomas wrote:

> Hi People..I have a couple of metal can type IC's I salvaged from some old
> (70's?)
> lab equipment. They have 12 leads on them (grouped as 4x3) which made me
> think they are quad
> matched transistors perhaps?..but my attempts to verify this with my
> transistor checker failed.
> Anyway the chips are marked:-
> 8922
> EHOS-100AH
> USA
>

    Well, whatever it is, it was made in the 22nd week of 1989, so, it is not
very old.  The package you describe sound like one that was very commonly used
to house small hybrid circuits.  Is the can on the oder of magnitude about 1/2
of an inch in diameter?  If it is, it is probably a hybrid IC.  The rest of
the part number makes no sense to me.

>
> ring a bell with anyone? websearches drew a blank.
> cheers
> steve thomas
>
> Synth-DIY pages:-
> http://monopole.ph.qmw.ac.uk/~thomas/synthdiy/index.htm

--
 -Jim
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