[sdiy] Old Motorola parts ID

[John L Marshall]

MC251G = ???
MC353G= half adder MECL
MC355G=5 input gate expander MECL
MC356G=3 input OR/NOR gate MECL
MC357G=3 input OR/NOR gate MECL
MC358G=AC coupled J-K flip-flop MECL
MC359G=Dual 2 input NOR gate MECL

Take care,
John

Pacific Northwest Synth meeting September 25th.

----- Original Message -----
From: "Colin Hinz" <asfi at eol.ca>
To: "Synth-Diy" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, July 09, 2004 11:17 PM
Subject: Re: [sdiy] Old Motorola parts ID


> On Wed, 30 Jun 2004 mirwin at qouest.net wrote:
>
> > Hi List,
> > Recently obtained a box of some truly vintage Motorola chips - datecodes
> > appear to be 1964 and 1965 (this is believable since a few tunnel diodes
> > were also included)
> >
> > The chips are MC353G  MC355G  MC356G  MC357G MC358G  MC359G
> >
> > These are all in gold-plated metal can packages, not DIPs, most having
> > 10 pins.... with that datecode they are certainly not BIFET op amps.
> > Anyone have any idea what these are? Op amps perhaps? RTL?
>
> Any luck with this? I've got a similar situation -- a couple of MC251G
> ICs, which like yours are in gold-plated metal cans with 10 pins, and
> date-coded 1965. I've no earthly idea what they are, either.
>
> - Colin Hinz
>   Toronto, Canada
>
>