id these weird ics?

From: Richard Erlacher <edick_at_idcomm.com>
Date: Sat May 4 21:46:05 2002

Well, the originals of some of the flight hardware that was done back then was
wirewrapped using those thick ww panels. Those boards don't match the ones
I've had lying about here, but the generation seems to be about the same. The
ones I have use inserted pins rather than sockets.

PC boards weren't considered reliable enough for space flight applications by
some back in the '70's, but those sockets would never have made it into space.

There are a couple of telecom companies located in that area that might be
their originator. If you can find out anything about what Strobmerg Carlson
was doing at their Lake Mary facility back then, if it even existed then, you
might learn something.

The boards I'm referring to are 1/8" thick, have about 122 contacts per side
(top/bottom) but only one edge connector and yes, they may actually be 7"x8"
rather than 8"x9", but they're clearly not the same. Mine are full of early
(VERY early) 4000-series CMOS. I'd say you're looking at company stock
numbers, which might be what you'd find in telecom equipment of the time,
since they used the same parts in all their designs, but each PBX was wired
differently, so considerable benefit was had from the stock-number-labelling.

regards,

Dick

----- Original Message -----
From: "Joe" <rigdonj_at_cfl.rr.com>
To: <classiccmp_at_classiccmp.org>
Sent: Friday, May 03, 2002 11:57 PM
Subject: Re: id these weird ics?


> Hi Dick,
>
> At 08:21 PM 5/3/02 -0600, you wrote:
> >The things really aren't bugs, Joe. They don't have legs. I know I've
> >thought of them as being alive at times, too, but they just might be from
> >Intersil. Are these on rather thick (1/8") nominally 8"x 9" wirewrap
boards
>
> No, the board is about 1/16" think but it has thick WW sockets. The
plastic part of the socket is about 3/8" thick. Actually they're not even DIP
sockets just single rows of 25 sockets. There are two 25 position contacts
placed end to end in 22 rows. The board has "Scanbe" etched into it with no
other markings except Y/Y coordinates, Vcc, Gnd, a part number (11399), etc.
It has only one connector, a 120 contact edge connector (60 contacts per
side). The board measures 7" x 7 3/8".
>
>
> >with lots of connector contacts on both sides, and lots of 16-pin DIP
layouts
> >on the boards? Are there functional names stamped on the boards, like
Buffer
> >A, Adder, ... things like that?
> >
> >You got 'em in the Orlando area, right?
>
> I got them in Melbourne. About 60 miles from Orlando. Sounds like you
have a GOOD idea of what they are.
>
> Joe
>
> >
> >Dick
> >
> >----- Original Message -----
> >From: "Joe" <rigdonj_at_cfl.rr.com>
> >To: <classiccmp_at_classiccmp.org>
> >Sent: Friday, May 03, 2002 5:06 PM
> >Subject: id these weird ics?
> >
> >
> >> Today I picked up a wire wrap card with some strange ICs. They're 16
pin
> >dips with white ceramic bodies and gold lids and legs. They have the
numbers
> >7552-1C and 7350 on them. I believe the 7350 is a date code. There are
other
> >ICs on the card and they're all date coded to 1973. There's also a note on
the
> >board that says that it was modified on 7/25/74.
> >>
> >> There's also a trademark symbol on the ICs that looks like a black box
> >with a lower case "i" showing through in gold. I don't think I've ever
seen
> >this trademark before, does anyone know what company it's for? Anyone know
> >what the ICs might be?
> >>
> >> Joe
> >>
> >>
> >>
> >
> >
>
>
>
Received on Sat May 04 2002 - 21:46:05 BST