4 Nov
2010
4 Nov
'10
5:14 p.m.
The remains ( mostly just the PCB's ) from an early Fairchild Sentry test system were
junked today.
The PCB's are brimming with early ( 1974 datacodes ) Fairchild TTL ic's. ( (9xxx
and 93xx )
Also ECL of course, but I don't do that !
Any worth looking for, in particular w.r.t. to keeping old PDP's running ?
Jos Dreesen
4 Nov
4 Nov
5:24 p.m.
New subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
On Thu, 4 Nov 2010, Jos Dreesen wrote:
Date: Thu, 04 Nov 2010 22:14:44 +0100
From: Jos Dreesen <jdr_use at bluewin.ch>
Reply-To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
;
Subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
The remains ( mostly just the PCB's ) from an early Fairchild Sentry test
system were junked today.
The PCB's are brimming with early ( 1974 datacodes ) Fairchild TTL ic's. (
(9xxx and 93xx )
Also ECL of course, but I don't do that !
Any worth looking for, in particular w.r.t. to keeping old PDP's running ?
Jos Dreesen
Put them back together to make the Sentrys 24 bit CPU?
Probably rarer than most PDPs...
Peter Wallace
5:35 p.m.
New subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
On 4 Nov 2010 at 22:14, Jos Dreesen wrote:
The remains ( mostly just the PCB's ) from an early Fairchild Sentry
test system were junked today. The PCB's are brimming with early (
1974 datacodes ) Fairchild TTL ic's. ( (9xxx and 93xx )
Also ECL of course, but I don't do that !
Any worth looking for, in particular w.r.t. to keeping old PDP's
running ?
Dunno about that, but do you have any documentation on the CPU
itself? I've been looking for some time now...
--Chuck
6:35 p.m.
New subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
The remains ( mostly just the PCB's ) from an
early Fairchild Sentry test
system were junked today.
The PCB's are brimming with early ( 1974 datacodes ) Fairchild TTL ic's. (
(9xxx and 93xx )
Also ECL of course, but I don't do that !
Any worth looking for, in particular w.r.t. to keeping old PDP's running ?
Very few TTL chips are actually rare, so the boards are probably more
important whole than as parts. MECL III parts (MC16xx) are getting a
little scarce, however. MECL I and II are getting very scarce, but by
1974 they were obsolete and out of fashion.
There is a very small community of test equipment collectors out there
that might want these.
--
Will
6:44 p.m.
New subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
On 4 Nov 2010 at 18:35, William Donzelli wrote:
Very few TTL chips are actually rare, so the boards
are probably more
important whole than as parts. MECL III parts (MC16xx) are getting a
little scarce, however. MECL I and II are getting very scarce, but by
1974 they were obsolete and out of fashion.
9400 series Fairchild TTL Macrologic chips are fairly uncommon, but I
don't know if this design used them.
--Chuck
10:48 p.m.
New subject: Early Fairchild Sentry scrapped, early TTL IC's worth preserving ?
On 11/4/10 5:14 PM, Jos Dreesen wrote:
The remains ( mostly just the PCB's ) from an
early Fairchild Sentry
test system were junked today.
:-(
The PCB's are brimming with early ( 1974 datacodes
) Fairchild TTL ic's.
( (9xxx and 93xx )
Also ECL of course, but I don't do that !
Any worth looking for, in particular w.r.t. to keeping old PDP's running ?
Any Signetics 8000-series stuff, like 8263s or 8267s? =)
-Dave
--
Dave McGuire
Port Charlotte, FL
5080
days inactive
5081
days old
5 comments
5 participants
participants (5)
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cclist＠sydex.com -
jdr_use＠bluewin.ch -
mcguire＠neurotica.com -
pcw＠mesanet.com -
wdonzelli＠gmail.com