Ancient transistor ?computer board (Peter Van Peborgh)
nw.johnson at ieee.org
Tue Jul 7 14:09:39 CDT 2020
I just copied the email to a friend who was at CDC ad he says they were
from the CDC3100.
Nigel Johnson, MSc., MIEEE, VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591 nw.johnson at ieee.org
On 07/07/2020 13:29, Paul Koning via cctalk wrote:
>> On Jun 18, 2020, at 4:14 PM, Peter Van Peborgh via cctalk <cctalk at classiccmp.org> wrote:
>> OK, now here are some pics that should be available to everybody. I hope.
>> Smells of (early) 1960s transistorized.
>> No helpful marking apart from
>> * "GATE JJ01" on SIDE A. (components).
>> * "C NT OL DATA" on side B (solder traces).
>> Big transistors are Motorola "180376008". Also, any ideas what the "246 636
>> B" boxes are, they have four legs?
>> A curse on TinyURL and praise to Camiel Vanderhoven.
> Since CDC was mentioned I forwarded the question to a list of CDC people and CDC system hobbyists. Here's a reply that may be useful:
>> On Jul 6, 2020, at 8:59 PM, Joe Cychosz <3ksnn64 at ecn.purdue.edu> wrote:
>> Originally I said not CDC but I found this on ebay.
>> I had seen boards like this earlier and have a few but they are LEC (lockhead electronics corporation). Interesting this one has lec on 1 side and cdc on the other side. I suspect CDC manufactured these for LEC. CDC could have been secondary contractor for Lockhead on a government project.
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