On 3/11/12 5:12 PM, clu wrote:
I found two old Signetics chips in there. The Signetics logo is the one
used in the late 60s but I can't find any data using the part numbers on
the chips. Can anyone identify these chips (image links below)(I'm
assuming one decade counter with BCD output and a nixie driver)? I'd
like to make an unofficial BIP-8820 datasheet for anyone else out there
with these...
http://i.imgur.com/V2Cos.jpg
http://i.imgur.com/3nn1i.jpg
Those are definitely Burroughs house numbers, since the number on the PC
board under the chip in the second photo has a number with the same format.
Good luck on the reverse engineering!
--
David Forbes, Tucson AZ
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