Author Topic: Help identify keyswitch used in Intel SDK-85 microprocessor trainer, please.  (Read 1146 times)

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Offline Bradinladera

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Howdy, I was hoping you keyswitch brains could help me out. I have a vintage Intel SDK-85 microprocessor trainer. Two of the switches are bad. I've been trying to figure out who made them. 1977 vintage... about the time I wirewrapped my first computer (A RCA COSMAC CDP1801 - not CDP1802). Back in the day, the big keyswitch mfgs were cherry, keytronic. Maybe some grayhill. I can provide internal/external photos. Non-sculpted keycaps are changable. 0.625" square. Inside there is a truncated conical spring-4.5 turns, and a phos-bronze cantilever beam that makes contact on one corner. I'd really like to find replacements, but if I can't, I'll hide a Omron B3F style switch inside. I appreciate the help. Brad

I've buried a photo (second one) in an ebay listing... sorry, not up to speed on photo-hosts, yet. Location is:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110883361981&ssPageName=STRK:MESE:IT#ht_500wt_1378