geekhack
geekhack Community => Keyboards => Topic started by: Bradinladera on Sun, 10 June 2012, 23:36:37
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Howdy, I was hoping you keyswigh 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 (An RCA COSMAC CDP1801 - not CDP1802). Back in the day, the big keyswitch mfgs were cherry, keytronic. Maybe some Grayhill, C&K, Alco. 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 buried a photo in an ebay auction I'm running... photo 2:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110883361981&ssPageName=STRK:MESE:IT#ht_500wt_1156