Thanks Cindy- Unfortunately those won't work :(
On Fri, Jul 10, 2020 at 10:42 AM Electronics Plus <[email protected]> wrote: > I have a number of keyboards with Micro Switch ST switches, but no SD. > Does anyone still use old Memorex or Telex keyboards? > > -----Original Message----- > From: cctech [mailto:[email protected]] On Behalf Of Ian > Finder via cctech > Sent: Thursday, July 09, 2020 11:34 PM > To: [email protected] > Subject: In search of 4B3A Microswitch Keyswitches (for a restoration, not > a keyboard collector!) > > I know what you guys are thinking- no, this isn't for a keyboard collection > or some modern build or some other nonsense like that. > > I have a friend who is restoring a fairly interesting and historically > significant vintage computer- a and subject to what appears to be a > batch-related encapsulation failure on the proprietry hall effect sensors, > but could have been some other trauma, around a little over half of them > are bad. > > The correct SD-series replacement switch would be the 4B3A- > > *** These can allegedly be found on some of the Diablo printing > terminals.** > > It is possible other switches ending in ***A could be made to work with a > bit of labor and disassembly (swapping the fairly brittle sensors). > > I am not a keyboard expert but I have learned that you can remove a key on > some of these microswitch keyboards and read the model fairly easily. > > Please let me know if you have a lead on a donor for these switches. They > will be put to good use, and you can reply to me off list for more details. > > Thanks, > > - I > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > >
