On 07/25/2019 07:40 PM, Fritz Mueller via cctalk wrote:
On Jul 25, 2019, at 10:29 AM, Fritz Mueller <fri...@fritzm.org> wrote:
I recently obtained a Tek 4006 from eBay as a repair/restoration project. It
is missing a few keycaps (both SHIFT keycaps, COPY, LINE FEED, and :/*). In
addition, one of the key mechanisms has a broken plunger. Last, the little
green paddle line power toggle power switch at the back appears to be broken.
After disassembly, I can see the keyboard assembly are marked "Cherry" and part
number is B76-07AA. I'm not enough of a keyboard wonk to know if these are still-mfg'd
cherry key mechanisms?
I'm pretty sure Cherry is not still making these keyboards.
But, there were a HELL of a lot of them made over the
years. There were several key switch styles in use - really
cheap plunger that spreads the contacts apart when up, a
magnet and reed switch type, a Hall sensor type, and maybe a
capacitance type. The key switches should be able to be
replaced fairly easily. Special keycaps will be a harder
problem to solve.
Jon
