Originally Posted by
grizzly59
So are my wire wrap tools, wire, sockets, and S-100 backplanes worth something now?
I wasn't expecting to hear a discussion of wire wrap!
I've got an electro-mechanical clock that my dad bought in Germany in the 40's. It has a switch linked to the escapement that briefly powers a solenoid on each pendulum swing. The solenoid gives the pendulum a tiny push, keeping it running.
Well, in the intervening decades, the switch wore out, so I came up with a way to sense the pendulum position and apply a properly timed pulse to the solenoid.
That wasn't enough work, so I decided I needed to come up with a way to compensate for the change in pendulum length as the temperature changed. This meant I needed to measure the pendulum period with some precision, so I wire-wrapped a circuit to measure the pendulum period!
the clock:
the timer that measures the pendulum period:
the underside of the board, showing the wire that is wrapped around the posts of the sockets.
No idea whether wire-wrap tools are worth anything. I'd hate to lose my Clauss No-Nik 30 ga wire stripper, though.
Steve in Peoria