[GreenKeys] Fairchild (Bunnell) tape winder

[Jones, Douglas W]

I just finished bringing a Fairchild clockwork tape winder into useful shape.  It came to me with a broken stop arm and a reel to handle 7/8" wide 6-channel tape.  I repaired the stop arm and widened the take-up reel to handle 1" tape.  The latter required turning new spacers and a new hub for the reel, after verifying that Bunnell made the same reel for various tape widths.  I think the two most technical lessons I learned were a) how to turn a spherical end on the hub to match the original, and b) how to make a ball-lock mechanism.  The write-up is here:
-- https://homepage.divms.uiowa.edu/~jones/pdp8/UI-8/bugs.shtml#83

There are photos attached to the write-up, including photos of the mechanism, repairs, and manufacturing of parts.

The winder was thrown in by Jackson Typesetting when I got a pair of their BRPE punches.  Pairing a Fairchild (Bunnell) winder with a BRPE punch turns out to have been fairly common.

             Doug Jones