Emulators of Classic Computers

From: William Donzelli <aw288_at_osfn.org>
Date: Mon Jan 19 15:23:08 2004

> Repair of a single core plan? Absolutely!
> The size of the beads will determine what size
> needle threaded with wire to use.
> Early planes used beads so large that you can re-thread t
> hem with sewing needles!

Core planes are (were) often threaded without needles - there just wasn't
enough room in each core for a needle once the first two (or three) wires
were strung. The wire itself is the needle. IBM invented a very simple
solution - the wire to be strung was simply pulled apart gently. At the
break was a nicley formed taper.

William Donzelli
aw288_at_osfn.org
Received on Mon Jan 19 2004 - 15:23:08 GMT