building core

From: Chuck McManis <cmcmanis_at_mcmanis.com>
Date: Sat Apr 24 12:13:05 1999

Ok, one step closer. The description of core in the PDP-8/a miniprocessor
users manual shows the wires going straight through the cores. Is this
correct? I'd expect the wire to make one or two turns around the core so
that the magnetic field it induced would be "inside" the torroid. Comments?

What about driving voltages? I've got a +/- 36v _at_ 3amps supply here, the
PDP-8 uses its 15 volt supplies. I'm building a simply push-pull direct
coupled amp out of a couple of transistors to send the signal that Allison
drew. I'm using a Parallax BASIC Stamp to generate the waveforms (I could
use the HP but then it wouldn't be portable)

Sense wire? Straight through the core or also with a wrap?

--Chuck
Received on Sat Apr 24 1999 - 12:13:05 BST