How scarce (valuable) is core for the PDP-8?

From: Ethan Dicks <ethan_dicks_at_yahoo.com>
Date: Tue Apr 20 08:55:06 1999

--- Allison J Parent <allisonp_at_world.std.com> wrote:
> <Any idea how to estimate the gauge?
>
> You'll have to mic it once the diameter is known you can look it up give
> or take the enamel insulation.

OK. Can do.
 
> <What size nuts?
>
> Small, looked like #2.

Can you translate that to a size? I can imagine the size of a #4 nut
(I have several). I can't clearly picture how big the O.D. of a #2 would be.
 
> ...A good material for this is hypersil commonly used for transformers.

Used for the windings or the core laminations?


On the topic of core size vs switching speed, I'd always assumed the drive
to minaturize core was driven by the economics of memory density. I never
considered memory speed.

-ethan

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Received on Tue Apr 20 1999 - 08:55:06 BST

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