15 Jul
2021
15 Jul
'21
1:19 p.m.
From: Paul Koning <paulkoning at comcast.net>
To: Chris Zach <cz at alembic.crystel.com>, "cctalk at classiccmp.org"
<cctalk at classiccmp.org>
Subject: Re: Looking for VAX6000 items
A number of the large disk drives use 3 phase motors; RP04/5/6 are
examples as well.
Three phase motors won't run on single phase power without help from run
capacitors. (There is no such thing as "two phase power" -- 220 volts is
single phase, balanced.)
paul
The RP06 uses 220VAC single phase motors for the spindle and blower.
I converted an RP06 from three-phase to single-phase to use with PDP-10
KS10 at home. Instructions are here:
https://sites.google.com/site/mthompsonorg/Home/pdp-10/rm03-and-rp06-inform…
--
Michael Thompson