IBM 4331 Mainframe 3 phase converter
curiousmarc3 at gmail.com
Thu May 4 01:26:27 CDT 2017
Thanks, that looks just about perfect. Solid state, true sinusoid 3 phase, 30A continuous but can do 140A for 4 seconds - seems made to power a big bunch of vacuum column tapes.
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Reply-To: Bob Rosenbloom <bobalan at sbcglobal.net>, "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Date: Wednesday, May 3, 2017 at 10:04 PM
To: "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Subject: Re: IBM 4331 Mainframe 3 phase converter
I use a solid state one, an older version of this:
Bought on ebay quite a few years ago.
I also have a small Phoenix rotary phase converter, also from ebay. This
one seems to have unbalanced outputs.
I believe it is for motor loads only.
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