Anything special about converting VAX 11/780 to single phase?

From: Robert F Schaefer <rschaefe_at_gcfn.org>
Date: Fri Feb 1 13:12:21 2002

> On Fri, 1 Feb 2002, Robert Schaefer wrote:
>
>> If there are only three pins, it's strictly three phase-- time to look
>> into a phase converter!
>
> (0) Wasn't there a modification a while back that basically replaced
> the hadware that converted from the three-phase to the DC used within
> the system, this new hardware supplying the DC directly from another
> source?

On the US model, it's an even swap-- three for two. IIRC on the european
model, it required bypassing a transformer.

>
> (1) Maybe it would be cheaper to have the electric company upgrade the
> power feed to the site.

Doubt it. They would want you to pick up the cost of adding anything
(wire, transformer, etc) required to add the phase. Think 10's of kilo$'s.

>
> --
> Jeffrey S. Sharp
> jss_at_subatomix.com

Bob
Received on Fri Feb 01 2002 - 13:12:21 GMT