Date   : Sat, 08 Dec 2007 14:35:25 +0000
From   : adsb@... (Andrew Benham)
Subject: Black power supply

Paul J wrote:

> Could anyone shed any light on the black power supplys, how long they were
> used for, were they replaced in machines because of problems, anything
> related to the history.

My recollection was that the black power supplies were linear, rather
than switched-mode, and although weren't subject to a 'recall' were
always replaced on sight.

-- 
Andrew Benham         adsb@...       
Southgate, London N14, United Kingdom

The gates in my computer are AND OR and NOT, not "Bill"