H7821 power supply in MicroVAX 3100, SCSI disk enclosures and others

Adrian Graham binarydinosaurs at gmail.com
Fri Jan 31 08:13:05 CST 2020

On Fri, 31 Jan 2020 at 13:24, Peter Coghlan via cctalk <
cctalk at classiccmp.org> wrote:

> The recent discussion on BSC protocol prompted me to dig out my Microvax
> 3100
> with DSH32 synchronous serial interface.  It had been idle in storage for
> several years and it wouldn't power up, only giving a brief flash on the
> diagnostic LEDs and a quick twitch of the fans.  There was a slight smell,
> like
> the stale air that comes out of a deflating tyre.


Oh hells, thanks for the heads-up. I've got quite a few of those that have
also been in storage for several years. Time to add them to 'The List'

Adrian Graham
Owner of Binary Dinosaurs, the UK's biggest private home computer
t: @binarydinosaurs    f: facebook.com/binarydinosaurs
w: www.binarydinosaurs.co.uk

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