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

[David Kuder]

Dang, guess I should get off my duff and upright my 3100. It's been on it's
side for a couple years since the roller base had broken wheel mounts and
my attempt at a repair just left the bottom of the chassis deformed as too
much weight got concentrated where I attached castors.

On Fri, Jan 31, 2020, 9:13 AM Adrian Graham via cctalk <
cctalk at classiccmp.org> wrote:

> 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.
> >
>
> <snip>
>
> 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
> collection?
> t: @binarydinosaurs    f: facebook.com/binarydinosaurs
> w: www.binarydinosaurs.co.uk
>