18 Aug
2009
18 Aug
'09
11:36 a.m.
Date: Tue, 18 Aug 2009 08:16:12 +0200
From: pontus at Update.UU.SE
To: cctalk at classiccmp.org
Subject: Re: Vax 11/750 disks
I'm going back to where the 750 came from, and there is an RA81 disk
still there. It seems very bulky and heavy.. should I get it anyway?
Heavy? Yes, the RA81 weighs 67 kilos! If it is not too much, I would
get the drive (anybody wants a 16-bit RA81? :-)) hook it to the UDA50
and check the contents. Who knows what you find, perhaps VAX-11/750
diags. You can connect a VT220 to the drive (open it and locate the
DB-25 connector. Run the diagnostics. Maybe the drive is in better
shape than the RA81 you have. Swap and try to get a few euros for
the metal of the to-be-scrapped RA81. Or keep them both :-)
In the latter case, use the drive sequence cable, so that both drives
do not spin up at tyhe same time, but one after the other. Or switch
them on in sequence manually. Start-up current is> 10 Amps.
Here I though bitsavers was the authorative source,
apparently there
is more to find :)
If I need some doc which I do not have stashed somewhere, bitsavers is
my #1 spot to look for it. And I contributed a "few inches" too.
Kind Regards,
Pontus.
greetz,
- Henk.