17 Apr
2001
17 Apr
'01
2:24 p.m.
-----Original Message-----
From: Jerome Fine <jhfine(a)idirect.com
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org Date: Friday, April 13, 2001 5:18 PM
Subject: Re: My Collection
the
Marian Capel
wrote:
PDP8/F with TU56 and DSD440
PDP8/A with TU56 and RL01
VT100, hacked about to contain an 11/23, with external ST412, runs RX11.
Anybody has some RT11 manuals available.
Jos Dreesen
Jerome Fine replies:
Interesting collection. I had not realized that DSD made a controller for PDP8, just for the PDP-11. Also I am really surprised
that DEC made
an RL01 controller for the PDP8.
As someone else mentioned: the RL01 only fits to the 8/A. The DSD440
controller for omnibus will have to be made from the schematics in the
manuals..... Luckily i have an omnibus experimental board. But currently the
DSD fails it's selftest...
AS for your VT100, it sounds like you might have a VT103 which was a
standard
DEC product. Does it use a dual 11/23 but have added
a 3rd party MFM
controller
with its own boot ROM or are you using a quad 11/23 and
an RQDX1?
The system is definitly a hacked VT100 : it contains an M8186 ( dual 11/23?)
a RQXD1, (with a possible custom boot prom), a M8044 32 KMOS memory board ,
itself hacked to contain 256K,a M8043, a third party NC550 programmable
clock and a DSD440 controller card. The system boots of the ST412 into RT11.
The system is in a very hobbyist state...
Of course the VT100 also contains a second powersupply.
Also, I am not surprised, but no one seems to consider
software as part
of their collection
It certainly is, but how often does a system you've pulled from the dumpster
contains a matching suite of software ?
Jos Dreesen