13 Aug
2023
13 Aug
'23
1:07 a.m.
As far as i know, winchester drive selects have always been 1-4, at
least in the DEC world!
Reference MP-02259-01 RQDX3 Field Maintenance print set. Also Plessey
DCV54 manual.
I don't know about PCs- I went into teaching when the PC came out 'cos
there wasn't enough money in PCs! I was getting $90 and hour in the DEC
world and people were working for $20-30 in the PC world :-(
Nigel
On 2023-08-12 19:59, Fred Cisin via cctalk wrote:
Could y'all clarify for me,
Do you mean "drive 3" and "drive 4" of drives 1-4, or 0-3?
do you mean "DS2" and "DS3" of DS0-DS3, or DS1-DS4?
--
Grumpy Ol' Fred cisin(a)xenosoft.com
--
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
On August 12,
2023 6:35:35 p.m. EDT, Peter Coghlan via cctalk
<cctalk(a)classiccmp.org> wrote:
> IIRC I had to jumper the second MFM drive as drive 4. Presumably I
> should
> have made a twist in the cable to allow the second MFM drive to be
> configured
> as drive 3, the same as the first drive.
On Sat, 12 Aug 2023, Nigel Johnson via cctalk wrote:
From
memory, when I looked into doing this I found that the RQDX3
BA23 distribution panel maps DS2 from the contriller to all DS pins
on the B cable of one drive and DS3 to all DS lines on the other. I
never did test the theory though. I did not get a special adapter
from decromancer.
Hope it helps