31 Dec
2012
31 Dec
'12
12:42 p.m.
> Whenever I have used any RD5n or RD3n drive with
the
> RQDX3 controller on the PDP-11, the drive always had be be DS3.
On Mon, 31 Dec
2012, Rob Jarratt wrote:
Thanks for the tip. I tried what I think is DS3 but it
seems to make no
difference, whatever I do this is what I get:
If it is not responding to DS3, then it is time to monitor the CABLE,
and see which drive select the computer is trying to use.
"Solderless breadboard"s may be crap for many kinds of circuits,
but for drive cabling, they provide a usable break-out, for watching
signals, temporarily interrupting signals, and temp[orarily jumpering
to other pins.