Any info on a Western Peripherals DC-230 disk controller?

Jay Jaeger cube1 at
Tue Mar 16 11:23:28 CDT 2021

I may have a little info - but the info is in storage, and it is just a 
"Western Peripherals Instruction Reference Card", apparently referring 
to the DC-230, PDP-11 and TC-130 (the latter being a tape controller, 
for which I do have some doc.)

Once the weather warms up again - say, maybe this weekend, I'll trot off 
to storage, bring it back and scan it.

Back in the 1970's the UW Madison CS Department's 11/20 had a 3rd party 
disk controller of some sort - one pack removable, one fixed, but I 
don't remember who made it (might have been Wangco).


On 3/12/2021 5:02 PM, Josh Dersch via cctalk wrote:
> Any ideas what this disc controller is?
> Can't find much about this on the 'net, other than that it was a controller
> for Diablo/Pertec style drives -- no idea if it's an RK11 clone or
> something else entirely. Looks to be suitable for a PDP-11/20 given the
> little notch missing from the side there, and the lack of a separate power
> harness for the backplane.
> - Josh

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