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RK11-D Installation

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  RK11-D Installation by Bill Degnan - 06/27/2017 23:14
Digital RK05 disk packs
Digital RK05 disk packs. Click image for larger view.


I have the RK05 card set and backplane RK11-D.

Picture:
http://bitsavers.trailin...bus/EK-RK11D-MM-002.pdf

Cards and Backplane (minus UNIBUS cables):
http://www.technology.ni...PDP11RK11Controller.jpg

RK11-D is a 4-card backplane

RK11-D RK05 Disk Controller
EK-RK11D-MM-002
M7254 Status Control
M7255 Disk Control
M7256 Registers
M7257 Bus Control

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  RK05-D Wirewrap Backplane by Bill Degnan - 08/06/2017 23:13
RK11 Backplane Label
I traded for an RK11 backplane and the controller cards. Here is the backplane.


RK11 Backplane Label
View of RK11-D backplane wirewrap pins, some pins were bent and were straightened after this photo was taken. It's important that no wirewrap pins touch while the unit is in operation.


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  Photos Installed RK05 by Bill Degnan - 10/23/2017 23:20
While visiting the Large-Scale Systems Museum in New Kensington (Pittsburgh), PA this weekend, Dave MacGuire was kind enough to open the PDP 11/05 that had the RK05 controller set installed. I took some useful card and cabling pictures with my phone camera:

Picture 1
Picture 2
Picture 3
Picture 4

I also walked through the process of triaging an unknown-status RK05 drive with Matt Portoray. We discussed cleaning the foam, inspecting the drive head, powering up slowly with a Variac.

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  RE: PDP 11/05 and RK05 power connectors by Bill Degnan - 08/31/2018 12:18
There is one 15 and one 6 pin power connector off the RK11 backplane. The PDP 11/05 NC style chassis does not have these, so you'd be better off with the PDP 11/05 S style (BA11-K) chassis if you want to install RK05 drives on your 11/05 system. The PDP 11/35 or 11/40 chassis has plenty of power ports, the RK05 would not be a problem for these.

I picked up a RK11 backplane in better shape, here is a photo of the two I own here. Not sure why the backplane wirewrap is different.


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