Search Posts:

RK11-D Installation

SHARE

Return to Threads

  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

Reply
  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.


Reply
  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.

Reply
  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.


Reply

Resources:


Buy a Commodore Computer Poster

Popular Topics and FAQs


  • Commodore B Series Tips and Tricks
  • Aerocomp TRS 80 M 1 Expansion Unit DDC
  • Items Wanted
  • Lobo Max 80
  • Zenith Z-19-CN
  • Prototype PET 2001 photo
  • Using Toggle Switches to Analyze Memory
  • Commodore Disk Archive Project
  • PET 2001 Prototype at Gametronics 1977
  • Jim Butterfield Photo
  • IMSAI 8080 With Processor Tech. Cutter
  • Secrecy is the keystone of all tyranny
  • Cromemco System Three
  • Northstar Horizon - Boot Problem
  • Computer History and Restoration Links
  • Commodore BX-256-80 - 8088 Co-processor
  • S-100 board testing with Z-80 ICE
  • Donner 3500 - an early portable computer
  • Digital (DEC) PDP 11/05 NC Assembly
  • Univac 1219 rescue
  • IMSAI 1.4 BASIC vs. MITS 8K BASIC
  • Fido BBS listing node list 6-13-1986
  • PDP 8e
  • MITS 88-2 SIO (2SIO) for BASIC
  • Visual Technology Inc Model 1050
  • Amiga 2500 Restoration
  • The Evolution Of IBM Computers
  • Replacement teletype print hammer head
  • Archiving and Copying Software 101
  • Computers Built 1940 - 1950
  • CBM B-520 (a.k.a B256-80 or B500 256)
  • RCA COSMAC Microkit
  • Commodore 64K C-116 Mods
  • MITS 8800b Turnmon 9600 baud
  • Catweasel, 8in and 5 1/4
  • Raspberry Pi as Gateway to Internet
  • Digital PDP11 late 1969 early 1970
  • PDP 11/40 72 inch cabinet model
  • PDP 11/40 Industrial 11 model
  • Digitial MicroVAX 3100 30 System
  • Digital VAX 4000-200
  • Commodore 64 / 1541 DRIVEKNOCK
  • Booting the System Using RL02 drive
  • PACS: Reflections by Kathleen Mauchly
  • Tele-Graphic Computer Systems Inc.
  • Commodore B Series SID Jukebox?
  • Installing Core into PDP 11/40
  • Setting Up OpenVMS 7.1 DNS CLERK
  • Felt-Tarrant Comptometer Model J
  • NextStation Color
  • Digital Rainbow (PC100-B2)
  • 1970 Compusad Compulogical Tutor
  • Archiving Papertapes Using DSI NC 2400
  • 1976 P.C.C. Features the MAI JOLT 6502
  • 1961 Beckman DEXTIR Computer
  • UNIVAC 1 and UNIVAC File Computer 1
  • Past Issues:


    PDP8rew 2102 RAM

    This image was selected at random from the archive. Click image for more photos and files from this set.