DUA1:[MAX.MUSEUM]PDP8_CONFIG.TXT;1
Goals of PDP-8/E Omnibus project. Doc # 10195
--------------------------------
The PDP-8/E was the pinnacle of PDP-8 development. It is also the
easiest PDP-8 to restore due to its modular construction and "one module
per peripheral" design philosophy. Therefore the goal is to have a
PDP-8/E with as many of the peripherals installed as possible as a
master unit. By having this as a full, working, known-good, system, we
can use it for further testing of other machines and FRU's in the museum
collection.
The PDP-8/E can run either the OS/8, OS/78, COS, or WPS operating
systems. See the last page of 8/E brochure for details.
System 1.
This system is on show at Rhodes as the most interesting configuration.
Six ft cabinet with 16KW CPU, R/T clock, EAE, 2400 EIA console to VT100,
high speed paper tape reader, high speed paper tape punch, dual dectape,
RK05 2Mb cartridge disk, dual 8" floppies, DECtape hardware bootstrap,
RK05 bootstrap. It allows all the OS/8 software to be read off the
dozens of DECtapes in storage. The PDP-8/E also connects to Easynet via
a second KL8E at 2400 baud. (probably the only PDP-8 in the world to do
so!)
System 2. Low height Data System cab with 16Kw (so OS/78 can run) CPU,
1200 baud EIA console, with one RX01 and a PC8E paper tape reader/punch.
Nice and transportable for demos. Needs hardware bootstrap.
System 3.
Museum workhorse. Two 6 ft cabinets bolted together with 16Kw CPU, power
fail, 2400 baud EIA console, one RK05F, one RX01. Has set of D/A and A/D
modules with a real time panel (not yet checked out). Also provides
storage for other PDP-8 items and modules and 70 DECtapes etc. No
hardware boostrap. Needs TD8E and PC8E
System 4.
Classic-8 desk. This desk based PDP-8 was known as a DATAsystem 310 in
the business market, or the Classic in the Edu market. It has 32Kw, VT52
console and RX01 floppies. It can have either an 8E CPU or 8A Harris
6120 chip CPU.
System 5.
A little 8/F box with Red LEDS in working condition. Has CPU, 110 20mA
console, 8Kw. Ran OS/8 in 8K from RX01 in Jan 92. Could use half height
foreign RX01 and controller.
System 6.
Another 8/F cabinet full of spare but untested modules.
OS/8 device codes
--------------------
High speed paper tape reader 01
High speed paper tape punch 02
Console keyboard 03
Console printer 04
KP8E power fail 10
Memory extension ctrll 2N
RL01
LE8E parallel line printer 66
RK8 early disk controller 73
RK8E disk pack with RK05 74
RX8E floppy controller 75 (70-77 selectable)
TD8E dectape 77
Data break dectape TC08 76,77
Storage sizes
-------------
1 block = 256 (decimal) words= 512 (decimal) 6 bit bytes
BLOCKS WORDS 6 BIT MB
RX01 8" OS/8 494 126,464 .25
RX01 8" byte 627
RX50 5" DM2 779
RX02 8" OS/8 980
DECtape 737 188,672 .33
RKO5 2 x 3290?
RKO5J 2 x 3248 1,662,976 3.30
+-------------------------+ Main PDP-8/E cabinet
| RX01 |
| Dual 8 inch floppy | Museum picture & sign on side
+-------------------------+ of cabinet
| TD8E TU56 |
| Dual DECtape |
+-------------------------+
| PC8E |
| Paper tape Rdr/pch |
+-------------------------+
| PDP-8/E CPU 16Kw |
03/04 |KL8E 2400b EIA console+---> VT2XX & LA100 on printer port
30/31 |KL8E 2400b EIA comms | VT100 also works fine.
+-------------------------+ VT52)
| RK05 | VT05) keyboard too primitive
| 2.4Mb cartridge disk |
+-------------------------+
|Storage rack 10 DECtapes |
|115 power distribution |
+-------------------------+H960
Slot Module Description
1 (front) lamps Console
2 M8330 Timing crystal
3 M8340 EAE
4 M8341 EAE
5 M8310 Major registers)
6 M8300 Major registers) jumpered
7 ----- Chassis broken, do not use
8 M8655 2400b Ctrler 03/04 code, Berg to EIA
9 M8655 2400b Ctrler 30/31 code, Berg to EIA
10 M837 KM8E extended memory controller & T/s
11 PC8E M840 High speed paper tape Rdr & Punch
12 TD8E M868 Rev H TD8E dectape controller
13 n/a space needed by H241 ROM piggy back
15 M880 MR8E read only memory for TD8E
16 RX8E M8357 RX01 floppy controller
17 M7104 )
18 M7105 )
19 M7106 ) RK05F disk controller , 3 boards
20 M935 Bus jumpers
21 M935 Bus jumpers
22 MI8-EJ M847-YJ Bootstrap for RK05J
32......
33 KK8E M849 shield
34 MM8-EJ G111
35 H212 8K x 12 bit memory
36 G233
37 MM8-EJ G111
38 H212 8K x 12 bit memory
39 G233
40 M8320 Bus loads
Known problems:
HSR not reliable.
861B blows earth leakage - why?
DEC data system, orange cabinet
Museum item number 110
PDP-8E in Data System cab, big box with 40 slots.
KC8EA lights
KA8E M8330 CPU
KA8E M8310 CPU
KK8E M8300 CPU
KM8E M837 time share
KL8JA M8655 03/04 console 1200 baud EIA to VT100
G753 initialiser from panel switch
PC8E M840 has some extra holes being punched
M935
M935 bus jumpers to rear omnibus
KK8E M849 shield
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
M8320 bus loads
Would be great to have an RX01 Boostrap module to save toggling in the
boot. Manual boo to RX01 hangs?? RX01 and Ctrler and cable OK in green
8E so must be good. Paper tape reader won't load RIM tape. Need some
mainDEC work on CPU.
Green Lab 8/E config
Full length chassis
Lights
M8330
M8310
M8300
M837 ext memory
KP8E M848 Power fail and restart with 7007128 power cable
KL8E M8655 2400 console cotnroler
empty
M7104 )
M7105 )
M7106 ) RK05F disk controller , 3 boards
empty
empty
M935 JUMPER
M935 jumper
empty
AD8-EA M869 10 bit A/D
M885
M841
AM8-EA A231 64 chan mux
A232
DK8-EA M860 real time clock
M518
empty
M8326 interprocessor buffer
empty
buses to lowr box
K?8-EA M863 12 channel buffered digital I/O
M863
KK8E M849 shield
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
G104
H220 4 K of memory
G227
M8320 bus loads
The dual cab is main repository of PDP-8/E material, spares, DECtapes.
Fans in top of cabinets not working - no 115V transformer in cab
Need to check out power fail, LAB-8E options eventually.
Need to check out real time options with diagnostics & Basic
Needs RK05 boot but not essential as only 2 instructions
Unit needs to be turned on for 2 mins before booting at 0030 to RK8E.
Needs TD8E and PC8E to be complete.
DSD 2131 A Blue handle RX08 third party controller
Half height RX01 controller in black box could go on 8/F
+-------------+ +-------------+
| PDP-8/F | Config of | PDP-8/F |
| Red LEDS | dual cab | used to hold|
| working 8K | GREEN | spare |
| | PDP-8/E | modules |
+-------------+ +-------------+
+--------------------------+--------------------------+
| (old) Dectape lights | |
+--------------------------+ RX01 dual floppy |
| 1 10 | |
| Rack for 20 DECtapes +--------------------------+
|11 20 | |dead RK8E
+--------------------------+ Green real time |in here
|21 30 | connection panel |
| Rack for 20 DECtapes +--------------------------+
|31 40 | |
+--------------------------+ PDP-8/E |
| | |
| RK05F disk +--------------------------+
| working OS/8 SYS | BA8E expansion box |
+--------------------------+ 4 x 4Kw memory |
|41Rack for 10 DECtapes 50 | |
+--------------------------+--------------------------+
|51 60 | |
| Rack for 20 DECtapes | |
|61 70 | |
+--------------------------+--------------------------+
| | Omnibus with spare |
| | modules behind panel |
| | |
+--------------------------+--------------------------+
Davis PDP-8/I Six foot cabinet
DW8E expansion box
-------------------
just like 8/F box without panel
Could later use with a restored 8/I to get RK05J on to it.
M8320 Bus loads
M7104YA 3 jumpered modules for RK8E controller
A tech tip says these are special for the DW8E and no
use plugged into an Omnibus (drat it)
W966 home brew probably facit high speed reader
+--------------------------+
| |
| |
| |
+--------------------------+
| DW8E box with Omnibus |
| |
| |
+--------------------------+
| PC8I paper tape |
| reader & punch |
| |
+--------------------------+
| |
| PDP-8/I console lights |
| |
| 8K words memory |
| |
| |
| |
| |
+--------------------------+
On 29th May I decided to stop work on the 8/E project. Too tedious and
the final outcome not that impressive as I have OS/8 up anyway.
Status of this PDP-8/I at end May 1990.
It can be plugged into 240V. Power supplies seem OK and it runs an
increment AC routine. Attempting a TLS routing causes PC to hang.
This is very difficult restoration because of separate modules, power
supply was a 115V originally, panel lamps impossible to fix, which type
of bus did it have etc etc.
I stripped out ATL 8/I and kept all its modules on box in room. Threw
out ATL cab shell with no wheels.
Work should proceed as follows.
Check red white cable to top fan is OK
Put this cable into 115 volts
Top of cabinet fan may be buggered as I plugged it into 240 once
There is a spare fan in cabinet.
Get CPU bay OK, with little console routines
Try to repair lamps, but difficult, because double sided board.
Get 115V transformer on back and power up top fan and PC8I drawer
Plug in PC8I and get running
Load other diagnostics and focal, basic in 8K etc.
Plug in -ve I/O bus DW8E and try RX08 in omnibus slot
Try RK8E controller with cables over to onto RK05 in Green 8/E cabinet
Get OS/8 running in 8K
PDP-8/F with red LED console.
-----------------------------
Was used at 138, might have failed on p/t rdr
Has perspex top for viewing.
Slot Module Description
1 lamps LED lamps
2 M8330 Timing crystal
3 M8310 Major registers)
4 M8300 Major registers) jumpered
5 M837 KM8E ext memory controller & T/s
6
7 M8650 console controller
8 spare slot
9 spare slot
10 spare slot
11 spare slot
12 spare slot
13 M849 shield
14 G104
15 H220 4K of memory, jumpered
16 G227
17 G104
18 H220 4K of memory, jumpered
19 G227
20 M8320 Bus loads
Power supply has annoying high pitched whistle
Ideally needs hardware bootstrap and RX01 controller.
Ran O/S8 in 8K and RX on 15 Jan 92
May have problem - seems to clear location 0000 on turn on ????
Stored on top of Green 8/E cabs.
ARL PDP-8/F
Serial Number 566
Museum item number 108
Fully filled with spare but untested 8/E modules
Stored on top of ARL cabinet
2/ M8330 CPU
1/ M8310 CPU
2/ M8300 CPU
2/ M848 KP8E Power fail detect restart
M8350 long berg??? interprocessor buffer??
M8350 long berg??? ribbon cable in cable box.
M837 mem ext
M849 shield
M8326 ??
G104
4K memory
G220
M8320 bus loads
Have never turned it on.
Anpac COS-310 CLASSIC desk based PDP-8/A
PDP-8A/500 with 8A hex CPU module
Museum items 81 and 81A
M8315 KK8A CPU hex
M8317-YB Option board number 2, ext mem, PF, boot for RX01
M8316 Option board number 1, SLU, RTC, prog console interface
G650
H219B 16K 12 bit core memory
G650
H219B 16K 12 bit core memory
M8357 RX01 controller
RX01 dual floppy drawer
M8365 LA180 LC8P parallel printer interface
simple switch console (into M8316 if no programmers console
programmers console plugged into M8316
20mA (cable) to 240 v VT50
861B power controller
+---------------------------++-----------------+
| M8315 8A CPU ||M9200 bus loads |
+---------------------------++-----------------+
| M8317-YB boot, pf |
+---------------------------+
| M8316 console SLU |
7 Hex slots +---------------------------+
| |
+---------------------------+
| |
+---------------------------+
| |
+---------------------------+
| |
+----------------------+----++-----------------+
| | | |
+----------------------+ +-----------------+
| | | M8357 floppy |
+----------------------+ +-----------------+
| M8357 floppy | | 8E CPU |
5 quad slots +----------------------+ +-----------------+
| | | 8E CPU |
+----------------------+ +-----------------+
| | | 8E CPU |
+----------------------+ +-----------------+
Power supply
861B Controller
2. Ina's WS200 PDP-8/A
Huge box with 8E CPU and 2 power supplies at rear. different box to 1.
and 3. Museum item no. 109. Interesting config - lots memory with 8/E
CPU modules
DKC8-AA M8316-YB Option number 1 SLU, RTC, Prog console interface!!
needs two BC08S cables,
KM8-A M8317 Option number 2 ext mem, pf, boots
M8417 16K by 12 bit ) hex backplane.
M8417 16K by 12 bit ) total 48K!!!
M8417 16K by 12 bit )
M1846 Memory address expansion to 128K!!
M8319 4 line SLU
M8391 4 line SLU
M8433 RL8A RL01 controller, hex
M8310
M8300 jumpered PDP-8/E CPU set
M8330
M8366 Quad LQP8E controller - get LQP going on classic
simple switch console
M8365 LA180 20 pin berg connector
3. Lane cove F/S one
Busted box
M8315 CPU hex module
M8317 Option 2
G6501
H2195 16K x 12 memory
KC8A-A programmers console hurrah - needs cables. plugs into M8316
Omnibus 20 slot backplane full of spare modules, some tested.
-------------------------------------------------------------
DSD 2131 A5 Blue handle RX08 third party controller( not quite same
as DECdata system one??/)
M863 12 channel I/O
G227
M835 Positive I/O bus interface
M8320 Rev D bus loads, not tested, ex Ina WS200
Jumper for 8A. Remove for 8/E or it kills omnibus.
M8350 Positive I/O bus interface used for 8/I peripherals
M8360 Data break interface used for DF32/TC08
M8365 LA180 parallel interface
M848C KP8E power fail and auto restart
M8350 positive I/O bus
M8360 TC08 detape
M841
M8329
M8655 Switches5.068 Xtal burnnt out resistor and worse? no go apr 92
Front panel board with LEDS to use as spares
Wish list.
MI8-EA PC8e bootstrap loader
RX01 bootstrap loader
M8655 KL8E serial lines
Known good modules in cardboard slash folders
---------------------------------------------
M8650 Rev ? KL8E 1200 baud 03/04 Console ctrl perfect Jan 92
M8357 RX8E RX01 controller perfect Jan 92
M868 Rev D TD8E from Ray stone, tests OK both drives 29/6/89
one in main 8/E is rev H
M8650 03/04 110 Xtal working apr 92
M8650 03/04 150 Xtal removed
M8650 03/04 110 Xtal working apr 92
RX01 Cable
----------
Red edge line to front of RX01 drawer, and to outer edge of R6537 etc.
Number 10195
Name PDP-8/E module configuration
Folder Museum
Author Max Burnet
Listed on 19th Sep 1992.
$