Jim's collections: pdp11

Friday, December 21, 2018

OH-180 (AKA converted VT103-AA)

This system has 2 MDB boards completely populate with 2732 eproms, presumably
the software for the system.

Digital-B2-VT103-AA-Oh180-Video-Terminal-3-1a-Amp-120v-ac
https://www.ebay.com/itm/292818958162

the VT103-AA is the system ID for a VT100 + Qbus but no tape drive

There is a custom board in addition to MDB and DEC boards.

Some information

M8186 KDF11 processor
M8059FC 64Kx18 DLV1J-UG chip Fairchild MB8264-150 (x18) MB8264-15
M7941 LSI-11_Systems_Service_Manual page 288
M8043
MDB MLSI - MRV11-C #400 40360 (16 x 2732) (x2)
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Custom FTM-R1
Ser No 170
Chips: MC6850
J1 40 pin to M7941
J3 to external DB9F

74LS14
CD4047AE
74LS123N
SN74LS00

National 75453
National S8863N
SN74LS244N
AB 314E221331 (termination) (x2)
National DM74LS374
----------------------------------------------

EBAY listing photos.

Photos as received and examined

M8059FC

MDB MLSI - MRV11-C #400 40360

Position of switches on custom board

MC 6850 data sheet MC6850.pdf
National 75453 driver DS75452n.pdf

Custom Board FTM-R1

DEC 7941 Parallel board

Full Rear View

Card Cage

--30--

Sunday, December 10, 2017

Monday, August 29, 2016

PDP 11/84 system

Ebay Dec PDP-11/84-AA 10.5 inch box, with H7202Ka

Box was missing a 8191, which is the Unibus bridge board.
A terminator, M7677 was in the customary slot for that board.

Dec fieldguide.html

Bitsavers:
pdf/dec/pdp11/1184

Dec PDP-11/84-AA complete box, with
Power
H7202Ka,

Qbus
M7677         Monitor and testpoint board
M8190 CPU            KDJ11-B   11/84 CPU: J11 CPU 15MHz
M8637 Mem            MSV11-JB   1-Mbyte ECC PMI RAM with CSR
M7656 x 2,VSV21-AA   Colour graphics module: M68K processor, HD63486

Unibus
M8181,     MKB11-EM 11/74 mapping box
M7819      DZ11-A    8-line double-buffered async EIA
With RM rails.

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Spare part from another auction:

Vintage-Digital-Equipment-PDP11-84-Operator-Panel 70-21888-0

Front Panel

There may be some mods to this board, certainly some jumpers

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From another system on the VCFed board

Thread about 11/84

Comment about the contents of the system below:

Okay, so immediately I can confirm slots 1-4 are correct as listed on the chart
Slot 5 should have an M3105 but contains a G7273 so that's been removed.
Slot 6 should have an M7754 but contains an emulex CU1110401 card (no idea on what that is).
Slot 7 should have an M7762 but has another G7273 installed.
Slot 8 should have an M3105 but has another G7273 installed.
Slot 9 should have an M7273 but has an M7485 installed.
Slot 10 should have an M7258 but has an M7486 installed. (okay, so I do have the controller for the drive)
Slot 11 should have a G7273 but has an Emulex TU1210401. One of the connectors have a piece of tape on it marked " From 11/44"
Slot 12 should have an M9302, G7273, and an M87556 and they are all there.
I should technically redo the chart but it's all done in pen so I can't erase and modify it.
I want to plug in an M7093 and M8722 to tweak the specs a little. All you gotta do is plug them into a slot and they should work, right?

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Conservatique site 11/84

http://www.conservatique.com/pdp/dec-pdp-1184

Very nice view allowing view of the card numbers. No info though.

Looking up cards, however, appears to be ethernet card M7521, and a card with a couple of 50 pin cables out to a 50 pin centronix. Third party, possibly Emulex. Is Quad high, so not sure if that is compatible with that or not. Rest is similar to other two systems.