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
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EBAY listing photos.
Photos as received and examined
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| M8059FC |
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| MDB MLSI - MRV11-C #400 40360 |
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| Position of switches on custom board |
MC 6850 data sheet MC6850.pdf
National 75453 driver DS75452n.pdf
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| Custom Board FTM-R1 |
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| DEC 7941 Parallel board |
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| Full Rear View |
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| Card Cage |
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