16 Jul
2001
16 Jul
'01
4:18 p.m.
I found some QBUS boards that I can't identify from the field
guide. The numbers are:
M8950
M8951
M8952
M8953
M8955
M8958
M8970
M8971
M8972
M8973
I believe some of them are parts of a tape controller, and
one of the boards had an i8085 along with some ROMs. There's
also a board with a bunch of ROMs that has the notation "8085
ROM BOARD".
I have no idea of the origin of the boards. I found them in
a cabinet while I was looking for some documentation.
--
Eric Dittman
dittman(a)dittman.net
16 Jul
16 Jul
5:21 p.m.
Eric Dittman wrote:
I found some QBUS boards that I can't identify from the field
guide. The numbers are:
M8950
M8951
M8952
M8953
M8955
M8958
M8970
M8971
M8972
M8973
According to the module list at http://pdp-8.org/mixed.txt
they are:
M8950 TM78,READ CHANNEL
M8951 TM78 ERROR CORRECTION BOARD
M8952 CRC + ACRC, TM78
M8953 READ PATH SEQUENCER, TM78
M8955 TM78 PORT
M8958 TM78 TRANSLATOR
M8970 STI INTERFACE MICRO BD (QUAD)
M8971 STI INTERFACE DRIVER BD (QUAD
M8972 TA78 MICROCOMPUTER, QUAD
M8973 8085 EXTENDED MEMORY,DBL8.5
6:12 p.m.
M8950
M8951
M8952
M8953
M8955
M8958
M8970
M8971
M8972
M8973
M8950-00 TM78,READ CHANNEL
M8952-00 CRC + ACRC, TM78
M8953-00 READ PATH SEQUENCER, TM78
M8955-00 TM78 PORT
M8958-00 TM78 TRANSLATOR
M8970-00 STI INTERFACE MICRO BD (QUAD)
M8971-00 STI INTERFACE DRIVER BD (QUAD
M8972-00 TA78 MICROCOMPUTER, QUAD
8409
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8409
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2 comments
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participants (3)
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dittman＠dittman.net -
michael_davidson＠pacbell.net -
thompson＠mail.athenet.net