There are actually three boards I need to ID, the third is possibly a tape
controller. Here's the rundown:
#1 A Q-bus dual width board made by DTC. Has a 50-pin header next to a
single ejector handle. All TTL chips, no LSI or CMOS devices. Two 8-section
DIP switches on board. Only markings are a FAB, ASSY, REV and S/N numbers.
The ASSY number is 007-00002.
Could this be a Q-bus SCSI board (I hope, I hope, I hope)? But there's no
CPU or ASIC, etc. onboard to handle DMA, SCSI device protocoll, etc. :( An
appropriate driver in conjunction with the OS would have to do this.
#2 A Q-bus quad width board of unknown manufacture. Two 50-pin headers at
handle-edge of board. A marking on the component side says it's a "Q
BUS/LEXID INT." with a number 77D609871P1 under it. A number stamped on the
backside is "GE77D609871G1" with "SER NO- 44" under it. Those part numbers
look like old GE part numbers. Did General Electric make any equipment for
the DEC world?
#3 This is what I feel is an Archive tape controller. It has "ARCHIVE
CORP. Copyright 1983" silk screened onto the component side. No other
numbers on the silk screen, dang it. It is 5.5" x 7.75" with a 50-pin edge
connector (marked "J1") on one 5.5" end and a 50-pin header (marked "J3")
at the other end. "J2" is a 4-pin recepticle which is the same as the power
connector on a 5.25" floppy or hard drive and is on the edge connector-end
of the board. The EPROM label has 80182-010 on it. Has an 8031
microcontroller chip, an 8155 and an Archive LCC ASIC plus a bunch of TTL
and one small CMOS RAM chip (Mitsubishi M5M2167P-70). Other numbers found
on the board seem to be component part numbers however there is a
hand-written number on the solder side which is 80158-013/A. Could this be
an important identifying number?
I want to try to identify these boards to see if theyt are useable in the
systems I'm keeping, especially item #1.
Thanks for the help.
--Chris
-- --
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA
Member of Antique Wireless Association
URL:
http://www.ggw.org/freenet/a/awa/
Received on Wed Jul 15 1998 - 15:01:16 BST