9 Apr
1999
9 Apr
'99
11:23 p.m.
I came across an odd board in the dumpster at work today. Hopefully
one of you might recognize it. It appears to be some sort of bubble
memory board.
Details:
Small board, approx. the size of a 5.25" floppy drive board
2x40-pin Berg headers at one end
2x36-pin edge connectors at the other
2 very small pushbuttons
3 LEDs labelled:
ERR
EN
RUN
Obvious chips:
ROM labelled "RCB1.1"
Z80A
Intel D7220-1
Intel 7110A-1 bubble memory module
Lots of 74LS-family chips
Markings:
Bubbl-tec
division of PC/M, Inc.
Copyright 1984
PC/M INC.
R-II-AM-BUBBL-A
Anybody recognize this one?
<<<John>>>
10 Apr
10 Apr
2:27 a.m.
On Sat, 10 Apr 1999, John Ruschmeyer wrote:
I came across an odd board in the dumpster at work
today. Hopefully
one of you might recognize it. It appears to be some sort of bubble
memory board.
Details:
Small board, approx. the size of a 5.25" floppy drive board
2x40-pin Berg headers at one end
2x36-pin edge connectors at the other
2 very small pushbuttons
3 LEDs labelled:
ERR
EN
RUN
Obvious chips:
ROM labelled "RCB1.1"
Z80A
Intel D7220-1
Intel 7110A-1 bubble memory module
Lots of 74LS-family chips
Markings:
Bubbl-tec
division of PC/M, Inc.
Copyright 1984
PC/M INC.
R-II-AM-BUBBL-A
Anybody recognize this one?
No, but with a Z80A and ROM onboard it sounds like a single board computer
with a bubble memory for starge. Might possibly be some sort of
high-reliance industrial controller. Nice find!
Question: Does it look like this
http://www.siconic.com/ebay/BUBBLE.gif
or does the top (lable-side) edge connectors not have gold contacts (only
the bottom)?
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming in 1999: Vintage Computer Festival 3.0
See http://www.vintage.org/vcf for details!
[Last web site update: 04/03/99]
7:07 p.m.
On Sat, 10 Apr 1999, John Ruschmeyer wrote:
Makes sense given things that go on in the building.
I came across an odd board in the dumpster at
work today. Hopefully
one of you might recognize it. It appears to be some sort of bubble
memory board.
Markings:
Bubbl-tec
division of PC/M, Inc.
Copyright 1984
PC/M INC.
R-II-AM-BUBBL-A
Anybody recognize this one?
No, but with a Z80A and ROM onboard it sounds like a single board computer
with a bubble memory for starge. Might possibly be some sort of
high-reliance industrial controller. Nice find! Question: Does it look like this
http://www.siconic.com/ebay/BUBBLE.gif
or does the top (lable-side) edge connectors not have gold contacts (only
the bottom)?
Looks *exactly* like the picture. Why do you ask?
<<<John>>>
9407
days inactive
9408
days old
2 comments
2 participants
participants (2)
-
dastar＠ncal.verio.com -
jruschme＠exit109.com