9 Apr
2001
9 Apr
'01
9:01 p.m.
I picked up a SWTP central processing unit, model /09. What is this? It has a
SWTP cpu card (MP-09B) with a 2 MHz MC68B09P, a Hazelwood card marked DM-64 and
a Microworks card with an MC68B21P on it. The MicroWorks card has wires through
the rear of the case. It also has 3 serial and 1 parallel cards. The Hazelwood
card looks burned a bit on the back side of one transistor. The CPU card looks
ok, but I don't want to power it up without first checking the power supply.
What are the voltages for the power supply? What is the MicroWorks card? Does
anyone have any docs or info for this, maybe a website? Thanks.
Robert
9 Apr
9 Apr
11:43 p.m.
http://www.obsoletecomputermuseum.org/helpline/a199810.html
that page amy have some info or at least some email addresses you can ask
if they ahve any info for it :)
http://neil.franklin.ch/Usenet/alt.folklore.computers/20000510_Motorola_Int…
this may have some useful email addresses in it also.
and finally BINGO! a website dedicated to the SWTP systems.
http://www.swtpc.com/
10 Apr
10 Apr
12:32 a.m.
Robert,
I'll check my SWTPc docs and see what I have for the PSU. In
your box, are the two buses parallel to each other, with a long card
bridging them near the PSU? I know someone with quite a bit of SWTPc
stuff and could probably get info from him if I don't have it in mine.
Jeff
I picked up a SWTP central processing unit, model /09.
What is this? It has a
SWTP cpu card (MP-09B) with a 2 MHz MC68B09P, a Hazelwood card
marked DM-64 and
a Microworks card with an MC68B21P on it. The MicroWorks card has
wires through
the rear of the case. It also has 3 serial and 1 parallel cards.
The Hazelwood
card looks burned a bit on the back side of one transistor. The CPU
card looks
ok, but I don't want to power it up without first checking the power supply.
What are the voltages for the power supply? What is the MicroWorks
card? Does
anyone have any docs or info for this, maybe a website? Thanks.
Robert
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
10 a.m.
I posted some pictures of it, they aren't very good but you can see the bus layout
and a few card shots. The cards are as follows on picture 2 (swtp2.jpg) from left
to right, top to bottom: parallel (label on back), serial x 3, MicroWorks. 2nd
row: CPU card and RAM card. The parallel card is long, just as you described it.
They are located here: http://www.angelfire.com/ga3/pbboy/swtp/swtp.htm
Robert
Jeff Hellige wrote:
Robert,
I'll check my SWTPc docs and see what I have for the PSU. In
your box, are the two buses parallel to each other, with a long card
bridging them near the PSU? I know someone with quite a bit of SWTPc
stuff and could probably get info from him if I don't have it in mine.
Jeff
I picked up a SWTP central processing unit, model
/09. What is this? It has a
SWTP cpu card (MP-09B) with a 2 MHz MC68B09P, a Hazelwood card
marked DM-64 and
a Microworks card with an MC68B21P on it. The MicroWorks card has
wires through
the rear of the case. It also has 3 serial and 1 parallel cards.
The Hazelwood
card looks burned a bit on the back side of one transistor. The CPU
card looks
ok, but I don't want to power it up without first checking the power supply.
What are the voltages for the power supply? What is the MicroWorks
card? Does
anyone have any docs or info for this, maybe a website? Thanks.
Robert
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
11:22 a.m.
Hi Robert,
Thanks for posting the pics...it's certainly in a case I've
not seen before, though the basic internal layout looks very similar
to mine. How about comparing the major cards in yours to the list
below. It's the internals of my SWTPc 6809:
SWTPc MP-09A cpu board with AN 122A modification
MP-MB mainboard
MP-1D bridgecard between the SS-50 and SS-30 buses.
SWTPc DMF2 floppy controller, Rev C
Two MP-S2 serial cards, each with two serial ports
MP-L2 paralell card with two paralell ports
Also, here are the docs that I currently have:
DMF2 Floppy disk unit (calls the board both DMAF2 and DMF2A)
SWTPc 6809 Programming Reference Manual
SWTPc 6809 Computer System Documenation Manual (covers
69A/69K computer, CT-82 terminal, DMAF disk unit, and CDS-1 hard disk)
SWTPc SBUG-E 6809 ROM Monitor Version 1.5 User's Guide
Smoke Signal Broadcasting MON-69 user's guide
MP-09 Processor board assembly instructions
MP-B3 Mother Board Assembly instructions
MP-S2 Serial Interface Assembly instructions
MP-L2 Parallel Interface Assembly instructions
MP-P2 Power Supply Assembly instructions
The manual isn't the one that shipped with my machine, as
mine is a S/09, but some of it still applies.
Jeff
I posted some pictures of it, they aren't very good
but you can see
the bus layout
and a few card shots. The cards are as follows on picture 2
(swtp2.jpg) from left
to right, top to bottom: parallel (label on back), serial x 3,
MicroWorks. 2nd
row: CPU card and RAM card. The parallel card is long, just as you
described it.
They are located here: http://www.angelfire.com/ga3/pbboy/swtp/swtp.htm
Robert
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
2:29 p.m.
Here are my cards:
SWTP MP-09B Rev. B (1980)
MP-MBA (1982)
Hazelwood DM-64
MicroWorks 6850 UIO 6820 (what is this?)
three SWTP MP-S2
SWTP MP-ID Rev. F with parallel
that's all of them, no floppy controllers unless one of these are one.
apparently the serial cards had a tape drive and modem attached, the cable were
labeled as such. I've posted the pictures of the individual cards out of the
case, all but the bridge as I couldn't remove it. they are on this address:
http://www.angelfire.com/ga3/pbboy/swtp/swtp2.htm
Robert
Jeff Hellige wrote:
Hi Robert,
Thanks for posting the pics...it's certainly in a case I've
not seen before, though the basic internal layout looks very similar
to mine. How about comparing the major cards in yours to the list
below. It's the internals of my SWTPc 6809:
SWTPc MP-09A cpu board with AN 122A modification
MP-MB mainboard
MP-1D bridgecard between the SS-50 and SS-30 buses.
SWTPc DMF2 floppy controller, Rev C
Two MP-S2 serial cards, each with two serial ports
MP-L2 paralell card with two paralell ports
Also, here are the docs that I currently have:
DMF2 Floppy disk unit (calls the board both DMAF2 and DMF2A)
SWTPc 6809 Programming Reference Manual
SWTPc 6809 Computer System Documenation Manual (covers
69A/69K computer, CT-82 terminal, DMAF disk unit, and CDS-1 hard disk)
SWTPc SBUG-E 6809 ROM Monitor Version 1.5 User's Guide
Smoke Signal Broadcasting MON-69 user's guide
MP-09 Processor board assembly instructions
MP-B3 Mother Board Assembly instructions
MP-S2 Serial Interface Assembly instructions
MP-L2 Parallel Interface Assembly instructions
MP-P2 Power Supply Assembly instructions
The manual isn't the one that shipped with my machine, as
mine is a S/09, but some of it still applies.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
4:21 p.m.
Hi Robert,
I've been forwarding all of your information to a friend who
is pretty big into the SWTPc machines. Mine had been the first he
had heard of with the MP-MB/MP-1D combination with both buses
parallel to each other, so he's been really interested in hearing
about yours and looking at the pictures. I find the casing of yours
interesting since it is so different than mine. Mine is in the
standard SWTPc black/silver case.
Jeff
Here are my cards:
SWTP MP-09B Rev. B (1980)
MP-MBA (1982)
Hazelwood DM-64
MicroWorks 6850 UIO 6820 (what is this?)
three SWTP MP-S2
SWTP MP-ID Rev. F with parallel
that's all of them, no floppy controllers unless one of these are one.
apparently the serial cards had a tape drive and modem attached, the
cable were
labeled as such. I've posted the pictures of the individual cards out of the
case, all but the bridge as I couldn't remove it. they are on this address:
http://www.angelfire.com/ga3/pbboy/swtp/swtp2.htm
Robert
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
2:28 p.m.
On Tue, 10 Apr 2001, Robert wrote:
I posted some pictures of it, they aren't very
good but you can see
the bus layout and a few card shots. The cards are as follows on
picture 2 (swtp2.jpg) from left to right, top to bottom: parallel
(label on back), serial x 3, MicroWorks. 2nd row: CPU card and RAM
card. The parallel card is long, just as you described it. They are
located here: http://www.angelfire.com/ga3/pbboy/swtp/swtp.htm
Hi Robert.
I have five of these :) They are basically high-powered (for the time)
6809 multi-user business servers. They most likely ran the FLEX operating
system and performed routine business accounting type things.
A nice box. A good example of late-model SWTPC systems before they went
the way of the dodo, sometime in the mid- to late-80s.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
4:17 p.m.
The 6809 versions were built like tanks. Mine came with
support ROMs from Microware for running OS/9, though FLEX and disk
system specific DOSes were also available. From what I've been able
to gather, the 6809 boxes like mine and Robert's supported more RAM
than the earlier 69/A and 69/K boxes. With a friends help, I'm
hoping to get a new disk system up and running on mine fairly soon.
Jeff
I have five of these :) They are basically
high-powered (for the time)
6809 multi-user business servers. They most likely ran the FLEX operating
system and performed routine business accounting type things.
A nice box. A good example of late-model SWTPC systems before they went
the way of the dodo, sometime in the mid- to late-80s.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
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