1:32 p.m.
Maybe we can salvage this thread..
If you +do+ happen to be interested in owning an SBC / digital computer
trainer, there are still quite a few Heathkit ET-3400 up on eBay at the
moment. Prices have come up a bit - though not much - from a year ago, when
they were selling for ~$40.00 USD.
Nice little units, and full documentation is freely available.
Now a question..
On the LabVolt SBC, there's a little keylock on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips inside
there, or...?
On Wed, Feb 17, 2016 at 4:08 AM, Christian Corti <
cc at informatik.uni-stuttgart.de> wrote:
On Wed, 17 Feb 2016, Jose Manuel wrote:
I have a Kim 1 board.
Please contact.
So what? We have at least half a dozen KIM-1, some with expansion boxes,
EPROM burners, memory extension, etc.
;-)
Christian
2:34 p.m.
On 2/17/2016 3:32 PM, drlegendre . wrote:
On the LabVolt SBC, there's a little keylock on
the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips inside
there, or...?
DIP switches, since it's a trainer, it appears they are used to
create
"faults" to troubleshoot.
I've got one, but I know little to nothing about it other than the
physical hardware, and if anyone has the lab manuals I'd love to see
those. Which would explain the mystery of these DIP switches.
2:39 p.m.
On 2/17/2016 1:32 PM, drlegendre . wrote:
Maybe we can salvage this thread..
If you +do+ happen to be interested in owning an SBC / digital computer
trainer, there are still quite a few Heathkit ET-3400 up on eBay at the
moment. Prices have come up a bit - though not much - from a year ago, when
they were selling for ~$40.00 USD.
Nice little units, and full documentation is freely available.
Now a question..
On the LabVolt SBC, there's a little keylock on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips inside
there, or...?
I've got the 68HC11 version of the ET-3800 just acquired for probably
more than I should have. Anyone have any software / experience with them?
There appears to be a big box on Ebay for sale (x a couple of units for
sale separately) for this as well, or maybe it is for the 3400.
I'd be interested in what people have. Mine came with the processor
personality and the memory module only.
thanks
Jim
3:33 p.m.
I've got one too, but please don't contact me about it. Seriously. I will
never tell you the super magic secret. Forget I said that.
On Wed, Feb 17, 2016 at 5:39 PM, jwsmobile <jws at jwsss.com> wrote:
On 2/17/2016 1:32 PM, drlegendre . wrote:
--
@ BillDeg:
Web: vintagecomputer.net
Twitter: @billdeg <https://twitter.com/billdeg>
Youtube: @billdeg <https://www.youtube.com/user/billdeg>
Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
Maybe we can salvage this thread..
If you +do+ happen to be interested in owning an SBC / digital computer
trainer, there are still quite a few Heathkit ET-3400 up on eBay at the
moment. Prices have come up a bit - though not much - from a year ago,
when
they were selling for ~$40.00 USD.
Nice little units, and full documentation is freely available.
Now a question..
On the LabVolt SBC, there's a little keylock on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips
inside
there, or...?
I've got the 68HC11 version of the ET-3800 just acquired for probably
more
than I should have. Anyone have any software / experience with them?
There appears to be a big box on Ebay for sale (x a couple of units for
sale separately) for this as well, or maybe it is for the 3400.
I'd be interested in what people have. Mine came with the processor
personality and the memory module only.
thanks
Jim
5:23 p.m.
"On 2/17/2016 3:32 PM, drlegendre . wrote:
On the LabVolt SBC, there's a little keylock on
the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips inside
there, or...?
DIP switches, since it's a trainer, it appears they are used to create
"faults" to troubleshoot."
Just to be clear - you +know+ for a fact there are DIP switches inside, but
you only +surmise+ they are for creating fault conditions?
As mentioned, I was thinking either pricey components or possibly some sort
of anti-theft device.. opening the door exposes a feature that allows the
unit to be tethered to a bench.
This is before the days of commodity EEPROM, so it's not like they need to
write-protect firmware, resident software, etc.
On Wed, Feb 17, 2016 at 5:33 PM, william degnan <billdegnan at gmail.com>
wrote:
I've got one too, but please don't contact me
about it. Seriously. I will
never tell you the super magic secret. Forget I said that.
On Wed, Feb 17, 2016 at 5:39 PM, jwsmobile <jws at jwsss.com> wrote:
On 2/17/2016 1:32 PM, drlegendre . wrote:
them?
Maybe we can salvage this thread..
If you +do+ happen to be interested in owning an SBC / digital computer
trainer, there are still quite a few Heathkit ET-3400 up on eBay at the
moment. Prices have come up a bit - though not much - from a year ago,
when
they were selling for ~$40.00 USD.
Nice little units, and full documentation is freely available.
Now a question..
On the LabVolt SBC, there's a little keylock on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips
inside
there, or...?
I've got the 68HC11 version of the ET-3800 just acquired for probably
more
than I should have. Anyone have any software / experience with
There appears to be a big box on Ebay for sale (x a couple of units for
sale separately) for this as well, or maybe it is for the 3400.
I'd be interested in what people have. Mine came with the processor
personality and the memory module only.
thanks
Jim
--
@ BillDeg:
Web: vintagecomputer.net
Twitter: @billdeg <https://twitter.com/billdeg>
Youtube: @billdeg <https://www.youtube.com/user/billdeg>
Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
5:24 p.m.
"I've got one too, but please don't contact me about it. Seriously. I will
never tell you the super magic secret. Forget I said that."
Ok, I've forgotten that you said you'd never tell me.
So what's the box for? =P
On Wed, Feb 17, 2016 at 7:23 PM, drlegendre . <drlegendre at gmail.com> wrote:
"On 2/17/2016 3:32 PM, drlegendre . wrote:
On the LabVolt SBC, there's a little keylock
on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips
inside
there, or...?
DIP switches, since it's a trainer, it appears they are used to create
"faults" to troubleshoot."
Just to be clear - you +know+ for a fact there are DIP switches inside,
but you only +surmise+ they are for creating fault conditions?
As mentioned, I was thinking either pricey components or possibly some
sort of anti-theft device.. opening the door exposes a feature that allows
the unit to be tethered to a bench.
This is before the days of commodity EEPROM, so it's not like they need to
write-protect firmware, resident software, etc.
On Wed, Feb 17, 2016 at 5:33 PM, william degnan <billdegnan at gmail.com>
wrote:
I've got one too, but please don't
contact me about it. Seriously. I will
never tell you the super magic secret. Forget I said that.
On Wed, Feb 17, 2016 at 5:39 PM, jwsmobile <jws at jwsss.com> wrote:
On 2/17/2016 1:32 PM, drlegendre . wrote:
them?
Maybe we can salvage this thread..
If you +do+ happen to be interested in owning an SBC / digital computer
trainer, there are still quite a few Heathkit ET-3400 up on eBay at the
moment. Prices have come up a bit - though not much - from a year ago,
when
they were selling for ~$40.00 USD.
Nice little units, and full documentation is freely available.
Now a question..
On the LabVolt SBC, there's a little keylock on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips
inside
there, or...?
I've got the 68HC11 version of the ET-3800 just acquired for probably
more
than I should have. Anyone have any software / experience with
There appears to be a big box on Ebay for sale (x a couple of units for
sale separately) for this as well, or maybe it is for the 3400.
I'd be interested in what people have. Mine came with the processor
personality and the memory module only.
thanks
Jim
--
@ BillDeg:
Web: vintagecomputer.net
Twitter: @billdeg <https://twitter.com/billdeg>
Youtube: @billdeg <https://www.youtube.com/user/billdeg>
Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
8:25 p.m.
On 2016-Feb-17, at 5:23 PM, drlegendre . wrote:
"On 2/17/2016 3:32 PM, drlegendre . wrote:
Well, you might consider this near example:
http://www.dvq.com/oldcomp/micros.htm
Look down the page for the LabVolt 355.
I forget who "dvq" is, I think they were or are on the list.
On the LabVolt SBC, there's a little keylock
on the lower, left of the
board. What's the purpose of the lock? Are there costly (RAM?) chips inside
there, or...?
DIP switches, since it's a trainer, it appears they are used to create
"faults" to troubleshoot."
Just to be clear - you +know+ for a fact there are DIP switches inside, but
you only +surmise+ they are for creating fault conditions? As mentioned, I was thinking either pricey components
or possibly some sort
of anti-theft device.. opening the door exposes a feature that allows the
unit to be tethered to a bench.
This is before the days of commodity EEPROM, so it's not like they need to
write-protect firmware, resident software, etc.
8:58 p.m.
Brent,
"The 355 top opened: under the locked cover, switches can be set to
introduce faults into the circuit."
Thanks.
On Wed, Feb 17, 2016 at 10:25 PM, Brent Hilpert <hilpert at cs.ubc.ca> wrote:
On 2016-Feb-17, at 5:23 PM, drlegendre . wrote:
but
"On 2/17/2016 3:32 PM, drlegendre . wrote:
> On the LabVolt SBC, there's a little keylock on the lower, left of the
> board. What's the purpose of the lock? Are there costly (RAM?) chips
inside
there,
or...?
DIP switches, since it's a trainer, it appears they are used to create
"faults" to troubleshoot."
Just to be clear - you +know+ for a fact there are DIP switches inside, you only +surmise+ they are for creating fault
conditions?
Well, you might consider this near example:
http://www.dvq.com/oldcomp/micros.htm
Look down the page for the LabVolt 355.
I forget who "dvq" is, I think they were or are on the list.
As mentioned, I was thinking either pricey
components or possibly some
sort
of anti-theft device.. opening the door exposes a
feature that allows the
unit to be tethered to a bench.
This is before the days of commodity EEPROM, so it's not like they need
to
write-protect firmware, resident software, etc.
9:05 p.m.
On Wed, Feb 17, 2016 at 8:58 PM, drlegendre . <drlegendre at gmail.com> wrote:
Brent,
"The 355 top opened: under the locked cover, switches can be set to
introduce faults into the circuit."
If this was intended to be an instructional tool, perhaps the keylocked
door was to prevent the Kobyashi Maru scenario, or rather, the hacking
thereof. :-)
--
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School <http://ischool.uw.edu>
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens
Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
Value Sensitive Design Research Lab <http://vsdesign.org>
University of Washington
There is an old Vulcan saying: "Only Nixon could go to China."
7:44 p.m.
Since the thread is still rolling..
Anyone on the US side have a KIM-1 they'd be willing to re-home? The SBCs
are right in my collecting niche, and I'd love to own a KIM or one of the
other 6502 / 8600 / Z-80 SBCs.
Up front, I'd most likely have to offer a trade or trade + cash for it.
On Wed, Feb 17, 2016 at 4:08 AM, Christian Corti <
cc at informatik.uni-stuttgart.de> wrote:
On Wed, 17 Feb 2016, Jose Manuel wrote:
I have a Kim 1 board.
Please contact.
So what? We have at least half a dozen KIM-1, some with expansion boxes,
EPROM burners, memory extension, etc.
;-)
Christian
3230
days inactive
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11 comments
8 participants
participants (8)
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billdegnan＠gmail.com -
cc＠informatik.uni-stuttgart.de -
drlegendre＠gmail.com -
hilpert＠cs.ubc.ca -
isking＠uw.edu -
jws＠jwsss.com -
mikelee＠tdh.com -
uribecosta123＠gmail.com