Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a
model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can communicate with some B&T tape drives and printer.
Yep, can't wait to see where this series goes. Here are the first
two episodes for those who are not subscribed (you should be!):
https://youtu.be/GjCUsmro2VY
https://youtu.be/CMyKVerpyaI
Marc has some unorthodox delidding methods... :-D
On 8/15/21 10:30 AM, Tomas Slavotinek wrote:
Yep, can't wait to see where this series goes. Here are the first two
episodes for those who are not subscribed (you should be!):
Agreed. I have always enjoyed watching Mark's and Ken's efforts.
https://youtu.be/GjCUsmro2VY
https://youtu.be/CMyKVerpyaI
Thank you for the links. It was problematic for me to get them into my
news client when I originally posted. (Local client had the videos,
where I was RDPed to something to run VNC to my news client. Copy and
what you say???)
Marc has some unorthodox delidding methods... :-D
~chuckle~
I think my favorite was the end mill and a blow torch.
Kern Sherif
On 8/14/21 7:15 PM, Grant Taylor wrote:
Kern Sherif
*Ken Shirriff
Sorry for the typo - nay butchering - Ken, no disrespect intended.
He has a lot of toys and is not afraid to use them!
(btw Dave and I are in touch with Marc and his team regarding the
Model 77 problem)
And for the sake of completeness, here is Ken's blog:
http://www.righto.com/
A lot of IBM goodness, among other things. Borderline p0rnographic...
On 15.8.2021 18:43, Grant Taylor wrote:
On 8/14/21 7:15 PM, Grant Taylor wrote:
Kern Sherif
*Ken Shirriff
Sorry for the typo - nay butchering - Ken, no disrespect intended.
Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a
model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can communicate with some B&T tape drives and printer.
Part 3 is up:
On 8/16/21 10:28 AM, Tomas Slavotinek wrote:
Part 3 is up:
I'm somewhat disappointed by that outcome.
Though I can't say as I'm surprised.
I wonder what they will do / use as an MCA system to interface with the
Bus & Tag equipment.
Well, they tried bread boarding.
Why don't they findt a spare Bermuda on flea-buy?
Lacuna would need the correct riser.
The Bermuda IMHO is more stable compared to the Lacuna. 32MB on the
system board is pretty good.
On 8/16/2021 18:52, Grant Taylor wrote:
On 8/16/21 10:28 AM, Tomas Slavotinek wrote:
Part 3 is up:
I'm somewhat disappointed by that outcome.
Though I can't say as I'm surprised.
I wonder what they will do / use as an MCA system to interface with
the Bus & Tag equipment.
Well, they tried bread boarding.
Why don't they findt a spare Bermuda on flea-buy?
Why don't they findt a spare Bermuda on flea-buy?
There was a scene about that. They showed one for > $250 and made a
comment about not wanting to pay that much.
Bermuda system board. Yup, buying a 9577 would be spendy.
On 8/16/2021 23:08, Grant Taylor wrote:
Why don't they findt a spare Bermuda on flea-buy?
There was a scene about that. They showed one for > $250 and made a
comment about not wanting to pay that much.
Louis Ohland schrieb am Dienstag, 17. August 2021 um 17:36:11 UTC+2:
Bermuda system board. Yup, buying a 9577 would be spendy.
On 8/16/2021 23:08, Grant Taylor wrote:
Why don't they findt a spare Bermuda on flea-buy?
There was a scene about that. They showed one for > $250 and made a
comment about not wanting to pay that much.
Nice one, IBM Museum :D
https://www.youtube.com/watch?v=P3-krxA3LZ0
There was a scene about that. They showed one for > $250
and made a comment about not wanting to pay that much.
Nice one, IBM Museum :D
https://www.youtube.com/watch?v=P3-krxA3LZ0
Yeah, they are covered, thanks to Dave :).
Hopefully they will have more luck with the replacement board...
On 8/16/21 6:27 PM, Louis Ohland wrote:
Well, they tried bread boarding.
Eh ... they bread boarded to read the output from the parallel port.
Mark usually does many things quite a bit more complex on bread board.
Why don't they findt a spare Bermuda on flea-buy?
There was a scene about that. They showed one for > $250 and made a
comment about not wanting to pay that much.
Looks like Marc isn't giving up just yet. He asked for some more details about the planar and the used ASICs/GAs...
Looks like Marc isn't giving up just yet. He asked for some more details about the planar and the used ASICs/GAs...
On 17.8.2021 6:08, Grant Taylor wrote:
On 8/16/21 6:27 PM, Louis Ohland wrote:
Well, they tried bread boarding.
Eh ... they bread boarded to read the output from the parallel port.
Mark usually does many things quite a bit more complex on bread board.
Why don't they findt a spare Bermuda on flea-buy?
There was a scene about that. They showed one for > $250 and made a
comment about not wanting to pay that much.
Did he ask you?
If he really wandts to go big... Look at a PS/2 PSU from a 90 or 95 and
give us schematics or something useful for repairs.
Nice one, IBM Museum :D
https://www.youtube.com/watch?v=P3-krxA3LZ0
On 8/17/21 11:14 AM, schimmi wrote:
Nice one, IBM Museum :D
https://www.youtube.com/watch?v=P3-krxA3LZ0
Why did he refer to the convenience partition as "IML"?
Wouldn't the system fail to boot if it couldn't find the initial
microcode to load?
I've run the systems without the convenience partitions or hard drives.
So ... why IML?
Why did he refer to the convenience partition as "IML"?
Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a
model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can communicate with some B&T tape drives and printer.
Part 4 is finally up:
https://youtu.be/wsLpe4lLhbo
Interesting fault...
Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a
model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can communicate with some B&T tape drives and printer.
Part 5 of the M77 series is up:
https://youtu.be/Y6UprDq8LAQ
And the planar is finally repaired for good... :)
On 15.8.2021 3:15, Grant Taylor wrote:
Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can communicate with some B&T tape drives and printer.
I spot a microchannel "long" 3270 emulation adapter at 0:15 too -
It would be nice to map out what they have planned.
Part 5 of the M77 series is up:
https://youtu.be/Y6UprDq8LAQ
And the planar is finally repaired for good... :)
They may punt and replace it with another MCA system as their
stated goal is to get the S/370 + Bus & Tag interface working so
that they can communicate with some B&T tape drives and printer.
03:30
pure marketing machines. and you wanted to remove 'captialism' :P
glad, they could save it.
Tomas Slavotinek schrieb am Montag, 15. November 2021 um 19:42:41 UTC+1:
Part 5 of the M77 series is up:
https://youtu.be/Y6UprDq8LAQ
And the planar is finally repaired for good... :)
On 15.8.2021 3:15, Grant Taylor wrote:
Curious Mark (YouTube), Kern Sherif, and soon Tube Time are debugging a
model 77 that died on them.
There are currently two videos with hints at a third. I suspect this
video series will end up being interesting. They will likely go to
great lengths to get the model 77 working.
They may punt and replace it with another MCA system as their stated
goal is to get the S/370 + Bus & Tag interface working so that they can
communicate with some B&T tape drives and printer.
I still have that full length card with the big chip.
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