2 Sep
2008
2 Sep
'08
10:07 p.m.
Does the CHM
have a complete 'large'-category tube system that could
conceivably be made to run again?
Al? 
2 Sep
2 Sep
11:31 p.m.
New subject: Tube machine restoration (was Schematics of Atanasoff-Berry Computer logic circuits?)
Not really. Johnniac, WISC, and the G15 are the
closest to being complete
but none would be a restoration candidate since current CHM restoration
guidelines state that a restoration would not occur if a machine is one of
a kind, or there is only one in the collection (G15).
I can certainly understand the one-of-a-kind constraint, but if
another REAL museum gets a similar machine, do you think CHM would
change its mind? For example, if the Smithsonian Institution were to
own the G-15 it currently has on (permanent) loan, would that count,
knowing that they will never restore it?
If the drum is good, a G-15 probably would not be all that hard to get
running. Providing birds did not shit all over it.
--
Will
3 Sep
3 Sep
11:16 a.m.
New subject: Tube machine restoration (was Schematics of Atanasoff-Berry Computer logic circuits?)
On Tuesday 02 September 2008, William Donzelli wrote:
The CHM Restoration Committee, some CHM PDP-1/IBM 1620 Restoration
Team Members (including myself) have a G-15 in the "short list" in
their thinking regarding potential restorations. There's plenty of
software available for the G-15 - and the project is a lot less
demanding than the DEC PDP-1, IBM 1401 and IBM 1620 projects we have
or are tackling.
If we obtained an additional G-15 from another source, that would
certainly be a factor in making such a decision.
However, by necessity, the restoration selection process at the CHM is
complex - as it has to take into consideration everything from
exhibit plans, demo requirements, educational value, availability of
staff, team leadership, volunteers, etc...
Regards,
Lyle
Not really.
Johnniac, WISC, and the G15 are the closest to being
complete but none would be a restoration candidate since current
CHM restoration guidelines state that a restoration would not
occur if a machine is one of a kind, or there is only one in the
collection (G15).
I can certainly understand the one-of-a-kind constraint, but if
another REAL museum gets a similar machine, do you think CHM would
change its mind? For example, if the Smithsonian Institution were
to own the G-15 it currently has on (permanent) loan, would that
count, knowing that they will never restore it?
If the drum is good, a G-15 probably would not be all that hard to
get running. Providing birds did not shit all over it.
--
Will
--
Lyle Bickley
Bickley Consulting West Inc.
Mountain View, CA 94040
http://bickleywest.com
"Black holes are where God is dividing by zero"
2:12 p.m.
New subject: Tube machine restoration (was Schematics of Atanasoff-Berry Computer logic circuits?)
Lyle Bickley wrote:
The CHM Restoration Committee, some CHM PDP-1/IBM 1620
Restoration
Team Members (including myself) have a G-15 in the "short list" in
their thinking regarding potential restorations.
[...]
If we obtained an additional G-15 from another source,
that would
certainly be a factor in making such a decision.
If I recall correctly, the mounting frame of CHM's G-15 is seriously
warped, perhaps as the result of the machine having been dropped at some
point. That doesn't bode well for getting the drum working. Getting an
additional G-15 may not just be a factor, but a requirement.
Eric
3:02 p.m.
New subject: Tube machine restoration (was Schematics of Atanasoff-Berry Computer logic circuits?)
If I recall correctly, the mounting frame of CHM's
G-15 is seriously warped,
perhaps as the result of the machine having been dropped at some point.
That doesn't bode well for getting the drum working. Getting an additional
G-15 may not just be a factor, but a requirement.
I think the drum is shockmounted? I can not remember.
Still, a hard landing...
--
Will
5801
days inactive
5801
days old
4 comments
4 participants
participants (4)
-
aek＠bitsavers.org -
eric＠brouhaha.com -
lbickley＠bickleywest.com -
wdonzelli＠gmail.com