33731Re: [midatlanticretro] IBM Mark 1 tube plug boards on Ebay
- Dec 22, 2013On Sun, 22 Dec 2013, Mike Loewen wrote:
> On Sun, 22 Dec 2013, Mike Loewen wrote:I asked the seller about part numbers, and this was his reply:
>> On Sun, 22 Dec 2013, B. Degnan wrote:
>>> I am trying to determine these Mark 1 tube boards are complete and/or
>>> authentic. Not yet confirmed. It this point maybe, but something does not
>>> look right
>> None of the pictures I've seen of the Mark 1 show those types of
>> modules. They look more like the modules from IBM's 600 series machines,
>> like this one:
>> This one is from a model 604 Electronic Calculating Punch.
> Also, if you can ask the seller about part numbers on the module
> itself, possibly on the long sides, it might be possible to track down.
> Depending on the year, some 600 series machines had 6-digit part numbers
> starting with 3 (3XXXXX), or something like 6-XXX, or IN-XX.
"Two of them have an "S" stamped in the metal...one has DPC and one has
Not much help.
Mike Loewen mloewen@...
Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/
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