[Milsurplus] Defense Department Drawings found on Computer cards - ?

[J. Forster]

There were (are) at lest two standards:

Aperture Cards: Standard IBM 80 column punch cards with a rectangular
opening for 35 mm film. I think it was 1 drawing per card.

and

Microfiche: 4x6 inch sheets of usually diazo film. Each fiche held from
maybe a dozen to over 100 images. They could be duplicated by a process
like blueprinting, strong light contact printing followed by ammonia vapor
development.

Some had a white or other colored stripe about 1/2" wide across the top.
The stripe was to make the title more visible, but blocked duplication of
that part of the card also.

-John

=========



> These look like standard computer cards with a DoD watermark and a 35mm
> slide embedded.
>
> When a product was completed and released to the DoD, the defence
> contractor
> provided a complete set of blue drawings in that format.
>
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net
> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of WA5CAB at cs.com
> Sent: Tuesday, December 18, 2012 10:38 AM
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] Defense Department Drawings found on Computer
> cards - ?
>
> The only archiving that I am aware of was to microfiche but not on
> aperture
> cards.  The ones that I got from NTIS between 1989 (or probably earlier,
> that's about as far back as my A/P records go) and 1995 were film roughly
> 3x4 with a white or yellow strip across the top.  In the 80's and back I
> was
> still getting original hard copy.  The first one that I got was on the
> I-199, which is a WW-II vintage dynamotor and generator tester.  At the
> time
> I first ordered the manual originals still existed but had for some dumb
> reason been classified above my pay grade.  By the time I got around that,
> only the fiche were available.
>
> In a message dated 12/18/2012 09:26:42 AM Central Standard Time,
> ma.locksmith at juno.com writes:
>> >3.  I wonder, question, if the WWII TM manuals were ever archived in
>> >
>> >this manner using IBM style punchcards?
>>
>
> Robert Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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