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murff
Joined: 27 Oct 2009
Posts: 591
Location: Switzerland
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 Posted: Thu Feb 21, 2013 8:41 pm Post subject: Curta Type 2 and Type 2a - 1949 |
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Curta Type 2 and Type 2a - 1949
Based on a Curta brochure from 1949 two Curta II types were planned (type II and type IIa):
[ Curta II 1949 . . . Capacity 11 X 9 X 14 ]
[ Curta IIa 1949 . . . Capacity 12 X 7 X 16 ]
So which type would you prefer?
Curta Type 2 and Type 2a - 1949
PS: please note that these two prototypes are not available for purchase 
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Last edited by murff on Fri Jan 10, 2020 2:30 pm; edited 1 time in total |
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Pete
Joined: 04 Mar 2010
Posts: 201
Location: Great White North
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| Posted: Thu Feb 21, 2013 9:07 pm Post subject: |
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Wow. Never saw 'em before, well done Murff. Again!
Was madly checking my own 500550, 545150 etc etc to see how I'd have missed it, didn't read your "prototype" note until after I'd decided to comment, "What are you talking about?", ha ha. Glad to see these variations though, even if they are unavailable on the market.
Do you have pics of the faces of these machines?
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murff
Joined: 27 Oct 2009
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Location: Switzerland
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| Posted: Thu Feb 21, 2013 9:17 pm Post subject: |
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The battery of my cam is down... maybe tomorrow
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Pete
Joined: 04 Mar 2010
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| Posted: Thu Feb 21, 2013 11:09 pm Post subject: |
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Given the usual glacial speed of updates to this message board, tomorrow is MORE than soon enough, ha. By the way, I'm still waiting for that other little project to be finished - you'll be the second to know!
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MrSmith
Joined: 28 May 2012
Posts: 19
Location: Australia
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| Posted: Fri Feb 22, 2013 8:59 am Post subject: |
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were there other protypes planned or models designed but never put into production by Curta?
(nice to see some activity on the forum) |
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murff
Joined: 27 Oct 2009
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| Posted: Fri Feb 22, 2013 3:30 pm Post subject: |
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Yes, there was a small series of Curta 1a produced. I don't know if they were available commercially.
Otherwise there were some modifications made like the "silent" Curta (at the moment there is one offered at eBay - but I like the sound of all my Curtas so this is nothing for me).
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Last edited by murff on Thu Nov 14, 2019 9:39 am; edited 2 times in total |
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stenella
Joined: 03 Jun 2008
Posts: 46
Location: Antwerp, Belgium
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| Posted: Fri Feb 22, 2013 10:52 pm Post subject: |
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Surely these pictures of the 1949 II and IIa are digitally simulated, right? ...right ?
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murff
Joined: 27 Oct 2009
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| Posted: Sat Feb 23, 2013 8:14 am Post subject: |
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Not simulated... real photograph and some photoshop work.
These types were never produced and I assume that there are no prototypes around. Interesting is the fact that they were announced in 1949 - four years before the first Curta II was released!
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murff
Joined: 27 Oct 2009
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| Posted: Fri May 31, 2019 2:34 pm Post subject: |
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Together with a collector colleague I'm researching the existence of the Curta Type II Prototype 12 X 7 X 16.
Some time ago it happens that this (incomplete) prototype was popped up in the Museum Arithmeum, Germany.
[Picture: Arithmeum, Rheinische Friedrich-Wilhelms-Universitaet Bonn. --- and, the crank is not an original part of this prototype]
Besides, in a short note the Curta Type II 11 x 9 x 14 and 12 x 7 x 16 was mentioned as "already under construction / in development" (Neue konstruktive Wege im Rechenmaschinenbau - Von Prof. Dr. Karl Holecek, Techn. Hochschule Wien - 19./20. Oktober 1950.)
Another fact is, that at least one other Curta Type II Prototype 12 X 7 X 16 should exist - based on the memories on a personal meeting with Curt Herzstark.
It would be very interesting to find more information about these Curta Type II Prototypes - every hint would be welcome!
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murff
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murff
Joined: 27 Oct 2009
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| Posted: Sun Jul 21, 2019 7:52 pm Post subject: |
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... updated
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murff
Joined: 27 Oct 2009
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Location: Switzerland
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| Posted: Wed Mar 23, 2022 5:44 pm Post subject: |
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Curta Type 2a - Prototype P-004 - 12 X 7 X 16 digits - 1949
(I just noticed that there is no link to this gallery....)
Brief description of the Prototype P-004 - Curta Type IIa - 1949
After the introduction of the Curta Type I, customers were asking for a larger-capacity Curta - meaning more digits. Two larger Curtas were
to be launched on the market: a Curta Type II with 11 X 9 X 14 digits - and a Curta Tape IIa 12 X 7 X 16 digits. Both published 1949/1950 in
some brochures by Contina AG - the designation Curta Type IIa is from this brochure and is not mentioned anywhere else. In the biography
by Curt Herzstark, a prototype with 11 X 8 X 15 digits was mentioned - and it's not known whether these and the above-mentioned variant
with 11 X 9 X 14 digits were also realized (maybe it was just an inaccurate recollection...).
The Prototype P-004 - Curta Type IIa - was developed and manufactured in 1949/1950. Most parts in the construction correspond to the
Curta Type 1 - except for the step drum and the related parts.
See/read more: Curta Type 2a - Prototype P-004 - 12 X 7 X 16 digits - 1949 - Brief description
(... navigate with the arrows top left)
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