What's New
Last Update: January 22, 2003 --
THE TI REFERENCE
Calculator vs Telephone Keyboards -- January 20, 2002
The Vick Demo -- January 20, 2002
The Helmut G. Ayen Curta Collection -- January 20, 2002
A Clear Curta -- January 20, 2002
A Gold Curta -- January 20, 2002
A Chrome Curta -- January 20, 2002
The Oldest Curta -- January 20, 2002
The First Curta Demo -- January 20, 2002
Some Nice Curta Photos -- January 20, 2002
More Info on TI models -- January 20, 2002
Frequently Asked Questions -- August 26, 2001
Pictures of the Curta Demo Unit! -- August 24, 2001
A Curta Demo Unit! -- July 04, 2001
Pictures of Curt Herzstark -- July 04, 2001
The CURTA Registry continues to grow -- July 04, 2001
A new look for the main page -- May 23, 2001
Examples were added to the Curta date calculation page -- May 17, 2001
Added pictures to the Display Types page -- May 14, 2001
Another CURTA Article -- CURTA 2000 -- November 14, 1999
More CURTA E-mails -- More Curta trivia. . . -- November 14, 1999
More CURTA E-mails -- Further Curta trivia -- November 14, 1999
More CURTA E-mails -- The Curta Metal -- November 14, 1999
More CURTA E-mails -- The Curta Metal -- November 14, 1999
More CURTA E-mails -- Curta Repair -- November 14, 1999
More CURTA E-mails -- Gun shops as sources of tools and materials -- July 26, 1998
More CURTA E-mails -- Gunshops - and calculators -- July 26, 1998
More CURTA E-mails -- Re: Curta decimal pointers, springs, etc. -- July 26, 1998
More CURTA E-mails -- Re: Gunshops - and calculators -- July 26, 1998
More CURTA E-mails -- Making springs: Wear safety glasses! -- July 26, 1998
More CURTA E-mails -- Lacquer sticks (Was: Re: Curta cleaning) -- July 26, 1998
More CURTA E-mails -- Curta cleaning - follow on -- July 26, 1998
More CURTA E-mails -- Re: Curta cleaning - follow on -- July 26, 1998
More CURTA E-mails -- Cleaning and lubing my Curta - final installment (I'm pretty certain) -- July 26, 1998
More CURTA E-mails -- Alcohol for cleaning - stylii for Troncets & Lightnings -- July 26, 1998
More CURTA E-mails -- Re: Alcohol for cleaning -- July 26, 1998
More CURTA E-mails -- Two Curta "tips" -- July 26, 1998
The Pentagon Music Site -- July 08, 1998
Another New CURTA E-mail -- Outgassing inside the case -- July 08, 1998
Another New CURTA E-mail -- Curta Serial Numbers & Dates; also details; outgassing -- July 08, 1998
Another New CURTA E-mail -- Re: Outgassing -- July 08, 1998
Another New CURTA E-mail -- Curta decimal pointers, springs, etc. -- July 08, 1998
Another New CURTA E-mail -- Curta Cleaning -- July 08, 1998
Classic and 20 series variants -- March 22, 1998
New 30 series data points -- March 22, 1998
Help me to complete my TI Collection -- February 23, 1998
Help me to complete my HP Collection -- January 25, 1998
Calculator Collectors, Data, Classifieds, Lists, and Forums -- January 25, 1998
New 30 series data points from Dan McDonald -- January 25, 1998
New 30 series data points from Alex Knight -- January 19, 1998
Article - Curt Herzstark and his Pocket Calculator CURTA -- January 17, 1998
Frank Boehm's -- Calculator Site -- January 04, 1998
3rd EDITION! -- A Guide to HP Handheld Calculators and Computers -- Oct 29, 1997
A look inside Hewlett-Packard's HP-11C -- Oct 23, 1997
Information on some of my Desktop calculators -- Oct 23, 1997
A new calculator site - Calculator Technology Archive -- Oct 23, 1997
CURTA T-Shirts for sale -- Oct 16, 1997
New Source for CURTA Repair Manual -- Oct 12, 1997
30 Series Derivations -- Oct 08, 1997
Electronic Displays Update -- Oct 07, 1997
Two French manuals translated by Andries de Man -- Oct 05, 1997
HP-95 Palmtop: Power in a small package -- September 15, 1997
Microcode: Electronic Building Blocks For Calculators -- September 15, 1997
Another New CURTA E-mail -- Cleaning CURTAs -- September 11, 1997
New CURTA E-mail -- CURTA - Simple cleaning -- September 11, 1997
Updates to the CURTA Literature Listing -- September 10, 1997
A new HP Site -- August 25, 1997
A really good CURTA article from Product Engineering magazine -- August 05, 1997
New TI Model and Hot Links to TI added -- July 23, 1997
TI-86 -- TI's newest graphing calculator -- July 23, 1997
Updates to the CURTA Literature Listing -- July 22, 1997
TI Calculator Accuracy
is a discussion of algorithm errors that were present in early TI Calculators. -- July 20, 1997
CURTA Production Date by Serial Number
contains a discussion and two formulas to calculate approximately when your CURTA was made. -- July 20, 1997
Made in USA...finally!
is an article on the development of the HP-35 from the "THE ELECTRONIC ENGINEER", March 1972. -- July 18, 1997
The Calculating Machines Numbers -- May 31, 1997
More Links -- May 31, 1997
Some HPs found, more needed -- May 29, 1997
"House Cleaning" -- I moved images to an images subdirectory and I renamed my html files for consistency. -- May 21, 1997
Electronic Displays -- May 20, 1997
More Info on TI Scientific models -- May 11, 1997
Link to Gene Wright's Page -- May 11, 1997
All 4 CURTA US Patents On-Line -- May 11, 1997
Disassembling a CURTA Calculator
Pictures now included with the CURTA Manual
Hewlett Packard Articles by Wlodek Mier-Jedrzejowicz
New TI Models Discovered
Calculator Books Added (below)
and
on the HP Page
The HPCC Conference
Updates to the CURTA Literature Listing
New CURTA E-mail
CURTA Manual Reprints
The Calculator Reference by
Rick Furr (rfurr@vcalc.net)
Back to The CURTA Calculator Page
Back to The Calculator Reference