TEXAS INSTRUMENTS
I am interested in collecting old calculators, which you can read about here.
Other things I'm looking for are listed here.

Repair and parts for older TI calculators

I recently wrote to Texas Instruments regarding the TI-59 and the PC-100A printer cradle. They sent this in response:

Thank you for your recent correspondence. The Texas Instruments SR-59 has been out of production since 1986, and we no longer have the piece parts and tools to provide service for this calculator. However, for service information regarding your SR-59, we suggest that you contact this company:

Romax Enterprises
1722 N Greenville
Richardson, TX 75081
1-972-690-9064

I hope you find this information helpful. If you have further questions or comments please feel free to contact me at your convenience. Please copy this message in your response and send directly to ti-cares@ti.com.

Manuals and Guides

Manuals and guides for more recent TI calculators are available for download at http://education.ti.com/us/global/guides.html

PC-100 Print Cradle

The print cradle is disclosed under US Patent 4,038,535, issued on July 26, 1977. The disclosure includes block diagrams and pin identifications for the calculator-printer interface.

  • PC-100A added support for the TI-58 and TI-59 calculators
  • PC-100B and PC-100C do not support the SR-52 and SR-56 calculators

Listing

Model Serial Number Notes
BA-35 ???
1260982
1890671
LCD, "Student Business Analyst / Constant Memory"
one with case and quick reference guide
BA-55 ???
1969566
Business Analyst
Business Analyst 0002650
0016403
058649
4050435
8835189
red LED with financial functions
Business Analyst I 0430868
0432808
4884633
5884062
7734618
at least one with original case and instruction booklet
Business Analyst II 0093874
1883734
5177697
LCD financial with "constant memory"
three with original case, two with instruction booklet
Executive Business Analyst BA-III 5177697 LCD financial
with original case
Cessna Sky/Comp 9786869 flight calculator
More information
Citation similar to TI-1025
DataChron 57610 eight digit LCD calculator/clock/alarm/timer. Circa 1977
with case and instruction booklet
exactra 21 2100 271142
exactra 22 2200 005617 early eight-digit red LED
with instruction booklet
Explorer Plus
Little Professor 5597880 LED child's toy, does math "tests"
with original box
The MBA 0017353
178138
689219
072745
uses battery pack BP-7 and AC-9131 adapter/recharger
Money Manager 1207818 Eight digit red LED financial
Programmer 013913
074751
3063454
3469961
3690926
7711084
Red LED with Decimal, Octal and Hexadecimal conversions, along with boolean operators.

One with case and manual
Uses battery pack BP-8

Spelling B with book-like case
Spirit of '76 S76-184282 bicentennial LED
SR-10 339397
489945
552489
450164
SR10 841471
SR10-894473
SR-10118261
SR10 1073340
very early red LED wuth inverse, square and square root
SR-11 11265536
11386257
11479961
11667576
149643
early wedge-shaped red LED with inverse, square, square root and Pi (although no trigonometric functions
SR-16 SR-16 007410
SR-16 068392
SR-16 106505
SR-16 133291
SR-16 134408
red LED, last of the wedge-shaped early TI series
one with case only, two with case and instruction booklet, another with box, case and AC 9130 charger
SR-20 SR20 0016563
SR20 0023038
AC-powered "engineering desk calculator", panaplex display
one with cover and instruction manual
SR-22 0002729
0004991
0006085
Decimal/Hexadecimal/Octal floating point calculator
The design of this calculator is covered in U.S. Patent number 4,121,760.

I'm looking for an AC adapter, part number AC9222.

SR-40 1432968
43267
021590
281060
early LED, some cases and manuals
SR-50 9014783
SR50 0634092
SR50 0143574
SR-50 0003119
SR-51-II 2212565
6637791
6884165
SR-52 049924 early programmable
More Information
SR-60 4059 desktop scientific programmable
TI-1000 I have three of these
TI-1025 green LED four function with memory and percent
I have seven of these, one with a case
TI-1031 -blank-
-blank-
LCD four function with memory, percent and square root
with case and instruction sheet
TI-1100 0739492 1983-era LCD with memory, percent and square root
TI-1200 1980065
1200 861156
1200 1373487
TI-1250 0939300
A 1603733
B 0055384
1250 083501
0555350
1139145
I have a beat-up box for at least one of these
TI-1265 with TI AC-9180 AC Adapter
TI-1400 A 330265 early LED four function plus percent
with AC 9180 adapter
TI-1500 1500 039115 early LED four function plus percent
with original box, case, AC 9140 adapter and instruction book
TI-1505 C-0886A LCD four function plus percent and square root, circa 1985
with original box, case, and instruction book
TI-1750 332967
525712
773816
793159
old LCD calculator, with case and instructions
TI-1750-II 66337 old LCD calculator, with case
TI-1766 287545
290556
solar-powered eight-digit LCD calculator with memory, square root and percent
TI-2200+ LCD checkbook balancer
TI-25 006026 scientific LCD
TI-2510 2510080813 with case and AC-9120 adapter
TI-2550 2550028753
2550143809
2550367265
2550442084
2550526282
2550148849
four-function red LED with memory and percent
at least one case and instruction booklet
TI-2550-II Datamath II 106744
TI-30 0049309
144297
488498
811401
1023520
1971447
2779725
3023497
7604985
Probably one of the most common LED calculators
five with faux denim cases, at least two instruction manuals
TI-30-II 308088 LCD scientific
with case and instruction booklet
TI-30-III 1066803 LCD scientific
TI-34 RCI 120195
(blank)
solar-powered scientific LCD
TI-35 3246620
3310002
3436047
5565424
7847404
"Constant Memory" scientific LCD
There are at least two different styles of this model. One has printing on the keys and a "protected" On key, the other has plain keys with the function silkscreened above it, with red OFF and green ON/C lettering.
TI-3500 3500 76797 S
3500 183980 S
desktop
TI-40 2877322 LCD scientific handheld
with vinyl case
TI-4000 4000111681S desktop
TI-45 106590 new in box
TI-50 1229761 LCD scientific
in wallet-style case with instruction booklet
TI-5020 198105 LCD solar, not really "vintage"
TI-55 1033185
9535649
with case
TI-55 II 0219108
-blank-
LCD programmable scientific
one with case and Quick Reference Guide
TI-55 III 2365149
2365396
TI-57 1371635
8895408
9461530
uses battery pack BP-6, except for one of these which hash been hacked to use a 9 volt battery
TI-58 9654070 with master library module, case and master library quick reference
I've got another one of these attached to a PC-100A, but no key to release it
TI-58C 1687375
3446676
with master library module and PC-100C printer
TI-59 4411430 with master library module
TI-60 Scientific LCD, programmable
TI-65 ???
???
???
???
Technical Analyst, LCD, with protective case
have four, one in the original box with Guide Book and Quick Reference; two others with manuals
TI-66 203819
434709
466334
473728
Programmable, LCD, with manuals and protective case
TI-68 (several) Scientific formula, LCD, with protective case
TI-74 Accessories Mathemtics Library and Statistics Library
modules in original boxes with instructions
TI-81 1033104
13052236
LCD graphing calculator
TI-82 13024418 LCD graphing calculator

Comments to Dan Veeneman

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Last updated July 30, 2011