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

PC-100 Print Cradle

• 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-340	340-014338 P	Panaplex four-function, switches for Chain/Const and decimal selection 2/4/F
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-410		desktop four-function panaplex with memory
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