2500 - II (1974): Similar to 2500 but has % key and cheap logo strip that tends to peel off. It has the same green case color as the other. "Texas Instruments" and "rare" sounds like a contradiction. TI appeared to like orange. This TI Design leverages an Ethernet-based TM4C129x (formerly known as Tiva) microcontroller to implement an S2E converter that allows quicker time-to-market and cost savings. The SR-51 had been marketed only a few months when this happened, so it's quite rare. Home; Personal Lines. Identifying and deciphering the part number. 200000: Nov. 1964: Serial numbers for Reynolds instruments were reset in 1964 after the company moved from Cleveland to Abilene, Texas. 1270 (1976): Colorful model. 2510 Texas Instruments provide information up to 87 component parts for your lookup. In the 2nd version, the logo moves down to the upper area of the faceplate. (1973): Similar to 2500, but chronologically sandwiched somewhere between the 2500 and 2500 - II, probably failing to land a market niche in TI's crowded product line. Truckers Insurance; Builders Risk; General Liability; Resources. A count through my own collection revealed over 40 different models and there are many I don't have! No memory or fixed decimal switch as on 2550. There are many rare models and a few less-common variations of well-known models. SR-16 (1974): Superseded by the SR-16II within a year. No doubt the best-selling calculator ever. Check the serial number of your item: Have it Back incorporates nearly all freely available serial numbers. model number). Similar styling to the 1200, but a little higher quality. (1975): Also often found in the original box. Fender's production methods from the early 1950s resulted in the serial numbers sometimes not being consecutive. 5050 (1975): I believe this was the 1st handheld printing calculator with vertical printing. Texas Instruments Calculators (1972-79) How rare are they? Related resources. TI made calculators for sale under other names, including Radio Shack. These are more difficult to locate than the TI versions. Interestingly, some of the earlier models, such as the SR-10 and SR-50, appear to be easier to find Apparently there are also differences in the display angle and brightness (which resulted in Consumer Reports' action). An SR-10 in near mint condition would definitely qualify as "Difficult". 58 (1977): Replaced with the 58C in 1979. Some models are difficult to find in good condition. The judgments are based on my experience searching through flea markets, garage sales, thrift shops, and collector lists (and encountering How can you tell the difference? 1025 (1977): Often found in the original box. collection revealed over 40 different models and there are many I don't have! A Serial-to-Ethernet (S2E) converter provides a simple solution to solve the challenges posed by such EE's. The only way to definitively date U.S. instruments with “V”-prefix serial numbers is to remove the neck and check the butt end of the neck heel for a production date, which may be stamped or written there. Finally, TI calculators often have a data code stamped on the back. Lookup Mobile Home | Manufactured Home Serial Number In Texas. 1680 (1977): This one could re-display previous entries and allowed some primitive editing of those entries. (1973): Again, two versions. ): Child's calculator similar to Little Professor. Texas Instruments Parts. 1982 saw the introduction of the U.S. Vintage Series instruments and “V”-prefix serial numbers. This calculator is also more stylish than any of TI's other advanced models. However, this is not the case. (1973): There are two versions. are rarely found with the original box and paperwork; out of dozens of TI 30s that I have seen, only 1 or 2 have been new-in-box. DataClip (1977): LCD calculator shaped like a 6-inch ruler. 1200 "Lady" (1975? An Index to Serial Number Lists. Business Analyst (1976): The first in a long line of popular financial calculators. Uses disposable batteries. Where to find the serial number The serial numbers have been placed on or in the guitar in different places over the years. It appears to consist of a two-digit week and two-digit year, such as "4376", for the 43rd week of 1976. Deciphering a chip's part number is a very ambitious process and most of the time, typing the whole part number in a search engine gets you nowhere. Utilizing this database, you can verify before or after purchasing an item if said object has been marked as missing or stolen. A count through my own Click links below to view package drawing and footprint information, or click on the part name for complete product folder or more device information. These include: Concept 1 and 2: same style as 1200 series but with a two-tone rust and gray faceplate. Search information on TI products by part number, TI package name or pin count. You may search by actual marking on a TI part, or by a TI part number. 1050 (1977): Another entry in the 1000/1025 line, but not nearly as plentiful. 58C (1979): Model 58 with continuous memory. Please enter TI package name or part number with pin count. The year of introduction is noted in parentheses following the model number. Eventually sold at give-away prices. The Montgomery Ward calculators are especially fascinating as they are not obvious clones yet can be identified as related to specific TI models. The following is a list of 7400-series digital logic integrated circuits.In the mid-1960s, the original 7400-series integrated circuits were introduced by Texas Instruments with the prefix "SN" to create the name SN74xx. © Text & photographs copyright Nigel Tout   2000-2020  except where noted otherwise. Search by. 150 (1974): Possibly the rarest TI. Marking on the part TI part number Search phrase . 1200 by Larry GilbertReprinted from The International Calculator Collector. SR-10 - 2nd version 2500 Datamath - 1st version (1972): TI's first pocket calculator. 1-2 KeyStone Architecture Serial Peripheral Interface (SPI) User Guide SPRUGP2A—March 2012 Submit Documentation Feedback Chapter 1—Introduction www.ti.com 1.1 Purpose of the Peripheral The SPI is a high-speed synchronous serial input/output port that allows a serial bit This model is borderline moderate/difficult. 5050M (1976): Handheld printing unit with memory. 85000: 1964: SN 85459 last known Reynolds serial number with Cleveland-made parts. Unusual orange display. 1600 (1976): The 1600 series consisted of slimmed-down models that prefigured the styling of LCD units. (1975): TI replaced the SR-50 and SR-51 in mid-1975 with the "A" models. price wars of the mid-70s. The “Database” is probably the biggest source of typewriter serial numbers in the Internet today. 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