TI Museum

• Calculator
• Cartridge
• shop
• paintings

🏪  SHOP

🛍️ On this page, the volunteer organization objects for sale are displayed.
💰 The proceeds will be used to support the activities of the volunteer organization.
❤️‍🔥 Public fundraising is increasingly recognized today as a fundamental tool to support the initiatives of associations.

📢 Here are the ads! 📦 For shipping, contact me ✉️ sending your address 🏠 for a quote 💬💶!!!

  🎨  Paintings

In this section you will find reproductions in ink and acrylic on 40x60 cardboard ,

donated by the artist Lia Jonescu  

 

Electric Heart of Texas Instruments  80 Eur  each + ask for shipping	The Birth of Digital Dreams 80 Eur  each + ask for shipping
Orbit of Digital Time  80 Eur  each + ask for shipping	The Talking Chip  80 Eur  each + ask for shipping
Explosion of Digital Logic  80 Eur  each + ask for shipping	Math in Color  80 Eur  each + ask for shipping
Calculator Dreams 80 Eur  each + ask for shipping

     

---

🎮    Cartridges TI-99/4A

 

---

🖥️   Home Computer TI-99/4A

 

ADAPTER for Joystick Atari   25 Eur + ask for shipping	Cassette Cable + TV adapter 25 Eur + ask for shipping
Mini PHA 2037 V.2.0 ( Pal Scart Interface ) 90 Eur + ask for shipping	EPROM adpater 2532 to 2732 for TI-99/4A    25 Eur + ask for shipping
Cartridge without EPROM 25 Eur + ask for shipping	Cartridge Games Atarisoft  35 Eur + ask for shipping  + 3d printed shell 40 Eur + ask for shipping
Ram Expansion 32 Kbyte with 3D printed shell 50 Eur + ask for shipping	Final Grom 99 with 3d printed shell 90 Eur + ask for shipping
3D printed slider to turn on the TI-99/4A 2 pcs 10 Eur + ask for shipping

  

---

🧮   Texas Instruments Calculators

 

NEW BATTERY PACK BP1 ( SR-50, SR-51, SR-50A, SR51A, SR52, SR56, TI-58, TI-58C, TI-59 ) NI-MH 1800 mA 30 Eur + ask for shipping	NEW BATTERY PACK BP7 ( TI-51-III, TI-55, TI-57, TI-42 MBA, MBA) BP8 ( SR-40, TI-15, TI-30, TI-31, TI-33, TI-41, TI-45, BA, BA1, Money Manager, Programmer  BP9 ( TI-45 ) 40 Eur + ask for shipping
NEW COVER ( TI-51-III, TI-55, TI-57, TI-42 MBA, MBA ) ( SR-40, TI-15, TI-30, TI-31, TI-33, TI-41, TI-45, BA, BA1, Money Manager, Programmer ) ( TI-45 ) 5 Eur + ask for shipping	Stickers Grillo Parlante N. 2 stickers 10 Eur + ask for shipping

  

 

 

---

 🧮  # Texas Instruments

 

CALCULATOR Toshiba SLC8260  20 Eur + ask for shipping

Game Handheld A very simple, handheld game with a super-vintage LED display, but with modern components. You can play Tetris, Invaders, Snake, and Cars. It features a score display, brightness adjustment, and audio selection. Batteries included.    25 Eur + ask for shipping

---

 

The commercial life of the TI-99/4 was however short with the announcement of its replacement with the 99 / 4A which would then be presented at the "Consumer Electronics Show", on June 30, 1981.

In order not to disappoint its customers, Texas Instruments offered to replace the old computer / 4 with the new Texas Instruments TI-99 / 4A totally free of charge but on the condition that the purchase of the / 4 had been at least 6 months before. of the release of the new model, only the shipping costs were charged to the customer.

The company T.I. tried to market the Texas Instruments TI-99/4 also in Italy and France, but due to delays, its distribution was immediately interrupted to make way for the / 4A already present in the US market. In any case, in Europe the 99/4 found no interest in the market also precisely because of the monitor alley which had a US NTSC standard and therefore problematic for European standards. Texas Instruments, strangely, never officially announced the discontinuation of the TI-99/4. In total, around 25,000 units were produced.

TI-99/4 with inernal Speaker. In the end we also managed to get a nice TI-99/4 with internal speaker and volume control. In this photo a 32Kbyte memory expansion and an RS232 interface complete the set.

Here are the original manuals and the masks to use for playing or teaching.

A detail from the inside, the PCB with an operational amplifier, used to drive the internal speaker via the volume slider potentiometer, which is located on the bottom of the TI-99/4.

Compared to all the others, this version has a very important peculiarity to keep in mind: the power supply that provides the three voltages (+12vdc, +5vdc and -5vdc) is not located inside the computer but outside in a plastic box as shown in the photo.

 It is important to note that the 4-pin connector has a different sized pin than the other 3 pins.

• TI-99/4A
• Audio Guide

Home Computer TI-99/4A

Audio Guide

Home Computer TI-99/4A  Enhanced version of the TI-99/4 model marketed at the end of 1979, it was placed on the market starting from June 1981, had a certain diffusion especially in the USA but due to the commercial war with Commodore International it was unable to achieve a significant number of sales, especially due to the success of the Commodore 64, and production ceased just two years after launch. It supports lowercase writing, unlike some machines of the time which required specific expansion, and a full-travel keyboard, and is based on the TMS-9900, a 16-bit CPU clocked at 3 MHz. The graphics are 16 colors with a video resolution of 256 x 192 pixels, organized in 32 columns x 24 rows, with characters (ASCII or user definable) based on 8 x 8 pixels.
Built around a single block, which contains the CPU, the motherboard and the cartridge slot (SSC Solid State Cartridge), it also had a 5.25" floppy disk drive, a serial card, among other options. RS-232 equipped with two serial ports and one parallel, a P-Code card for supporting the Pascal programming language, a thermal printer, an acoustic coupler, tape drives for saving and loading data (on normal cassettes), a pair of joysticks and a 32 kB memory expansion. The peculiarity of the machine was that it was sold already equipped with a monitor (a modified version of a 13" Zenith Color TV), as the RF adapter for connection to a normal TV it never obtained certification from the Federal Communications Commission. In Italy it was sold without a monitor and the video output was fully compatible with normal televisions. Another peculiarity for the time was the presence of an optional speech synthesizer, exactly like the one present in the Atari 2600, which allowed the software or games to be equipped with speech synthesis. The synthesizer was provided free of charge to customers after the purchase of a certain number of cartridges, and was widely used in several video games written by TI itself.

Wikipedia TI-99/4A

           TI99-4A    Main BOARD
Released:June 1981 Price: US$525 (without monitor) How many:2.8 Million
CPU:TI TMS9900, 3MHz Memory:16K RAM, 26K ROM Sound: 3: channels + effect Joystick: 2
Display:Video via an RF modulator 32 characters by 24 lines text 192 X 256, 16 color graphics
Ports:ROM cartridge (on front) Data storage cassette Audio/Video output Joystick input CPU bus expansion
Peripherals:Speech Synthesizer Peripheral Expansion Box Data storage cassette 300 baud modem
OS:ROM BASIC