• Commodore

Model: 301
Battery:  4 x 1,2 ni-cd huasa
Adapter:  Adapter AC-DC 801 
Year: 1973
Chip: TMS0103NC
Manual:
Info: made in Japan 

• Compucorp
• Sumlock

Model: 324G Programable (two 80-step memories).
Battery:  4 x D cell rechargeable
Adapter:  3490059 6.5V DC
Year: 1973
Chip: Board 1) Texas Instruments TMC 1864NC, TMC 1871NC, General  Instruments 8KR029, 8KR03A, Intel 4x 2102, AMD 3x 93L0059X. Board 2) Texas  Instruments TMC 1866MC, TMC 1867NC, TMC 1870, TMC 1872NC. Board 3) Texas Instruments TMC 1869NC, TMC 1884NC.
Manual:
Info: The Compucorp 324G could be called the best engineered calculator of its time. Introduced in the year 1972 the 300-line from Computer Design Corporation (CDC) were far ahead of their time. CDC, Los Angeles designed an universal data-processor with external ROM's for the operating system and mathematical functions and external RAM for data- and program-storage. Made in USA

• Plc Programmer

Model: 510 programmer
Battery:      
Adapter: 
Year: 
Chip:
Info:  PLC programmer

• Plc Programmer

Model: 5TI programmer
Battery:      
Adapter: 
Year: 
Chip:
Info:  PLC programmer 

• Canon

Model: 8-T
Battery:  2 x AA
Adapter:  
Year: 1976
Chip: ZA0536
Manual:
Info:The Canon Palmtronic 8-T is an unique sexagesimal calculator dealing not only with decimal numbers but also with Hours, Minutes and Seconds./ Made in Japan 

• TMS0972NL
• Sears

Model: sears 82
Battery: 9 volt
AC adapter: 3 volt adapter
Year: 1978
Chip: TMC0972NL
Info: made in Japan

• TMS0972NL
• National Semiconductor

Model: 835A
Battery:  9 v
Adapter: 9v dc
Year: 1976
Chip: TMS0972
Info: National Semiconductor

• TMS0972NL
• Privileg

Model: 842M
Battery: 9 volt
Adapter: 
Year:  1978
Chip: TMS0972
Info:  Is a nearly perfect copy of the TI-1250

• Bowmar

Model: 905
Battery: 3 x 1,2 ni-cd
Adapter: 6 volt AC
Year: 1973
Chip: TMS0103NC  
Info: 

• Mechanical Calculator

The abacus (pl: abaci or abacuses), also called a counting frame, is a hand-operated calculating tool of unknown origin used since ancient times in the ancient Near East, Europe, China, and Russia, millennia before the adoption of the Hindu-Arabic numeral system.

The abacus consists of a two-dimensional array of slidable beads (or similar objects). In their earliest designs, the beads could be loose on a flat surface or sliding in grooves. Later the beads were made to slide on rods and built into a frame, allowing faster manipulation.

Each rod typically represents one digit of a multi-digit number laid out using a positional numeral system such as base ten (though some cultures used different numerical bases). Roman and East Asian abacuses use a system resembling bi-quinary coded decimal, with a top deck (containing one or two beads) representing fives and a bottom deck (containing four or five beads) representing ones. Natural numbers are normally used, but some allow simple fractional components (e.g. 1⁄2, 1⁄4, and 1⁄12 in Roman abacus), and a decimal point can be imagined for fixed-point arithmetic.

Any particular abacus design supports multiple methods to perform calculations, including addition, subtraction, multiplication, division, and square and cube roots. The beads are first arranged to represent a number, then are manipulated to perform a mathematical operation with another number, and their final position can be read as the result (or can be used as the starting number for subsequent operations).

In the ancient world, abacuses were a practical calculating tool. Although calculators and computers are commonly used today instead of abacuses, abacuses remain in everyday use in some countries. The abacus has an advantage of not requiring a writing implement and paper (needed for algorism) or an electric power source. Merchants, traders, and clerks in some parts of Eastern Europe, Russia, China, and Africa use abacuses. The abacus remains in common use as a scoring system in non-electronic table games. Others may use an abacus due to visual impairment that prevents the use of a calculator. The abacus is still used to teach the fundamentals of mathematics to children in most countries.

WIKIPEDIA Abacus

• Calculator
• Adapters

with permission of the author     www.datamath.org

• Acorn
• 6502

The Acorn Electron is a budget version of the BBC Micro educational/home computer introduced by Acorn Computers Ltd on 25 August 1983. It has 32 kilobytes of RAM, and its ROM includes BBC BASIC v2 along with its operating system.

The Electron was able to save and load programs onto audio cassette via a supplied converter cable that connected it to any standard tape recorder that had the correct sockets. It was capable of basic graphics, and could display onto either a television set, a colour (RGB) monitor or a "green screen" monitor.

For a short period, the Electron was reportedly the best selling micro in the United Kingdom, with an estimated 200,000 to 250,000 machines sold over its entire commercial lifespan.

Model: Acorn   
Adapter: External PSU, 19V AC
Year: 1983
Keyboard: 56-key cwitch keyboard
Cpu: Synertek SY6502A clocked at 2 MHz when accessing ROM and 1 MHz when accessing RAM Speed:  2 mhz CO-processor: x Ram: 432K RAM 32K ROM Sound: 1 channel of sound, 7 octaves; built-in speaker. Software emulation of noise channel supported 
Display: RF modulator, composite video, RGB monitor output, 160×256 (4 or 16 colours), 320×256 (2 or 4 colours), 640×256 (2 colours), 320×200 (2 colours – spaced display with two blank horizontal lines following every 8 pixel lines), 640×200 (2 colours – spaced display)
Size - Weight: 58 mm x 343 mm x 160 mm
I/O ports: Expansion port, tape recorder connector (1200 baud CUTS variation on the Kansas City standard for data encoding, via a 7-pin circular DIN connector), aerial TV connector (RF modulator), composite video and RGB monitor output
Media: Cassetta, floppy disk (opzionale), cartuccia ROM (opzionale) OS: Acorn MOS V.1.0
Peripherals: x
Price: 133 £ (1983)

 Wikepedia Acorn Electron

• History
• Acorn

• Mechanical Calculator

The Addiator is a mechanical adder produced by the Addiator Gesellschaft of Berlin from 1870 to 1982. It consists of a series of racks enclosed in a metal container and operated by a stylus. The Addiator, produced in dozens of models and millions of copies, was a great success, so much so that its name was often used as an antonomasia to indicate all rack adders.

• Mechanical Calculator

The Addometer is a mechanical adder which in terms of use and external appearance resembles Blaise Pascal 's pascaline .

The adder looks like a heavy ruler, about 30 cm long. Circular slots allow you to operate numbered wheels placed inside, through special holes made on the wheel. Each hole corresponded to a number written in large characters on the inside of the slot and its complement to 9, written on the outside in smaller characters. To add, the tip of the stylus was placed in correspondence with the large numberand the disc was rotated clockwise. To subtract, on the other hand, the stylus was placed in correspondence with the external number and performed a counter-clockwise rotation. A much simplified mechanism compared to that of Pascalina allowed the carry over of the tens. The result appeared automatically and it was possible to reset it by pulling the tab on the right of the instrument. 

It was produced from 1928 until the 1960s by Reliable Typewriter and Adding Machine Co .. The numbers were imprinted on perforated and toothed discs. These were very cheap and reliable instruments, so much so that they were covered by a one-year warranty, which was quite unusual for the time.

• History
• Nestler

• Pong
• History
• Atari

• Console
• TMS1000
• Coleco

Model:  Amaze-a-Tron       
Battery: 4 x  1,5 C + 2 x 9 volt                       
AC adapter:
Year: 1979                                   
Chip: TMS1000 / MP3301
Info: Amaze-A-Tron is an electronic board game with eight variations that revolve around a hidden computer-generated maze. The board consists of a five-by-five grid of squares numbered 1 to 25.

At the beginning of the "Opposite Start" game variation, the computer selects a starting square (identified by number) for each player. The players then race to see who can get through the maze first and reach the opponent's starting square, through trial and error. The players alternate taking turns moving through the maze. A player can move through any number of squares until the player runs into a wall, at which point the other player gets to take a turn.

There are two solitaire maze games and six two-player games. In the "Blind Alley" variations, the maze includes dead-ends that force a player to backtrack to get back on the correct path. In the "Back to Start" variations, when a player runs into a wall the player's pawn is returned to the starting square, adding a memory element to the game. In the standard "Maze" game, both players start on the same square and are racing to reach the same destination square.

The plastic game board features a two-digit LED readout, red and green LED's (which correspond to the color of the opposing playing pieces), and a storage compartment for the four playing pieces (plastic pawns and start/finish space markers). A 9-volt battery or AC adapter is required. 

• Hands Watch

Model: Limited Citizen Code: 
Battery:  lr521 or sr521
WCase: gray plastic case  WBand: cream leather  Face: white
Manual: No  Box: Yes  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: Japanese limited edition watch 093/100 ,this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved. 

• Hands Watch

Model: Analogic DLP round Code: OK
Battery:  lr521 or sr521
WCase: golden tone metal  WBand: black leather  Face: black
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.  

• Hands Watch

Model: Analogic DLP square Code: OK
Battery:  lr521 or sr521
WCase: golden tone metal  WBand: black leather  Face: black
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.

• Hands Watch

Model: Analogic DSP square Code: OK
Battery:  lr521 or sr521
WCase: steel tone metal  WBand: black leather   Face: black/green
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.

• Hands Watch

Model: Analogic one hand Code: OK
Battery:  lr521 or sr521
WCase: white tone metal  WBand: matching bracelet  Face: white
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: This watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.  

• Hands Watch

Model: Analogic TI express Code: OK
Battery:  lr521 or sr521
WCase: golden tone metal  WBand: black leather   Face: white
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.

• Hands Watch

Model: Analogic Mos Memory Code: OK
Battery:  lr521 or sr521
WCase: white tone metal  WBand: white tone metal   Face: white
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time, second and Day
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved. 

I have to thank Gaetano Perrella, former employee of Texas Instruments in Rieti for the donation!

• Hands Watch

Model: Analogic TI square Code: OK
Battery:  lr521 or sr521
WCase: white tone metal  WBand: black leather  Face: white
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.

• Hands Watch

Model: Analogic TWO hands Code: OK
Battery:  lr521 or sr521
WCase: golden tone metal  WBand: brown leather  Face: white
Manual: No  Box: No  Light: No
Year: xxxx Price: xxxx
Function:  Time and second
Info: the peculiarity of this watch is to have two dials with independent hands, this watch was born as an advertising object, or was given as a gift to employees for the objectives achieved.  

• Basic
• Datamath
• Calculator
• History

• Rare
• Apple
• Audio Guide

Apple Computer 1

Audio Guide

The Apple Computer 1, originally released as the Apple Computer and known later as the Apple I or Apple-1, is an 8-bit desktop computer released by the Apple Computer Company (now Apple Inc.) in 1976. It was designed by Steve Wozniak. The idea of selling the computer came from Wozniak's friend and Apple co-founder Steve Jobs. The Apple I was Apple's first product, and to finance its creation, Wozniak sold his HP-65 calculator for $500 and Jobs sold a second hand VW Microbus,  for a few hundred dollars (Wozniak later said that Jobs planned instead to use his bicycle to get around). Wozniak demonstrated the first prototype in July 1976 at the Homebrew Computer Club in Palo Alto, California.

Production was discontinued on September 30, 1977, after the June 10, 1977 introduction of its successor, the Apple II, which Byte magazine referred to as part of the "1977 Trinity" of personal computing (along with the PET 2001 from Commodore Business Machines and the TRS-80 Model I from Tandy Corporation).

Finally my version of APPLE I with all the possible Texas Instruments chips!

Wikipedia APPLE 1 

Replica of the probable APPLE 1 A prototype. The motherboard is very different from the production units. The 6800 area is populated. There is no switch board above the 74154. No connectors. Orange capacitors. The logo is different. The chips are arranged in the same way as the production units, but the tracking lines are very different. For unknown reasons a change was made. According to the screenshots, the prototype worked.

APPLE 1 A Registry 

PSA DNA certified autograph !!!

 One of the things purchased in the American market is this photo, signed by Steve Wozniak and certified by PSA/DNA.

 This is one of the dreams, for us retrocomputer enthusiasts, sooner or later I'll assemble it!

Let's start with setting up a monitor for the Apple I

 this is the pcb we use for assembly

Some considerations on the computer. Looking at the long side PCB, you will see numbers at the bottom, ranging from 1 to 18, the same goes for the left side, you will see letters ranging from A to D.The combination of the letters on the left and the numbers on the bottom form a nearly perfect grid on the PCB, this is widely used in documentation among hobbyists to identify chips or circuit parts.

In principle it can be divided into three parts, at the top right there is the power supply with the three large Blue capacitors, at the bottom all the components including the references A1 to A18 and B1 to B18, the computer with the micro, ram, prom, etc... Above all the components included by references C1 to C18 and D1 to D18, the video or terminal part. This section works independently, because in effect it is like a copy of a terminal or teletype. These terminals, or teleprinters, take ASCII characters and print them on the screen, or print them on paper.

Then the computer part (bottom part) takes the ASCII characters one at a time and sends them to the video (top part), to be displayed. The heart of the video comes down to the character ROM at position D2, which contains the BIT patterns for 64 characters. These are the only characters that APPLE 1 can display. The screen is 40 columns wide x 24 rows, for a total of 960 characters.

In this phase you can see the complete pcb of the components relating only to the video terminal part. The problems encountered were, a faulty LM323 (it went into protection when I inserted more than 5 chips), a faulty SN74174 (it blocked the reset), the faulty video output transistor (Chinese).

 Here you can see how I fed the pcb the reset, of the video part, all random characters, then I gave a +5 volt on pin 13 of the keyboard.

 
Now it's time to insert all the remaining components, and connect a compatible keyboard. At this stage I only encountered a bad ram and a 7400 with a bent pin.

To do a little test, enter these lines of hexadecimal code:

0: A9 00 AA 20 EF FF E8 8A 4C 02 00 return

Type 0: A return in this way the memory locations with the hexadecimal values will be displayed

Type R return ( R means run the program)

Let's play with P-Lab Claudio's WiFi modem and Francesco's BBS

 For configuration, follow the instructions on the P-Lab website

 Insert the modem after configuring it for your WiFi network. Type the command C100R after resetting the computer. Check the connection to the previously configured wifi network. Type ATE1R command to get echo of typing.

Typing the command ATDT BBS.RETROCAMPUS.COM:6502 will start the connection to Francesco's BBS.

Fiddling with the BBS menus.

We too have our own page on Francesco's BBS

To connect to our page type ATDT BBS.RETROCAMPUS.COM:9005

 Here are some photos of the 2nd edition dedicated to Texas Instruments in the city of Rieti during the world chilli pepper fair, you can find the photos in the gallery!

• Rare
• Apple
• Audio Guide

Apple Computer 1

Audio Guide

Replica of the probable APPLE 1 A prototype. The motherboard is very different from the production units. The 6800 area is populated. There is no switch board above the 74154. No connectors. Orange capacitors. The logo is different. The chips are arranged in the same way as the production units, but the tracking lines are very different. For unknown reasons a change was made. According to the screenshots, the prototype worked.

APPLE 1 A Registry 

• Apple

The Apple IIc, the fourth model in the Apple II series of personal computers, is Apple Computer’s first endeavor to produce a portable computer. The result was a 7.5 lb (3.4 kg) notebook-sized version of the Apple II that could be transported from place to place. The c in the name stood for compact, referring to the fact it was essentially a complete Apple II computer setup (minus display and power supply) squeezed into a small notebook-sized housing. While sporting a built-in floppy drive and new rear peripheral expansion ports integrated onto the main logic board, it lacks the internal expansion slots and direct motherboard access of earlier Apple II models, making it a closed system like the Macintosh. However, that was the intended direction for this model — a more appliance-like machine, ready to use out of the box, requiring no technical know-how or experience to hook up and therefore attractive to first-time users.

Wikipedia Apple IIC

• Apple

The Apple IIe (styled as Apple //e) is the third model in the Apple II series of personal computers produced by Apple Computer. The e in the name stands for enhanced, referring to the fact that several popular features were now built-in that were formerly only available as upgrades or add-ons in earlier models. Improved expandability combined with the new features made for a very attractive general-purpose machine to first-time computer shoppers. As the last surviving model of the Apple II computer line before discontinuation, and having been manufactured and sold for nearly 11 years with relatively few changes, the IIe earned the distinction of being the longest-lived computer in Apple's history.

 Wikipedia Apple IIE

• Apple

The first generation iPod started the iPod market on October 22, 2001 with the slogan "1000 songs in your pocket". It had a black and white screen, 5GB and a click wheel with a menu button at the top, left and left and right buttons to the sides, a select button in the middle and in between the four buttons and the select button was where users moved their finger around the wheel to go up and down. A 10GB iPod was released on March 20, 2002.

The second generation iPod was released on July 17, 2002. It had the same style as the first generation iPod. At first, 10GB iPod and 20GB iPod were available for $399 and $499 and later a 5GB iPod came out for $299.  

Wikipedia Ipod Classic first generation 

• Rare
• Apple
• 5x1000
• Audio Guide

Apple Computer LISA 2/10

 Here you can see some of the photos taken during the Peperocnino World Fair in Rieti in 2025, where we exhibited the recovered Lisa!

Audio Guide

This Lisa XL was recovered with 5x1000 donations !

Apple Computer Lisa 2/10

Lisa Macintosh XL is a modified version of the Apple Lisa personal computer made by Apple Computer. In the Macintosh XL configuration, the computer shipped with MacWorks XL, a Lisa program that allowed 64 K Macintosh ROM emulation. An identical machine was previously sold as Lisa 2/10 with the Lisa OS only. Macintosh XL has a 400K 3.5" floppy drive and an internal 10 MB proprietary "Widget" hard drive with provision for an optional 5 or 10 MB external ProFile hard drive with the addition of a parallel interface card. The machine uses a Motorola 68000 CPU, clocked at 5 MHz together with 512 KB RAM. Macintosh XL was discontinued in April 1985.

Wikipedia APPLE Lisa 2/10 

New Life with new HD

Unfortunately, another thing you have to do with these older systems is replace the hard drive with a newer one. This is where VintageMicros comes in handy.

Special thanks to John for his help.

 Description

The X/ProFile provides an interface between the Apple parallel interface protocol and economical, readily available, and better performing IDE storage devices.

With the X/ProFile you can:

• Utilize economical and readily available IDE hard drives
• Use the Compact Flash socket as the storage media or for backup
• Use the Copy function for backup and experimentation
• Attain a performance boost

In addition, when using the X/ProFile, a much larger drive can be used with some operating systems -- you can use up to:

• 5 MB in Apple /// SOS and Lisa OS 1.0
• 10 MB in Lisa OS 2.0, 3.0, 3.1
• 16 MB in MacWorks XL
• 32 MB in MacWorks Plus 1.0.18 and Apple ][ ProDOS
• 2 GB in MacWorks Plus II

To maintain collector value, when mounting the X/ProFile in an original Apple product, no irreversible modifications are required. The universal form-factor allows mounting:

• internally in a Lisa 2 above the floppy drive
• in an original Apple ProFile case
• in another external case

Standard 40 pin IDE header and mounting holes allow easy installation of:

• a 3.5" hard drive, or
• a 2.5" drive (requires a common IDE cable adapter)

Compact Flash socket can be used for:

• copying data from/to an IDE hard drive for backup/restore and experimentation
• main storage media

 Floppy Emulator 

Let's connect a floppy emulator just remove the cable from the original floppy and connect it to the new one, I have to thank Paolo Cognetti for giving me this floppy emulator, I built a small adapter for the flat cable and, let's load MAcWorks 3.0, it will allow us to use the MAC software with the LISA.

We load one of the most played games in the world " Space Invaders ".

 TroubleShooting

We finally have a nice Apple Lisa too, this is the 2-10 model

The first thing to do is check the power supply, in fact we have replaced all the filter capacitors in both low and high voltage.

after a general check of the capacitors of the various CPU, I/O and RAM cards and that there were no obvious faulty or corroded parts, we began testing all the power supplies available.

 the main problem these machines suffer from is the breakdown of the boot EPROMs found on the CPU, in fact we have replaced them.

a general check was also carried out for the video and CRT part, to make it work we had to close the safety switches located under the front panel and the rear panel.

Let's fix the keyboard

 One problem that plagues this popular computer is the keyboard.

 After more than 40 years the pads that I know are inside each button have lost their conductivity, here you can see what they look like now!

All the pads need to be replaced, for the replacement we contacted TEXELEC.COM for the purchase.

A very important thing when removing the old pads and inserting the new ones is to pay attention when inserting the new pads inside the button. The button has four plastic tabs that lock the pad, make sure you hear the click.

Work finished.

 Let's fix Video Card and CRT

Surely after many years it is necessary to replace some capacitors and clean the trimmers with isopropyl alcohol that regulate the CRT video card.

Since the keyboard has been repaired, we can enter the service menu by pressing the keys (apple + s) at the same time. Press the 5 key to get the reticle.

The trimmers once cleaned with alcohol, must be calibrated, for ease mark the initial position. For this operation you need an alignment grid, apple code 077-8043. 

 ( R5 - contrast ), ( R34 - horizantal phase ), ( R-22 height ), ( R19 - vertical hold ), ( R2 - width ), ( R31- vertical linearity )

• Apple

The Mac Mini (stylized as Mac mini) is a small form-factor desktop computer developed and marketed by Apple Inc, positioned betwees only consumer desktop computer since 2005 to ship without a display, a keyboard, and a mouse. The machine was initially branded it as BYODKM (Bring Your Own Display, Keyboard, and Mouse), as a deliberate strategic process to pitch users to switch from PC running other operating systems such as Microsoft Windows and Linux.

The original Mac Mini was introduced in January 2005 as a base model to PowerPC G4 architecture. Announced in February 2006, the second-generation lineup featured advanced components and numerous internal software updates. The third-generation, unveiled in June 2010, brought forth a thinner unibody aluminum case and an HDMI port, more readily positioning it as a home theater device alternative to the Apple TV.

Wikipedia Mac Mini

• Apple

The Macintosh 512K is a personal computer manufactured by Apple and marketed from September 10, 1984 to April 14, 1986. The Macintosh 512K is the second computer (in order of time) of the Macintosh family and belongs to the first series of the classic Macintosh: it was presented as an update of the first Macintosh and has been replaced by the Macintosh 512K.

 Wikipedia Macintosh 512K

• Computer
• Z80
• Mattel
• Aquarius

• • Aquarius is a home computer designed by Radofin and released by Mattel Electronics in 1983. Based on the Zilog Z80 microprocessor, the system has a rubber chiclet keyboard, 4K of RAM, and a subset of Microsoft BASIC in ROM. It connects to a television set for audiovisual output, and uses a cassette tape recorder for secondary data storage. A limited number of peripherals, such as a 40-column thermal printer, a 4-color printer/plotter, and a 300 baud modem, were released. The Aquarius was discontinued in October 1983, only a few months after it was launched.us. 

Object is a memory and program cartridge expansion unit and 2 game controllers for the Aquarius home computer system in original system box. Game controllers in original plastic; mini expander has been used; original Styrofoam packing in place. Year 1983

Model: Aquarius   
Adapter: Non-removable external power supply hard-wired into case providing 8.8 / 16 / -19 VDC
Year: 1983
Keyboard: 48-key rubber chiclet keyboard
Cpu: Zilog Z80 Speed: 3,5 mhz CO-processor: x Ram: 4k (expandable to 36k) Sound: One voice, expandable to four voices
Display: 80x72 semigraphics in 16 colors (TEA1002 chip, 40x24 text characters - with a 25th "zero" row at top - with a size of 8x8 pixels, equivalent to 320 x 192 pixels) 
Size - Weight: 34,5 (W) x 15 (D) x 5,5 (H) cm.
I/O ports: Television, cartridge/expansion, tape recorder, printer
Media: x OS: Aquarius Basic
Peripherals: Mini expander, Data recorder, Thermal Printer, color printer, Modem, 4K RAM, Quick Disk, 32k RAM, Micro expander
Price: 49.90 $ (1984)

•  
•  
•  

• Wikipedia Mattel Aquarius

• Architectural Data Corp

Model: Architectural Data Corp Data Dimensioner
Battery: 3 x ni-cd AA
AC adapter: ?
Year: 1985
Chip: TI ADC1984C / C11202NL / uPD7225G
Info:  Architectural Data Corp introduced in 1984 with the Data Dimensioner ® an innovative product to calculate with mixed dimensions such as feet, inches, fractions and convert them to their metric or decimal equivalents.

Main components on the PCB are a Texas Instruments single-chip microcontroller with the markings ADC1984C and C11202NLsupported  by a standard LCD driver NEC uPD7225G. Architectural Data Corp replaced the complete electronics of the TI-58C calculator and swapped the power hungry LED-Display with a then state-of-the-art LC-Display with two lines and alphanumerical font.

• History
• Aristo

• Mechanical Calculator

Technical Features
Manufacturer: Aristo
Model N ° 0868 ( Variation 3 ) Year 1973 
Lenght (scales) 12.5 cm + 1. 2 cm ext  
Material Wood / Celluloid  Cursor Metal / Glass
Info: Aristo 868 Studio Pocket Slide Rules
A high end log log format pocket rule, shown with the factory box, leather case, and original manual. Has a slightly magnifying 6 line cursor, CF/C and B/C accent color stripes (faint). Self-documenting, two-color scales, including folded, log log, P (pythagorean) and decimal trig scales.

• Kosmos
• Biorhythm

Model: Astro
Battery: 2 x AA alkaline
Adapter: 
Year: 1979
Chip:  TMS1470NL/MP1133          
Info:Astro by Kosmos International, Inc. is the World's first hand-held astrological computer. Astro provides information based not only on the Sun like daily newspaper horoscopes but on the positions of three additional planets which have a major influence on the life: Mercury, Venus and Mars:

The key features of the Astro include:

The Astro was the most advanced product in Kosmos' product line of Kosmos 1, Kosmos 2, Mini-BIO, BIO-Clock and this Astro. Even Radio Shack (a Tandy corporation company), a large US based store chain selling electronic products and parts, distributed the Astro in a slightly different design.

• Console
• Atari
• Allen Acorn

The Atari 2600 hardware was based on the MOS Technology 6507 chip, offering a maximum resolution of 160 x 192 pixels (NTSC), 128 colors, 128 bytes of RAM with 4 kB on cartridges (64 kB via bank switching). The design experienced many makeovers and revisions during its 14-year production history, from the original "heavy sixer" to the Atari 2600 Jr. at the end. The system also has many controllers and third-party peripherals.

Great success of the event, which took place in Rome in 2019, with the name of VCFI (Vintage Computer Festival Italia). On this occasion we had the opportunity to host many characters from this fantastic world, including the famous Allen Acorn, of which we had the opportunity to meet him and get us to sign a console! 

WIKIPEDIA Atari 2600

• Console
• Atari
• Allen Acorn

Atari 2600 JR. The 1986 model has a smaller, cost-reduced form factor with an Atari 7800-like appearance. It was advertised as a budget gaming system (under $49.99) with the ability to run a large collection of games. Released after the video game crash of 1983, and after the North American launch of the Nintendo Entertainment System, the 2600 was supported with new games and television commercials promoting "The fun is back!". Atari released several minor stylistic variations: the "large rainbow" (shown), "short rainbow", and an all-black version sold only in Ireland. Later European versions include a joypad.

WIKIPEDIA Atari 2600 Jr

• Console
• Atari
• Allen Acorn

The Atari XE Video Game System (Atari XEGS) is an industrial redesign of the Atari 65XE home computer and the final model in the Atari 8-bit computer series. It was released by Atari Corporation in 1987 and marketed as a home video game console alongside the Nintendo Entertainment System, Sega's Master System, and Atari's own Atari 7800. The XEGS is compatible with existing Atari 8-bit computer hardware and software. Without keyboard, the system operates as a stand-alone game console. With the keyboard, it boots identically to the Atari XE computers. Atari packaged the XEGS as a basic set consisting of only the console and joystick, and as a deluxe set consisting of the console, keyboard, CX40 joystick, and XG-1 light gun.

Wikipedia ATARI XEGS 

• Console
• TMS1000
• Mattel

Model:  Auto Racer
Battery: 1 x 9 volt                     
AC adapter:
Year: 1976                                   
Chip: TMS
Info:AutoRacer Mattel Auto Race was released in 1976, and was the first Mattel Electronics handheld game made available to the public (and is also the first ever all-electronic handheld, using no moving parts, just electronic components).

• Jeppesen line

Model: Avstar Piper
Battery: 2 x LR43
Adapter: 
Year: 1981
Chip:  TPO328
Info:This Piper "Flight Computer" gives you an example of using existing products like the TI-35 for other purposes. We know similar approaches from the insurance business (view the TI-58 manufactured for Lloyd) but this one uses a specialized integrated circuit to perform different computations and conversions:

• LCD-1991-1999

Model: BA real estate
Battery: 2 x LR44
Adapter: 
Year: 1993
Chip:  T6m51 Toshiba
Info: modern LCD  1991 - 1999

• LCD-1985-1990

Model: BA-20
Battery: LR41
Adapter: 
Year: 1997
Chip: Inventa LI3163
Info: Malysia

• LCD-1982-1987

Model: BA-35 student business analyst 
Battery: 2 x LR44
Adapter: 
Year: 1981
Chip:  CD4571
Info:  modern LCD  1982 - 1987

• Later HANDHELD printing

Model: BA-45 mcro business manager
Battery: 4 x AAA                
Adapter: 
Year: 1984
Chip: nec UPD7503
Info:  later HANDHELD printing   made in Japan scientific  

• Slanted LCD

Model: BA-54
Battery: 2 x LR44
Adapter: 
Year: 1997
Chip:  CD4553 CD4554 
Info:  slanted LCD  generation

• Slanted LCD

Model: BA-55
Battery: 2 x LR44
Adapter: 
Year: 1983
Chip:  CD4553 CD4554 
Info:  slanted LCD  generation

• LCD-1982-1987
• donated

Model: BA-II
Battery: 2 x LR44
Adapter: 
Year: 1985
Chip:  TPO322
Info:  Business Analyst II

Donated by Onofri Rodolfo (Rudy)

• LCD-1991-1999

Model: BA II plus
Battery: CR2032
Adapter: 
Year: 1996
Chip:  T6a53 Toshiba
Info: modern LCD  1991 - 1999

• LCD-1982-1987

Model: BA-III
Battery: 2 x LR44
Adapter: 
Year: 1985
Chip:  TPO322
Info:

• Console
• TMS1000
• Parker Brothers

Model:  Bank Shot
Battery: 6 x AA                       
AC adapter:
Year: 1980                                   
Chip: TMS1400 / MP7313
Info: Bank Shot Electronic Handheld Pool Game By Parker Brothers, Model No. 3600, Takes 6 AA Batteries, Copyright 1980

• TMS0972NL
• concept 2000

Model: Barbie 
Battery: 9 volt 
AC adapter:
Year: 1985
Chip: TMS0972
Info:A lot of LED-calculators used the TMS0972 calculator chip developed for the TI-1200. The cutest ever was this Barbie calculator marketed by Concept 2000.

• Battery

• Calculator
• Battery

with permission of the author     www.datamath.org

• Console

Model:  Battle Ship       
Battery: 4 x  1,5 AA                       
AC adapter:
Year: 1979                                   
Chip: TMS1000 / MP3208 , SN76477
Info: Battle Ship. MB Electronics in the 1979 develops and markets the futuristic version of the classic board game Battaglia Navale, with the use of Texas Instruments chips (TMS1000=MP3208 and SN76477), the miracle of electronics once again keeps its promises, colored buttons, electronic sounds and lights, are the strength of Sink the Fleet - this is the title of the game chosen by MB -. On the packaging the term computer is mentioned several times, powerful microcomputer, which was a jaw-dropping thing for the children of that time.

Instructions:

The With the game off, set the LOAD / GO selector to LOAD and then turn the machine on with the ON / OFF selector.  For each of the two players, position the yellow and blue cursors respectively on CM (Clear Memory) and on CLE (CLear Entry) and press them;  by doing so you erase the memory. Now you can start programming the positions of the fleets, entering all the positions occupied by all the ships;  for example if you have the aircraft carrier positioned horizontally from A1 to A5, you must enter the five positions A1, A2, A3, A4, A5: position the blue cursor on the letter A and press it, then position the yellow cursor on number 1 and press it , finally press the red FIRE button;  then move the yellow cursor to number 2 and press FIRE, then to number 3 and press FIRE, number 4 + FIRE, number 5 + FIRE;  so you have memorized the position of the aircraft carrier.

• Computer
• Acorn
• 6502

The BBC Microcomputer System, or BBC Micro, is a series of microcomputers designed and built by Acorn Computers Limited in the 1980s for the Computer Literacy Project of the BBC. The machine was the focus of a number of educational BBC TV programmes on computer literacy, starting with The Computer Programme in 1982, followed by Making the Most of the Micro, Computers in Control in 1983, and finally Micro Live in 1985.

Model: BBC micro   
Adapter: Internal PSU, 220 VAC
Year: 1981-1994
Keyboard: Keyboard, twin analogue joysticks with fire buttons, lightpen
Cpu: Synertek SY6502A clocked at 2 MHz when accessing ROM and 1 MHz when accessing RAM Speed:  2 mhz CO-processor: x Ram: 16–32 KiB (Model A/B)64–128 KiB (Model B+) 128 KiB (Master) Plus 32–128 KB ROM, expandable to 272 KiB Sound: Texas Instruments SN76489, 4 channels, monoTMS5220 speech synthesiser with phrase ROM (optional) Display: PAL/NTSC, UHF/composite/TTL RGB
Size - Weight: x
I/O ports: Printer parallel, RS-423 serial, user parallel, Econet (optional), 1 MHz bus, Tube second processor interface
Media: cassette tape, floppy disk (optional) – 5+1⁄4-inch or (later) 3+1⁄2-inch, hard disk also known as 'Winchester' (rare), Laserdisc (BBC Domesday Project)OS: Acorn MOS V.1.0
Peripherals: x
Price: 235 £ (1981)

 Wikepedia BBC micro

Model: Benrus gold (round) Code: 
Battery:  2 x 386
WCase: gold 14K tone metal   WBand: matching bracelet  Face: red
Manual: no  Box: no  Light: led
Year: 1979 Price: xxxx
Function:  The three-function shows constant display of hours, minutes, seconds.
Info: the internal module used for operation is made by Texas Instruments 

• Console
• TMS1000
• Game w/ chip TI
• Milton Bradley

Model:  Big Trak
Battery: 4 x  1,5 C + 2 x 9 volt                       
AC adapter:
Year: 1979                                   
Chip: TMS1000 / MP3301
Info: BIG TRAK / bigtrak is a programmable toy electric vehicle created by Milton Bradley in 1979, resembling a futuristic Sci-Fi tank / utility vehicle. The original Big Trak was a six-wheeled (two-wheel drive) tank with a front-mounted blue "photon beam" headlamp, and a keypad on top. The toy could remember up to 16 commands, which it then executed in sequence. There also was an optional cargo trailer accessory, with the UK version being white to match its colour scheme; once hooked to the Bigtrak, this trailer could be programmed to dump its payload.

 Wikipedia Big Trak

• TMS0972NL

Model: BINATONE MEMORY
Battery:  9 volt
Adapter: 
Year:  1976
Chip:  TMS0972
Info: This is a nearly perfect copy of the TI-1250. Made in Homg Kong

• History

• TMS0972NL

Model: BOHSEI 3000
Battery:  9 volt
Adapter: 
Year: 
Chip:  TMS0972
Info: This is a nearly perfect copy of the TI-1250. Made in Homg Kong

• Bonark

Model: Bonark 121
Battery: 2 x AA 
AC adapter:
Year: 1977
Chip: TMC1044NL
Info:

• History
• Bowmar

• Battery Cover

Description: New battery pack with black 3D printed cover, but you can ask for a color other than black!

There are two types of batteries, the 600 or 800 mA NI-CD and the 1800 mA NI-MH.

It is important to use a 2 cent coin or similar, in order to reduce the risk of breaking the hook tab!

Calculators that use these Battery Packs are:

BP1 ( SR-50, SR-51)
BP1A ( SR-50A, SR51A, SR52, SR56, TI-58, TI-58C, TI-59 )

• Battery Cover

Description: Our cover can be used to replace BP-6, BP-7, BP-8, BP-9 battery packs, but using a 9 volt battery. It was designed and built to give new life to your beloved calculators! The new cover is built with the non-toxic material called PLA using 3D printing, the color is black, but you can have other colors such as red and transparent. It can be used with the following calculators:

(SR-51-II, TI-57(1977), TI-51-III, TI-55, TI-57 (1978), TI-42 MBA, MBA)

( TI-15, TI-30, TI-31, TI-33, TI-41, TI-45, BA, BA1, Money Manager,TI- Programmer, TI-45)

• Calculator
• Battery Cover

Description: This circuit with its 3d printed case, can be used to replace the original BP7 - BP8 - BP9.

Calculators that use these Battery Packs are

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 )
The calculators listed were produced in the 70s and 80s, almost all of their accumulators have become defective. Texas Instruments has called their BP (Battery Packs) leak-proof. In fact all the liquid that comes out of the cells does not come out of the BP, but remaining inside destroys all the contents ! 

The two batteries used in the older BPs are AA size and have a nominal capacity of around 500mAh. The new BP uses a 3,7 volt 1000 mah LI-PO battery, and a PCB that performs a specific check / recharge for this type of battery, there is also a STEP-UP circuit necessary to supply a voltage of 9 volts for the operation of the Calculators.

What will come to you if you decide to take it

1- PCB and Cover 3D, with all components

2- Li-PO 800/1000 mah battery 

3- USB cable for charging 

4 - adapter cable for BP7

5- instructions necessary for the replacement.

To recharge the new BP you can use the USB cable supplied, unfortunately for the size I could not insert a micro-USB connector, but make a cable with a specific connector.
One last thing, the circuit is equipped with a trimmer that allows you to vary the output voltage for other applications between 4.5 volts and 25 volts with a maximum current of 500 mah, but ATTENTION any variation could destroy the load downstream of the new BP.

Troubleshooting and Info

When the LEDs are ON and flashing at the same time -> The battery is probably disconnected

When the LEDs are OFF at the same time -> The input voltage is too low or the PCB is faulty

When the red LED is ON -> The battery is charging

When the green LED is ON -> The battery is charged

• First lcd and Yellow lcd

Model: Business Card
Battery: 2 x LR54
Adapter: 
Year: 1979
Chip:  TP-0325        
Info: 

• History
• Cal-Tech

• Chips
• Calculator