Some of our latest additions are shown below - clicking on the link will take you to the items main page and will also show any further photographs.
Model number KLC/912/S/3251.
The lan-Alog computer was designed to teach analogue computing techniques to students in mathematics, engineering, and applied sciences. The computer contains four encapsulated operational amplifiers, employing silicon epitaxial transistors and a voltmeter. The various components can be connected in a variety of ways using patch cords.
The amplifier fitted in the Lan-Alog LA-4 has an open-loop gain of 50,000, ensuring a basiccomputing accuracy of better than 1% per amplifier. The overall accuracy of computation also depends on the quality of the resistors and capacitors used - the Lan-Alog manual claims beter than +/-3% in all conditions.
All components are mounted on a steel panel, measuring 19 x 10.5 inches and the panel is drilled such that it may be fixed vertically on a standard 19-inch rack.
The CE-122 interface allows you to connect your PC-1211 pocket computer, allowing saving and recall of programs to cassette tape and output to paper.
In original box with manual.
The Advantage was a 4 MHz, Z80a based computer, with 64K of user RAM, and 16K of graphics RAM. It used two single sided, double density 18K floppy disk (hard sectored) drives, and an optional 5MB Winchester disk.
The Advantage was known for its graphics capabilities, and was sold with four demonstration programs, one of which plotted and calculated a pattern of lines reminiscent of the arcade game Qix. The Advantage also had an optional 8088 co-processor board available that ran MS DOS 1.0.
While initially successful, North Star's sales suffered from the company's adherence to hard sector floppy drives, which made software difficult to port onto North Star's machines.
It was no longer a significant factor in the industry by the time the less expensive CP/M computers with built in displays (and soft sector drives), such as the Osbourne and the Kaypro were released.
Sales slowed during the growth of the PC market, and the company folded in 1984.
This cartridge contains software to allow transfer of files between a Z88 computer and an Apple Macintosh.
Color power graphic calculator.
- 64KB memory (61000-byte user memory)
- Graphic functions
- Advanced statistics
- Financial functions
- 21-column x 8-line display, 127x63 dot
- BASIC-like programming function
- Data communications-compatible with CFX-9850G series, fx-9750G series, Casio Data Analyzer and computers via FA-123.
The TI-58 (May 1977)was a cut down version of the TI-59, lacking the magnetic card reader and having half the memory, but otherwise identical.
Date of introduction: 1979
Display technology: LED-stick
Display size: 10 (8 + 2)
Size: 6.4" x 3.2" x 1.5" 162 x 81 x 37 mm3
Weight: 8.5 ounces, 240 grams
Integrated circuits: TMC0501E, TMC0591, CD2400, CD2401 TMC0573, TC5047
Serial No: 2153206 4078ACH
A battery backup memory, appoximately 256Kbit. It attaches in the back of the controller. One controller pak can save up to 16 game notes.
A light gun for the Sinclair Spectrum.
The PlayStation Multitap allows the same number of memory cards as controllers. In games such as Dead or Alive 2: Hardcore, this allows all players to insert memory cards and track their personal statistics. The PlayStation 2 allows for the use of 8 controllers and 8 memory cards simultaneously by plugging in a Multitap in both controller ports.
Electronic calculator. Four functions plus square root and percentage. Based on the HDA43320 chip.
Texas Instruments created the TMS5220 voice synthesis processor as a means to add realistic speech output to home computers such as the BBC Micro, pinball machines, and children's toys. It acts as a model of the human vocal tract which allows the speech data to be parameterised and hence compressed considerably compared with just storing raw audio samples.
The speech processor can accept data either from a host microprocessor, or from a mask programmed serial ROM - the TMS6100 voice synthesis memory. However, the high cost and minimum order quantities associated with the setup of a mask means that comparatively few TMS6100s were created, and being mask programmed are fixed in operation.
The TMS6100 emulator solves both of these shortfalls by emulating the operation of the original device through the use of a modern 8 bit microcontroller with on board flash memory. When coupled with an original TMS5220 your system can speak once again.
The upgrade kit consists of an original TMS5220 speech processor and TMS6100 emulator, which is a small carrier circuit board the same size as a normal 28 pin chip, along with instructions for fitting into a BBC Model B or Model B+. Except for some early Model B (pre issue 4) motherboards, no soldering is required to install the upgrade.
The Commodore LC5K is an arithmetic calculator with 8 digits precision and algebraic logic. It has 7 functions, 24 keys and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 2x1.5V cell.
- Telephone directory
- Schedule (with schedule alarm)
- Home time and world time
- Data communications
Computer program data recorder with monitor function.
Serial number 96906544.
Serial number 189987.
- 6502 assembler on Vickit 5.
- Hi-speed cassette operations machine code monitor from Vickit 4.
A 16K RAM cartridge for the Commodore VIC-20 coomputer. This was required to run some larger games, including Jetpack.
The CPC 464plus model was intended as "more sophisticated and stylish" replacements for the CPC464. The 464plus has 64KB RAM and a cassette tape drive.
The plus range is not equipped with an on-board ROM, and thus the 464plus and the 6128plus do not contain a firmware. Instead, Amstrad provided the firmware for both models via the ROM extension facility, contained on the included Burnin' Rubber and Locomotive BASIC cartridge. This resulted in reduced hardware localization cost (only some select key caps and case labels had to be localized) with the added benefit of a rudimentary copy protection mechanism (without a firmware present, the machine itself could not copy a game cartridge's content).
Our CPC 464 is in excellent condition and has the Serial No: 532-0909050.
This genlock board for the BBC Micro allows video overlay.
This was the colour monitor sold together with the CPC464plus/CPC6128plus computers.
It was also available as an option to the GX4000 video console.
Our CM14 is in it's original box.
Developed by InterAct Game Products. For use with the Nintendo 64 game console.
- Five fire buttons and view control
- Analog joystick
- Slow motion function
- Auto-fire function
- Mmeory card slot
- Eight-way digital directional control
- Both a memory card and jolt pack combined
- Copatible with Nintendo rumble pack
- Memory card compatible with N64 games
- Save and restore game data
- Save up to 123 pages of data
The Memotech MTX512 was a Z80-based home computer released by Memotech in 1983-1984. While not fully compatible with the MSX series of computers, they were technically very similar. The MTX512 had 64KB RAM. The MTX512 supported plug-in ROM boards.
The Memotech MTX500 was a Z80-based home computer released by Memotech in 1983-1984. While not fully compatible with the MSX series of computers, they were technically very similar. The MTX500 had 64KB RAM. The MTX500 supported plug-in ROM boards.
The Stork was a prototype notebook designed by Acorn in 1996. Very few were made, mainly to be used as demonstrator units to third-parties who would license the design. The Stork was never produced commercially.
Our Stork has serial number STK14 and was kindly donated by Chris Whytehead. More information can be found at his website.
This is Burroughs' rebranding (OEM copy from) the Sharp EL-160 electronic calculator. Introduced in 1971, it was marketed in America and Europe.
It is a basic four-function, 8 digit floating decimal calculator with memory (or double-precision, depending on a mode switch).
It uses individual Itron vacuum fluorescent display tubes for the display. Itron tubes use a unique segmented pattern to create digits that look more handwritten than the traditional 7-segment digit rendition.
Using the calculator:
To multiply, the first number is entered, followed by the [÷X]" key, then the second number is typed in, followed by the [+=] key to calculate the product.
The same sequence is used for division, but rather than pressing the [+=] key, the red key (with Burroughs' unusual "dot = dot" nomenclature) is pressed to perform the division.
The keyboard panel has two slide switches to control the operational mode of the machine. The upper-most switch, with positions labeled "MEM" and "16", is used to select the operating mode of the machine.
The 'MEM' and '16' slide-switch:
The Burroughs C3260 has two operating modes.
'MEM'provides a memory accumulator, with a key to add the display to the memory [+], and one to recall the current content of the memory register to the display (diamond shape).
"16" uses the memory register as a double-precision register, allowing results of multiplication and division operations to return answers up to 16 significant digits in length. In this mode, when a result is greater than 8 significant digits, the display shows the upper eight significant digits of the result upon completion of the calculation. The [diamond] key can then be pressed to display the lower eight digits of the result. When the lowest digits are being displayed, a single press of the [C] key will return the upper-most digits of the answer to the display.
In "16" mode, the [+] key has no function. This double-precision mode is good only for use on single calculations...chain calculations in this mode result in the low part of the answer being lost, and answers that are of limited use.
The 'CM' slide-switch (clear memory):
The second slide switch is a momentary contact switch, used when the calculator is in "MEM" mode to clear the memory register. Sliding the switch downward to the "CM" position and releasing it causes the memory register to be set to zero.
Serial No: C-034672-101
Dimensions: 254x159x89 mm
Made in Japan
The Iyonix PC was sold by Castle Technology and Iyonix Ltd from 2002. It used standard PC-compatible hardware but ran RISC OS 5 (developed from source code licensed by Pace for set-top boxes). Development of the Iyonix PC was initially carried out in secret under the codename Tungsten. The Iyonix was the first major redesign of the RISC OS platform since the RISC PC was introduced in 1993.
The Iyonix had PCI and USB expansion ability, and also kept the ability to use the legacy "podule" cards. Unlike Acorn's Phoebe machine, no attempt was made to retain compatability with VIDC or 26-bit mode. The Iyonix is believed to be the first shipping computer to use Intel's XScale processor.
Production of the Iyonix PC ceased in 2006 following the introduction of RoHS regulations. Castle Technologies stopped taking orders for the Iyonix on 25 September 2008.
Our Iyonix PC is complete with original box, keyboard, and manuals. It has serial number IY01100939.
This expansion unit for the Sinclair ZX81 adds another 32K of RAM.
The Olympia People microcomputer system was released in the late eighties by Olympia International and was intended to be used as a general-purpose office microcomputer.
- 8086 16-bit processor.
- 128KB DRAM as standard; upgradable to 512KB.
- Dual double-sided, double-density 5.25" disk drives. Total disc capacity 655KB (80 tracks, 16 sectors/track, 256 bytes/sector).
- Monochrome green-screen monitor with four intensity levels. Text and graphics mode supported.
- Detachable keyboard with programmable function keys and ASCII/national character support.
- RS-232 serial port
- Parallel printer port
- ROM diagnostics and monitor program
The People is designed to run both CP/M-86 and MS-DOS 2.00.
Aftermarket options available included a 20MB Winchester hard disc; a high-resolution colour monitor; and a GPIB interface board.
Our Olympia People has been upgraded to the maximum 512KB memory.
The HP-41 series of calculators were the first to add alphanumeric input to simplify the programming of HP's increasingly sophisticated progrgammable calculators. The CX variant included by default the Time module (stopwatch plus clock with alarms), an Extended Functions / Extended Memory module, a text editor, and some additional functions.
This cassette recorder is specially designed for storing computer programs and data. Fast-forward, cue, rewind, and review are independent functions of the computer. Features one-key recording.
Our DR-5 has serial number 30738321 and is in it's original box.
A 16k Memory Expansion module for the Mattel Aquarius computer.
New and unused, still sealed.
This accessory for the Spectrum amplifies the audio signal produced by a Spectrum and plays it through a speaker. Saving and loading to cassette can be acomplished without switching leads due to the save/load/beep switch. An audible cue facility allows recorded tapes to be quickly searched.
The Superbrain II JR was a variant of the Interac Superbrain II. It shipped with 170KB disc drives.
The Interton Electronic PIC 9000 is a non-programmable calculator from the 1970's. Three slots on the bottom of the machine allow modules to be inserted allowing additional features, such as conversion tables or word translation.
The Casio fx-180p is a programmable calculator offering 38 merged program steps, plus six registers.
Introduced in 1978, the HP 32E was a non-programmable calculator that offered statistical functions and additional registers over the lower-end 30-series models.
The official Sega light gun for the Dreamcast. Not released in the US due to concerns about bad publicity following the Columbine High School shootings.
This 'hardcard' is designed to be placed inside a standard PC and is essentially a standard Miniscribe hard disk bolted onto a controller card.
A digital sound sampling and playback device. The Music Machine was designed by Flare Technology and manufactured by RAM Electronics. The Amstrad CPC version is almost identical to the the ZX Spectrum version, only difference was the address decoding logic.
Dk'tronics Speech Synthesizer based on SPO256-AL2 chip.
The serial link for Apple Macintosh consists of:
- A 3Link cable (for Psion Series 3 and 3a) to connect you Psion to Apple Macintosh computers.
- Psion Link software for Apple Macintosh computers which allows you to control the transfer of files between your Psion and Apple Macintosh on the Apple Macintosh.
- MCLINK software whic hallows you to access and transfer files on you Apple Macintosh from your Psion.
- COMMS application for Psion Series 3 and Series 3a computers; housed in the 3Link cable, it provides terminal emulation (for connecting you Psion to another computer directly or via a modem) for data access and exchange. Protocols supported: XMODEM and YMODEM.
The infrared printer link enables you to print from your Psion machine to a printer without using a cable. The infrared printer link uses one 9V PP3 battery.
Links the Psion Series 3 with any standard parallel printer.
The P1000G is a 100MHz Pentium PCI local bus laptop manufactured by Tadpole Technology.
List prices for the P1000 configured with 8MB DRAM, a 340MB hard drive, Windows for Workgroups 3.11 and DOS 6.22, Phoenix BIOS with Plug & Play, an external floppy drive, internal NiMH battery and leather carrying case start at $6,495.
This 64KB battery-backed RAM card is designed for use with the PTC-500 Palmtop computer.
The Sinclair ZX Printer is a spark printer which was produced by Sinclair Research for its ZX81 home computer. It was launched in 1981, with a recommended retail price of £49.95.
The ZX Printer used special 4-inch (100 mm) wide black paper which was supplied coated with a thin layer of aluminium. To mark the paper, one of the printer's two styluses passed a current through a small area of the aluminium layer, causing the aluminium to evaporate and reveal the black under-surface. The printer's horizontal resolution was the same as the ZX81's video display, i.e. 256 dots (pixels) or 32 characters (using the standard character definition). The print quality was crude, but no other printer was compatible with the ZX81 without the use of additional software and interface hardware.
The ZX Printer was also compatible with the earlier ZX80 computer (when fitted with the 8kB ROM upgrade) and the later ZX Spectrum, and plugged directly into the expansion bus connector via a short cable. The expansion bus was duplicated on the outside of the printer's connector, allowing other peripherals to be connected concurrently. The printer drew its power directly from the expansion bus, and was sold with a larger (1-2A) power supply for the ZX81 to accommodate the additional power drain. The Spectrum's user manual noted that this was not needed for the Spectrum as its default 1.1A power supply was sufficient.
Sold between 1982 and 1989, this was HP's only calculator designed to be used by programmers. It could display numbers in decimal, hexadecimal, octal, or binary. Numbers wider than the LCD display were displayed in a 'windowed' format, with the visible digits able to be shifted left and right.
The calculator was configurable to match the computer the user was currently working with. The word size could be set to anywhere from 1 to 64 bits, with maths being perfomed in either unsigned, ones-complement, or twos-complement format.
Floating point calculations could be performed, wirth two conversion algorithms to convert between the HP-16C floating point format and the (not yet standard) IEEE format.
As well as the 'standard' calculator functions, the HP-16C also provided some specialised features designed for computer users:
- Shift functions: left and right, arithmetic and regular.
- Rotate functions: by multiple positions in either direction, optionally through the carry bit.
- Left justify the bits of a word.
- Masking: Create masks to mask left or right N bits.
- #B: returned number of bits set in a word.
- Bitwise Logic: and, or, not, xor; also bit setting and testing.
This joystick is switchable between IBM and Apple modes. it also has an additional switch for choosing between "Fire Button/Selector". The cable ends in a DA-15 connector.
This joystick plugs into the Archimedes mosue port and repalces it as a pointing device.
LocoLink for Windows allows you to transfer files from any UK model Amstrad PC to an IBM-compatible PC. An adapter cable connects from the PCW expansion port to the PC parallel printer port; the included software handles file transfer and can also convert LocoScript documents to PC formats.
- Any UK Amstrad PCW (8256, 8512, 9512, 9256, 9512+, and PcW 10)
- Any IBM PC suitable for running Windows
- MS DOS 3.3 or later and Windows 3.1 or later
- Parallel printer port for using the LocoLink cable
- One 3.5" or one 5.25" disc drive
Original box with cable, PCW software disc, and user guide.
The Tadpole Voyager IIi is a portable Solaris server. It has two removable drive caddies, each taking laptop drives. The 360MHz UltraSPARC IIi processor is paired with 512MB of RAM.
This modern cartridge card for the BBC Master allows you to load up to eight 16KB ROM images into battery-backed RAM. The ROM images can be switched without removing the card by using the toggle switches. There is also a socket to allow an external ROM to be fitted.
Kindly donated by Chris Whytehead. Further details for available here.
The LTM Portable is a 'luggable' BBC Master, with built-in monochrome CRT monitor and dual disk drives. It runs off mains power.
Kindly donated by Chris Whytehead - further details, including photographs of the internals, are available here.
Released in Japan in 1990, this is one of Sony's earliest portable computers. It features handwriting recognition, although the stylus is connected via a wire.
Kindly donated by Mik Lamming.