Name: D6600 Data Recorder more
Manufacturer: Pye
Year: 1983
Type: Cassette
Price: £49.95

Name: D40/D80 more
Manufacturer: Didaktik Skalica
Year: 1990
Type: Disk
Note: D40/D80 was floppy system produced by Slovak company Didaktik Skalica.
This product was spread mainly in the Czech Republic (and Slovakia too).
D40/80 consists of power supply, drive (D40 = 5.25 DD; D80 = 3.5 DD) and port for the second drive B (max 2 drives can be connected). It has 16Kb EPROM with an operating system called M-DOS (the official versions are 1.0, 1.0 +, 2.0), 2Kb SRAM for system variables, the controller WD2797 (for newer models controller Intel 8272) and separated data and address bus.
There is a parallel interface with a chip 8255 (eg, for printer). Standard floppy with D40/D80 is 40/80x09 (feet x sectors) and 512 bytes per sector.
When you connect HD drive, capacity does not increase (still, it will work as DD). Max number of files on the disk is 128. System preserves the original computer ROM.

Name: Data 2000 Watch more
Manufacturer: Seiko
Year: 1984
Type: Add-on
Price: £129.50

Name: Data Design Pad more
Manufacturer: TRT Design
Year: 1984
Type: Miscellaneous
Price: £4.95

Name: Data Director more
Manufacturer: Hirst Electronics
Year: 1985
Type: Cassette
Price: £29.95
Blurb: Transforms the task of loading and saving from a chore to a delight. Small external box between the Speccy and the cassette recorder.

Name: Datadrive more
Manufacturer: HiLow Computers
Year: 1986
Type: Cassette
Price: about $120
Note: A High Speed Digital Cassette Drive, which also has NMI capabilities, allowing you to dump the contents of the machine to tape.
The manufacturer mentions: "It used discarded Adam Colecos cassette units in a completely original circuit board, ROM and casing entirely designed, programmed and made in Uruguay. It was completely computer controlled and featured an NMI button to save games automatically, among other things. The designers later programmed Buggy Ranger, Freddy Hardest en Manhattan Sur (aka Guardian Angel), Narco Police (Amstrad CPC, MSX, PC, ST, Amiga and Speccy versions) and Megaphoenix (PC version)."

Name: Datafax Disk System more
Manufacturer: Statacom Distribution
Year: 1984
Type: Disk
Price: £245.00
Blurb: Interface supports 3 and 5.25 drives. up to 200K storage. External DOS uses 8K of memory. Built-in reset button.
Note: This interface was used in the Statacom Disk System.

Name: Datafax Spectrum Disk Interface more
Manufacturer: Statacom Distribution
Year: 1984
Type: Disk
Price: £75.00

Name: Datamate more
Manufacturer: Procomm Systems
Year: 1983
Type: Add-on
Blurb: Cure Load/Save problems with this easy to use unit. Also includes a 'beep' ampliphier.

Name: Datapen more
Manufacturer: Datapen Microtechnology Ltd
Year: 1985
Type: Graphics
Price: £29.00
Blurb: Lightpen system. Draw direct to screen.

Name: Data Recorder more
Manufacturer: Cheetah Marketing Ltd
Year: 1985
Type: Cassette
Price: £24.95

Name: Data Recorder more
Manufacturer: Meow Micros
Year: 1984
Type: Cassette
Price: £24.95
Blurb: Fully compatable (or your money back) cassette recorder for your Spectrum.

Name: DataSpectrum more
Manufacturer: Miracle Technology UK Ltd
Year: 1985
Type: Telecom/Network
Price: £47.09
Blurb: Interface to connect a modem to your Spectrum.
Note: Came with a software package, CTE/80.

Name: Datel 3 Channel Sound Synthesiser more
Manufacturer: Datel Electronics Ltd
Year: 1989
Type: Sound/Speech
Price: £19.99
Blurb: 3 channel sound interface.

Name: Datel Cassette Recorder more
Manufacturer: Datel Electronics Ltd
Year: 1983
Type: Cassette
Price: £24.99

Name: Datel Electronic Demagnetiser more
Manufacturer: Datel Electronics Ltd
Year: 1988
Type: Miscellaneous
Price: £9.99
Blurb: Loading problems ? Your tape heads may need demagnetising. Its a cleaner and demagnetiser built into a cassette.

Name: Datel Dual Port Joystick Interface more
Manufacturer: Datel Electronics Ltd
Year: 1988
Type: Joystick
Price: £8.99

Name: Datel Games Ace more
Manufacturer: Datel Electronics Ltd
Year: 1988
Type: Joystick
Price: £10.99
Blurb: Allows any 9 pin joystick to be used with the Spectrum. Puts sound through TV speaker.

Name: Datel Genius Mouse more
Manufacturer: Datel Electronics Ltd
Year: 1989
Type: Mouse
Price: £49.99
Blurb: High resolution, two button mouse. Complete with interface and OCP Art Studio software.

Name: Datel Inter Printer more
Manufacturer: Datel Electronics Ltd
Year: 1983
Type: Printing
Price: £34.99
Blurb: Centronics printer interface.
Note: Came with the Centronics Printer Software tape.

Name: Datel Joystick & Interface more
Manufacturer: Datel Electronics Ltd
Year: 1983
Type: Joystick
Price: £19.99

Name: Datel Lightwriter more
Manufacturer: Datel Electronics Ltd
Year: 1984
Type: Graphics
Price: £16.99
Blurb: Create superb graphics with this lightpen.
Note: Came with the Datel Lightwriter tape.

Name: Datel Ramprint more
Manufacturer: Datel Electronics Ltd
Year: 1989
Type: Printing
Price: £34.99
Blurb: The ultimate printer interface with built-in word processor (RamWrite). Works with any standard centronics printers.

Name: Datel Robotarm more
Manufacturer: Datel Electronics Ltd
Year: 1988
Type: Robot
Price: £49.99
Blurb: Full function 5 axis movement. Includes standard grip jaw, magnetic finger, Shovel attachment and stabilising legs.
Read the feature

Name: Datel Snapshot more
Manufacturer: Datel Electronics Ltd
Year: 1986
Type: Add-on
Price: £29.99
Blurb: Transfer all your programs to microdrive or disk at the touch of a button. Datel's version of the Multiface.
Note: Datel later launched the follow-up, Datel Snapshot II.

Name: Datel Snapshot II more
Manufacturer: Datel Electronics Ltd
Year: 1986
Type: Add-on
Price: £24.95
Blurb: Transfer all your programs to microdrive or disk at the touch of a button. Datel's version of the Multiface.
Note: Came with the Datel Snapshot 2 tape.

Name: Datel Switchable Joystick Interface more
Manufacturer: Datel Electronics Ltd
Year: 1985
Type: Joystick
Price: £19.99
Blurb: Switches between Kempston, cursor and Interface 2 types.

Name: Datel Turbo Ace more
Manufacturer: Datel Electronics Ltd
Year: 1984
Type: Joystick
Price: £22.99
Blurb: Switchable joystick interface with sound booster.

Name: Datel Vox Box more
Manufacturer: Datel Electronics Ltd
Year: 1984
Type: Sound/Speech
Price: £29.99
Blurb: Speech synthesizer with built in joystick interface. Uses allophone system. Sound output via TV speaker.

Name: DCL3 Tape Transfer Dual Cassette Interface more
Manufacturer: Trigsoft
Year: 1985
Type: Cassette
Price: £12.00

Name: DCP Interpack 1 more
Manufacturer: DCP Microdevelopments Ltd
Year: 1984
Type: Add-on
Price: £43.43
Blurb: Part of the DCP Control System. The system consists of several packs and additions that can be linked together to form a very powerful external control unit for the likes of servo's, robots etc.. This module contains analogue and digital inputs. An 8bit TTL input and an 8bit TTL output port.

Name: DCP Interpack 2 more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £34.74
Blurb: Part of the DCP Control System. This module contains an eight-switch contact for digital inputs, six SPDT relays and 15way expansion bus.

Name: DCP Interpack 3 more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £43.43
Blurb: The stepper motor control. Can drive up to 3 12v two-phase motors. Also has eight buffered switch contacts.

Name: DCP Interpack ADC Pack more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £21.70
Blurb: Fast analogue to digital converter.

Name: DCP Interpack DAC Pack more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £21.70
Blurb: Fast digital to analogue converter.

Name: DCP Interpack Intercard more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £13.00
Blurb: Used to connect Interpacks together.

Name: DCP Interpack Invertabus more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £4.30
Blurb: Connects two ADC or DAC packs together.

Name: DCP Interpack Powerbus more
Manufacturer: DCP Microdevelopments Ltd
Year: 1986
Type: Add-on
Price: £17.35
Blurb: Boosts power when several Interpacks are used together.

Name: DCP Interspec more
Manufacturer: DCP Microdevelopments Ltd
Year: 1983
Type: Add-on
Price: £39.95
Blurb: Multi port expansion. Includes; 8bit TTL input, 8bit TTL output, 8 channel digital/analogue converter.

Name: DCP S-Pack more
Manufacturer: DCP Microdevelopments Ltd
Year: 1983
Type: Sound/Speech
Price: £49.95
Blurb: Speech synthesiser. Formaly known as the Digitalker. Has a vocabulary of 71 words which can be upgraded by purchasing extra voice packs in the form of ROMs.
Note: Also known as the DCP Speech Unit.

Name: DCP Speech Pack more
Manufacturer: DCP Microdevelopments Ltd
Year: 1982
Type: Sound/Speech
Price: £49.95

Name: Defender Light Gun more
Manufacturer: Cheetah Marketing Ltd
Year: 1989
Type: Add-on
Price: £24.95
Blurb: Now you can fire a plastic gun at the telly ! Includes several games like Bronx Street Cop and Billy the Kid.
Came with the Defender Light Gun tape.
Read the feature

Name: Delta-RAM Kit more
Manufacturer: Delta Research Ltd
Year: 1983
Type: RAM/ROM
Price: £33.00 (issue 1) / £26.00 (issue 2)
Blurb: Internal RAM upgrade for 16K machines. Easy to install.

Name: Desk Console more
Manufacturer: Traffic Technology
Year: 1983
Type: Miscellaneous
Price: £39.50

Name: Desktop Console more
Manufacturer: Computerlock
Year: 1983
Type: Miscellaneous
Price: £22.00
Blurb: TV/Monitor stand that incooparates your Spectrum, PSU and tape.

Name: Digit more
Manufacturer: Frel Ltd
Year: 1986
Type: Keyboard
Price: £9.50
Blurb: Keyboard enhancer for Spectrum Plus. Replaces the rubber membrane with a tactile feeling alternative.

Name: Digital Sound Sampler more
Manufacturer: Datel Electronics Ltd
Year: 1985
Type: Sound/Speech
Price: £49.99
Blurb: Digital sampling technology on your Spectrum. 8bit sampling and playback of any sound.

Name: DISCiPLE Interface more
Manufacturer: Rockford Products
Year: 1987
Type: Disk
Price: £86.59
Blurb: Disk interface allows up to 16mb of storage on 2 drives. Loads full 48K program in 3.5 seconds. Compatible with any standard drive, double or single density. Snapshot button to save your programs to disk. Printer interface. Dual joystick ports. (Sinclair/Kempston). Networking feature to allow the DISCiPLE to act as file server for upto 64 other Spectrums.
Note: Runs the GDOS operating system.
Comes with a DISCiPLE System Tape.
The ROM image(s) is/are available at Phil Kendall's The Spectrum ROMs Collection.

Name: DivIDE more
Manufacturer: Pavel Cimbal
Year: 2002
Type: Disk

Name: DK'Tronics 3 Channel Sound Synthesiser more
Manufacturer: DK'Tronics Ltd
Year: 1984
Type: Sound/Speech
Price: £29.95
Blurb: Incorporates a Beep amplifier and 3 channel sound synthesiser.
"The 3 channel sound synthesiser adds a totally new dimension to sound on your Spectrum. It allows you to program your own music with harmonies, explosions, zaps, chimes, whistles and an infinite range of other sounds over 8 octaves. Based on the popular AY-3-8912 sound chip it gives you complete control (from Basic or M/C) over 3 channels of tone/or white noise, plus envelope and volume control. It comes with its own pod mounted 4" speaker."
Note: Came with a software tape: Sound Designer.

Name: DK'Tronics Beep Audio Amplifier more
Manufacturer: DK'Tronics Ltd
Year: 1984
Type: Sound/Speech
Price: £14.95
Blurb: Amplifier interface with pod mounted 4" speaker and volume control. Looks much like the 3 Channel Sound, but doesn't have the sound chip.

Name: DK'Tronics Dual Port Joystick Interface more
Manufacturer: DK'Tronics Ltd
Year: 1985
Type: Joystick
Price: £13.00
Blurb: Dual port joystick interface.
"The first port simulates 6,7,8,9 & 0 keys. The second port simulates IN(31) command" - Kempston.

Name: DK'Tronics Games Controller more
Manufacturer: DK'Tronics Ltd
Year: 1985
Type: Joystick
Price: £12.95
Blurb: Standard joystick interface (Kempston) with the added feature of a 'slowdown' control for games that are just too hard for you.

Name: DK'Tronics Joystick Interface more
Manufacturer: DK'Tronics Ltd
Year: 1983
Type: Joystick
Price: £22.95

Name: DK'Tronics Joystick & Interface more
Manufacturer: DK'Tronics Ltd
Year: 1983
Type: Joystick
Price: £22.95
Blurb: Winning is within your grasp ! Cursor & Kempston compatible.

Name: DK'Tronics Keyboard more
Manufacturer: DK'Tronics Ltd
Year: 1983
Type: Keyboard
Price: £45.00
Blurb: "The DK Microdrive compatible keyboard is the best selling keyboard in the world and is used by 10% of all Spectrum users. It is Microdrive compatible and offers more key functions than any other keyboard in its price range. The stepped keys and space bar make it even easier to use. It is constructed from high density black ABS and has 52 keys and a full width space bar. A separate numeric keypad of 12 red keys, including a single entry 'delete' plus single entry decimal point, facilitate fast data entry."
Read the feature

Name: DK'Tronics Light Pen more
Manufacturer: DK'Tronics Ltd
Year: 1983
Type: Graphics
Price: £19.95
Blurb: Draw in high resolution on your TV screen.
"This highly succesful Light Pen fits neatly onto the rear of the computer. The operating software now runs faster and supports 16 pre-defined instructions. You can change all the colours (border, paper, ink), draw circles, arcs, boxes, lines and insert text onto the screen. There are also features to draw freehand and animate on the 48K Spectrum, you can retain and animate 5 screens. You can also use the machine code on its own in your own programs."
Note: Came with the DK'Tronics Light Pen tape.

Name: DK'Tronics Memory Expansion Kits more
Manufacturer: DK'Tronics Ltd
Year: 1982
Type: RAM/ROM
Price: £19.95

Name: DK'Tronics Parallel Centronics Interface more
Manufacturer: DK'Tronics Ltd
Year: 1985
Type: Printing
Price: £39.95
Blurb: Allows any printer with a centronics interface to be connected to you Spectrum. Uses standard print commands.
Note: Came with the Centronics Printer Software tape.

Name: DK'Tronics Programmable Joystick Interface more
Manufacturer: DK'Tronics Ltd
Year: 1984
Type: Joystick
Price: £22.95
Blurb: "Now you can run any software from any supplier with the DK'tronics fully programmable joystick interface. It comes complete with machine code software and can be programmed in seconds to give full 8 directional joystick movements."
Note: Came with the Programmable Joystick Software tape.

Name: DK'Tronics Spectra-Sound more
Manufacturer: DK'Tronics Ltd
Year: 1983
Type: Sound/Speech
Price: £9.95
Blurb: Fully amplied sound via your TV. Fits inside your Spectrum.

Name: DK'Tronics Speech Synthesiser more
Manufacturer: DK'Tronics Ltd
Year: 1984
Type: Sound/Speech
Price: £24.95
Blurb: Speech synthesiser using the SLO/256 chip.
Note: Came with the Speech Software tape.

Name: Dorsch Centronics Interface more
Manufacturer: Dorsch - Elektronic
Type: Printing
Blurb: Centronics Interface

Name: Dot Crawl Suppressor more
Manufacturer: A. Baldwin
Year: 1986
Type: Miscellaneous
Price: £8.50

Name: Double Density Disk Interface more
Manufacturer: Cumana Ltd
Year: 1985
Type: Disk

Name: Doubler more
Manufacturer: Evesham Micro Centre
Year: 1985
Type: Add-on
Price: £12.95

Name: Doubler MkII more
Manufacturer: Evesham Micro Centre
Year: 1985
Type: Add-on
Price: £14.95
Blurb: Back up any program on the Spectrum. Requires 2 tape decks.
Note: Came with the Doubler MkII tape.

Name: Dove Disk Drive Interface more
Manufacturer: Dove Microtronix Ltd
Year: 1984
Type: Disk
Price: £69.95

Name: Dove Disk System more
Manufacturer: Dove Microtronix Ltd
Year: 1984
Type: Disk
Price: £249.00

Name: Dove Joystick Interface more
Manufacturer: Dove Microtronix Ltd
Year: 1984
Type: Joystick
Price: £9.95
Blurb: Standard joystick interface. Kempston compatible.

Name: Downsway Programable Joystick Interface more
Manufacturer: Downsway Electronics
Year: 1983
Type: Joystick
Price: £22.95
Blurb: Simply move the stick and press the appropriate key to program.

Name: Dust Cover for Spectrum more
Manufacturer: Algray Software
Year: 1984
Type: Miscellaneous
Price: £1.95

Name: DWP1120 Printer more
Manufacturer: Quen Data Business Machines
Year: 1985
Type: Printing
Price: £295.00