Name: Rainbow Joystick & Sound Interface more
Manufacturer: Rainbow Electronics
Year: 1984
Type: Add-on
Price: £24.00
Blurb: Programmable joystick interface with sound. Sound amplifier to boost your output.

Name: Rainbow Sound Booster more
Manufacturer: Rainbow Electronics
Year: 1984
Type: Sound/Speech
Price: £24.00

Name: Ramlok more
Manufacturer: Adapt Electronics
Year: 1983
Type: Miscellaneous
Price: £8.00
Blurb: Device to stop the dreaded Ram-Pack wobble. Replaces the standard user port with a gold plated edge connector, complete with mechanical fastenings to hold interfaces tight.

Name: Ramlok II more
Manufacturer: Adapt Electronics
Year: 1983
Type: Miscellaneous
Price: £6.00
Blurb: Stop the dreaded 'wobble' with interfaces. Includes improved edge connector.

Name: RamPrint Interface more
Manufacturer: Ram Electronics Ltd
Year: 1986
Type: Printing
Price: £34.95
Blurb: Printer interface. Centronics compatible. Built-in word processor (RamWrite). Joystick port.
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Name: RamTurbo Interface more
Manufacturer: Ram Electronics Ltd
Year: 1984
Type: Joystick
Price: £22.95
Blurb: Turbo Charge Your Spectrum!
Note: ROM cartridge slot that took the Sinclair cartridge games such as Jetpac, Cookie and Horace.
The twin joystick ports could support Kempston (the rightmost one), Protek(Cursor) (the leftmost one, after programming) or Sinclair (both).
Hold down the Joystick's fire button on boot to activate Protek(Cursor) mode.
A small reset button on the side was available on units produced from Christmas '85 onward.

Name: R.A.T. more
Manufacturer: Cheetah Marketing Ltd
Year: 1984
Type: Joystick
Price: £29.95
Blurb: Remote Action Transmitter. Infra red game pad that can be used for games. Kempston compatible.
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Name: RD 8100 Modules more
Manufacturer: RD Laboratories
Year: 1982
Type: Add-on

Name: RD Adaptor more
Manufacturer: RD Laboratories
Year: 1983
Type: Add-on
Price: £9.50
Blurb: Adaptor board to allow you to connect the Digital I/O, Analogue and Clock interface.

Name: RD Anologue I/O more
Manufacturer: RD Laboratories
Year: 1983
Type: Add-on
Blurb: Anologue I/O port. Requires RD Adaptor.

Name: RD Clock more
Manufacturer: RD Laboratories
Year: 1983
Type: Add-on
Price: £51.24
Blurb: Real time clock/calendar. Battery backed. Requires RD Adaptor.

Name: RD Digital I/O more
Manufacturer: RD Laboratories
Year: 1983
Type: Add-on
Price: £33.93
Blurb: Digital I/O interface. Requires RD Adaptor.

Name: RD Digital Tracer more
Manufacturer: RD Laboratories
Year: 1983
Type: Graphics
Price: £59.50
Blurb: Tracer arm allows you to trace images direct to screen.
" Convert your Spectrum into your very own digital paintbox. without complicated programming you can paint anything quickly onto your TV screen. You can draw lines of varying thickness, blocks of colour or shading at a stroke and print text anywhere. Then you can englarge or reduce your picture, turn it upside down or even make a mirror image. "
Note: Came with a tape RD Digital Tracer.
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Name: Receiver more
Manufacturer: Ash Micro Services Ltd
Year: 1983
Type: Add-on
Price: £22.95

Name: Red Box Starter Pack more
Manufacturer: Red Boxes
Year: 1986
Type: Add-on
Price: £129.00
Blurb: Consists of three units, Red Leader, Red 1 and Red 2. Red Leader is the microcomputer that uses the Spectrum as a terminal, from which it can be programmed. Once done, it can be left alone to do its task.
Red 1 is a slave unit that plugs into a standard wall power socket, Red 2 is an infra-red sensor. Both units connect to Red Leader, and can be controlled by it. Each unit can be 'read' and operated individually, and more units can be added. A built-in clock adds further uses, as each unit can be programmed to switch on or off at a given time. Ideal for home security.

Name: Redditch I/O Port more
Manufacturer: Redditch Electronics
Year: 1983
Type: Add-on
Price: £18.95
Blurb: 24 line I/O port

Name: REL 4 more
Manufacturer: Harley Systems Ltd
Year: 1983
Type: Add-on
Price: £55.00
Blurb: Max const. current 5A. Max voltage 250V. 1KW per channel. 4 channels.

Name: REL 4.2 more
Manufacturer: Harley Systems Ltd
Year: 1983
Type: Add-on
Price: £58.00
Blurb: As REL 4.

Name: Remote, The more
Manufacturer: Blue Alpha Electronics
Year: 1992
Type: Joystick
Price: £34.99
Blurb: Two boxes that allow you to play games at a distance from the TV. Basically its an ultrasound joystick adaptor that uses standard joysticks. You plug one box into the Speccy and the other into your joystick. It has a usable distance of up to 8 metres at a 30 degree single angle.

Name: Reset Switch more
Manufacturer: Central Electronics
Year: 1987
Type: Add-on
Price: £3.49
Blurb: Saves wear & tear.

Name: Reset Switch more
Manufacturer: Processor
Year: 1983
Type: Add-on
Price: £3.95

Name: Reset Switch more
Manufacturer: S. Bower
Year: 1983
Type: Add-on
Price: £2.95

Name: Reset Switch Box more
Manufacturer: Computerworld
Year: 1985
Type: Add-on
Price: £4.49
Blurb: On/Off switch.

Name: Reset Switch Box more
Manufacturer: Microdeal
Year: 1985
Type: Add-on
Price: £4.49

Name: Ricoll Action Replay more
Manufacturer: Ricoll Electronics Ltd
Year: 1984
Type: Sound/Speech
Price: (just under £100)
Blurb: Sound sampler that allow record/playback and storing of samples. Glitch free loops and playback at any pitch.

Name: Ricoll Buffered Motherboard more
Manufacturer: Ricoll Electronics Ltd
Year: 1984
Type: Add-on
Blurb: Allows up to 8 interfaces to be attached to the Spectrum.

Name: Ricoll RIFG Sound Generator more
Manufacturer: Ricoll Electronics Ltd
Year: 1983
Type: Sound/Speech
Price: £39.95
Blurb: Same unit as the RISG but has a programmable filters and two 8bit I/O ports.

Name: Ricoll RIKB1 Keyboard more
Manufacturer: Ricoll Electronics Ltd
Year: 1983
Type: Keyboard
Price: £37.95
Blurb: Full travel 41-key keyboard plus full sized spacebar. Shift keys on both sides. Metal case.

Name: Ricoll RISG Sound Generator more
Manufacturer: Ricoll Electronics Ltd
Year: 1983
Type: Sound/Speech
Price: £29.95
Blurb: 3 channel sound synthesiser. Built-in amplifier and speaker. Built-in sweep filter, low pass, band pass and high pass filter. 3 Programmable oscillators (0.01Hz to 62KHz). Envelope shaper.
Uses the AY3-8910 chip.

Name: Robot Arm more
Manufacturer: Fischertechnics
Year: 1984
Type: Robot
Price: £65.00

Name: Robotek Interface more
Manufacturer: Datel Electronics Ltd
Year: 1984
Type: Add-on
Price: £29.99
Blurb: Robotics and model controller.

Name: Rombo Vidi-ZX more
Manufacturer: Rombo Productions
Year: 1988
Type: Graphics
Price: £29.95
Blurb: Video digitiser for all Spectrums. Grabs at 10 fps.
Note: Came with the Rombo Vidi-ZX tape.

Name: RomJoy more
Manufacturer: Rom Digital Ltd
Type: Joystick
Price: 12.900 Greek Drachmas
Blurb: A programmable joystick i/f which plugged into the expansion port and with wires (later revision with switches) emulated various keypresses.

Name: ROM Rammer more
Manufacturer: Pip Electronics
Year: 1985
Type: Add-on
Price: £35.00

Name: RomSound more
Manufacturer: Rom Digital Ltd
Type: Sound/Speech
Price: 9.900 Greek Drachmas
Blurb: Internal circuit that could output sound from the RF port.

Name: ROM SP more
Manufacturer: Camel Products
Year: 1984
Type: RAM/ROM
Price: £29.95
Blurb: EPROM reader. Up to 16K.

Name: Rotronics DR2301 Computer/Audio Cassette Recorder more
Manufacturer: SMT
Year: 1984
Type: Cassette
Price: £36.95

Name: Rotronics DX-85 Printer more
Manufacturer: SMT
Year: 1985
Type: Printing
Price: £199.95

Name: Rotronics Portable Case more
Manufacturer: SMT
Year: 1983
Type: Miscellaneous
Price: £34.49
Blurb: The best accessory for your micro. Here is an ideal portable workstation. Contains places for your Spectrum, tape recorder, power supply, printer and tapes.

Name: Rotronics Wafadrive more
Manufacturer: SMT
Year: 1984
Type: Cassette
Price: £99.95
Blurb: Mass data storage unit. Dual 128K drives. Centronics & RS232 ports.
Note: Came with Spectral Writer in the package.
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Name: RZ1 more
Manufacturer: Stephen Adams
Year: 1983
Type: Add-on
Price: £20.00
Blurb: Allows you to control the tape motor and input/output select.