Name: Games Board more
Manufacturer: Marvic Marketing
Price: £9.95
Blurb: Plastic casing that fits over the Spectrum keyboard. Holes over the keys are then filled by small 'pegs' that act as keys. Using only the keys set within games, allows for more accurate key presses.
Source: Sinclair User Jan 85

Name: Gamestar Cable Box more
Manufacturer: Cable Interactive Services
Blurb: Small box about the same size as a VTX, that plugs into the cable network and allows you to download software. Not much info on either the box, or the service ?? News article in Crash 4 (May 84)
Source: Crash issue 4 (May 84)

Name: General Sound more
Manufacturer: X-Trade Group
Price: £20.00
Blurb: This is a 4 channel, 8-bit sound board. It has its own Z80 CPU onboard, running at 12MHz and 128Kb of memory (16Kb ROM and 112Kb of RAM). The card is AY-3-8910 compatible and uses a sampling frequency of 37.5KHz.
Source: X-Trade
Note: Nemo (author of Nemo KAY clones) and Scorpion made an improved version later. Due to the complexity of the circuit no amateur copies were made.
The GS was very popular in Eastern Europe.

Name: General Sound Memory Module more
Manufacturer: X-Trade Group
Price: £12.00
Blurb: A memory module for the General Sound board. With this module installed, your GS board will have 512Kb of RAM in total.
Source: X-Trade

Name: Genesis P101 more
Manufacturer: Powertran Cybernetics
Price: £1750.00
Blurb: Professional hydraulic arm. 6 degrees of movement; waist, shoulder, elbow and wrist evevation, wrist roll and gripper. Uses position feedback sensors.
Source: The Home Computer Advanced Course 1984

Name: Gorlitz Epson Interface more
Manufacturer: Gorlitz Computerbau
Price: ?
Blurb: Sinclair Spectrum Interface für EPSON RX-80 sowie FX-80

Name: Grafpad more
Manufacturer: British Micro
Price: £143.75
Blurb: Drawing into the future. Graphics pad complete with light pen and software.
Source: Sinclair User May 84
Read the feature

Name: Gun Stick more
Manufacturer: MHT Ingenieros S.L.
Note: The GunStick was available at least for Amstrad, Spectrum, MSX and PC. It has been often said that the Amstrad, Spectrum and MSX versions were identical, both externally and internally. The GunStick was also marketed in France by Ubi Soft, but probably just for the CPC.