Memory board with I/O
16K or 32K and two 8-bit LS TTL input ports and two 8-bit latching output ports.
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Timex/Sinclair 1000
BBU-1
Provides up to one hour of power via NiCd batteries. Connects between power supply and computer.
BBU-2
Provides more than two hours of power via NiCd batteries. Includes built-in, heavy duty power supply, power indicators and power switch.
Graphics Toolkit
22 machine code routines: draw/undraw, foreground on/off, border/unborder, fill, reverse, etc. 16K.
Double “H” Keyboard
Full-size, full-stroke, 53 key, fully assembled, gold contact keyboard for all Sinclair ZX80/ZX81, MicroAce, and TS 1000 computers. Full-length space bar and 2 oversized shift keys for easier typing. Includes plans and schematics for three special circuits you can build to utilize the 12 extra keys: electronic shift-lock, automatic repeat, automatic shift.
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Player ZX81
2 octaves, 127 note length, any tempo. Songs repeat. Random sounds also. Also sold as “MUSIC!” 1K.
STD Bus Interface
Converts the ZX bus to STD Bus. Allows for use of peripheral interface cards from numerous manufacturers. On-board memory expansion option. Memory-mapped ports.
Steel Beam Design
Calculates and displays the required steel beam (W-section) based on input of span, load and loading type. 12 options of beam type and loading. 16K.