Hardware for the ZX80

Graphics

Causes normal and syntax characters, plus various graphics, to blink.
ZX80
Program each character square in one of 16 colors. Each character can be defined for high resolution graphics.
ZX80
Kit, no screen flicker.
ZX80
Standard letters; inverse characters may be mixed or interchanged with 2 sets of programmable characters. 8×8 matrix. Written by 8 POKE commands. Occupies 1E00h-1FFFh region of BASIC ROM.
ZX80 TS 1000
FAST and SLOW modes on ZX80 with 8K ROM. PCB with complete instructions and parts list. PCB will work with new ROMs if installed properly.
ZX80

Interfacing

Programmable 8255 PIA. Space for analog-to-digital converter, relays, clock chip, etc. Expansion connector for RAM pack.
ZX80 TS 1000
8 independent relays with LED status indicators and 8 TTL inputs with Schmitt trigger buffers. Single POKE to change/latch each relay. Read all 8 inputs in a single PEEK. More than one BB-1 can be attached to the computer. The BB-1 was used for:
ZX80 ZX81
This motherboard provides four 44-pin card connectors, room for wire wrap and voltage regulator. Eight chips are needed, five for buffers and three for decoding bi-directional data bus buffers. Budget Robotics & Computing purchased the rights to make and sell the Computer Continuum board in 1984.
ZX80 ZX81
Plugs into the back of ZX81 or ZX80. Printer/RAM pack plugs onto back. Has two female connectors to accept expansion boards.
ZX80 TS 1000
Interface computer to the real world.
ZX80
Allows for connecting 16K RAM pack, QS Sound Board and another board.
ZX80 ZX81 TS 1000
Modular interface system to permit real-time application of the ZX80/81. Connected by motherboard; 5 modules available. The RD 8100 is a modular interface system capable of performing a wide variety of scientific tasks, when coupled with a Sinclair Computer (ZX 81 and Spectrum). Flexibility and compatability are built into the system, which is simple to
ZX80 TS 1000
The VOTEM was a hardware/software package that could measure, display and record real world analog signals via the cassette input. Any physical phenomenon (pressure, light temperature, etc.) that could be represented by a DC voltage could be measured. The name of the product came from the fact that it could measure VOltage and TEMperature. The
ZX80 ZX81 TS 1000 TS 2068
Interface board allows ZX80 to communicate through serial (RS232) port and parallel TTL input and output ports.
ZX80
Small board allowing 8 independent input channels and 8 output channels, directly controlled from Basic or machine code.
ZX80 TS 1000

Joystick

ZX80 TS 1000
Plans and parts to add a joystick to ZX80 with 8K ROM.
ZX80
ZX80 TS 1000

Keyboard

Plans and complete kit (keyboard, parts, etc) for add-on keyboard.
ZX80
Full sized, uncased. No soldering required. Repeat key included.
ZX80 ZX81 TS 1000
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.
ZX80 TS 1000
Large 60 key tactile feel keyboard plugs into same connectors as the existing keyboard on your ZX81, TS1000, TS1500 or TS2000. TS1000 legends and graphics in three colors on the base-molded moving key with alphanumeric characters; 8 automatic shifted keys, 2 shift keys, numeric key pad, 5″ space bar. 60 small calculator-style keys, silk-screened legends
ZX80 TS 1000
Full-size 40 key keyboard. Symbols marked in two colors.
ZX80 TS 1000
Low power CMOS circuit. Beeps when key is pressed.
ZX80
Full size keyboard with repeat key and single key rubout.
ZX80
Vinyl overlay similar to Kopak design but thinner.
ZX80 TS 1000
Emits a short beep for keypresses. Models for ZX80 and ZX81.
ZX80 ZX81
Clear vinyl keyboard overlay with holes for each key.
ZX80 TS 1000
Two different keypads available, matching double H keyboard. Both are assembled but unwired, so you can use them either for numerical keypads or as extra keys.
ZX80 MicroAce ZX81 TS 1000
ZX80 TS 1000
Vinyl overlay for Sinclair keyboard with punched holes to aid in data entry.
ZX80 MicroAce TS 1000
Allows “touch typing” and improved game playing. Made of clear, self-adhesive vinyl with key-shaped rectangular holes for easy finger positioning and tactile feedback.
ZX80 TS 1000

Miscellaneous

ZX81/TS1000 bus extender.
ZX80 ZX81 TS 1000 TS 2068
Digitizing tablet originally designed for the ZX80. User would have been able to write on the table and have the output appear as characters or draw on the tablet and output as graphics on the screen. The tablet was eventually available for Atari computers.
ZX80
Kit to reduce TV intereference.
ZX80 MicroAce
Turn ZX80/MicroAce into a machine more powerful than the ZX81, e.g., run with either 4K or 8K ROMs.
ZX80

Power

Protect all ZX80/81 ICs if voltage regulator fails by crowbar and fusing.
ZX80 TS 1000
Prevent voltage overage.
ZX80 TS 1000

Printer

Designed exclusively for use with the ZX81 (and ZX80 with 8K BASIC ROM), the printer offers full alphanumerics and highly sophisticated graphics. COPY command prints out exactly what is on the whole TV screen. Printing speed is 50 characters per second, with 32 characters per line and 9 lines per vertical inch.
ZX80 TS 1000

RAM

Uses static RAM.
ZX80
ZX80 TS 1000
Expandable to 32K.
ZX80 TS 1000
Static RAM; expands internal memory to 2K.
ZX80
Static RAM; expands internal memory to 3K.
ZX80
Static RAM expansion; works with built-in RAM.
ZX80 ZX81 TS 1000
Expandable to 64K. RKL joystick systems can be added to this unit.
ZX80 TS 1000
Static RAM; expands internal memory to 4K.
ZX80 ZX81 TS 1000
ZX80 TS 1000
Static RAM expansion; works with built-in RAM.
ZX80 ZX81 TS 1000
ZX80 ZX81 TS 1000
Complete schematic, parts list, sources, and how-to.
ZX80
Fits inside the ZX80/ZX81 and remaps internal RAM to 8-9K or 9-10K. For use with external RAM pack.
ZX80 ZX81
Stackable with Sinclair RAM or other M-16 modules to 48K.
ZX80 TS 1000

ROM

The new BASIC allows the use of floating point arithmetic to nine digit accuracy, and contains log and trig functions with inverses. This ROM facilitates improved graphics, and contains 37 new functions including DRAW, DATA, ARCSIN, VAL, and SCROLL. The plug-in conversion includes a new keyboard template and a supplementary manual.
ZX80
Use your 4K or 8K software at the flick of a switch. Optional add-ons include keyboard beeper and cassette load processor.
ZX80

RS232

Includes RS-232 port.
ZX80 ZX81 TS 1000

Sound/Speech

AY-3-8910 sound generator based sound synthesizer. Three voices, 5 octave range. Sinclair Place imported a version manufactured by Indescomp.
ZX80 ZX81 TS 1000
The Parrot used the General Instruments SP0256 speech synthesizer chip, which used 64 allophones to generate speech. Supplied with software on cassette enabling you to select, string together, and pronounce the sounds.
ZX80 TS 1000

Tape

Schematic for precision setting of cassette output level.
ZX80 TS 1000
Improves load signal level.
ZX80 ZX81
Standard cassette recorder modified for computer control. Offers file directory, read/write from programs. Uses endless loop tapes.
ZX80 TS 1000
The Z-DUBBER is an interface between the Sinclair computer and its cassette recorder which allowed even the most difficult cassette program to load more easily. Additionally, the Z-DUBBER allowed you to connect two cassette recorders to create perfect backup copies of your programs. The Z-DUBBER operated on two AAA cells.
ZX80 ZX81 TS 1000 TS 2068

Video

Produces composite video signal for monitor.
ZX80 ZX81
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