Improving Your Computer

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Keyboards and Accessories

Audiograph Co.
Chirper
1 K and up. $9.95.

The Chirper sound improves speed and accuracy of keyboard data entry. The sound varies from a buzzy-chirp to a click and depends on what the computer is doing. Sound is produced when a program runs, so some sound effects can be created. The Chirper installs easily inside.

Centronic Inc.
Keyboard Beeper. $21.

Gives feedback for keyboard by causing each key press (except shift alone) to produce a distinctive BEEP. Makes the use of the membrane keyboard much easier. Fits inside computer case and requires no soldering. Compatible with most full sized keyboards. Can be used even with graphics ROM installed. Optional on/off switch available at $3.50

ClearTouch
ClearTouch. $8.50 plus $1.50 s&h.

A thin transparent keyboard overlay that speeds input and improves accuracy. Lets you feel key positions, yet thin enough not to interfere with typing. Easy to install. Makes typing a pleasure. Try for 10 days.

Double “H” Electronics
Double “H” Keyboard. $49.

Full-size, full-stroke, 53 key, fully assembled, gold contact keyboard for all Sinclair ZX80/ZX81, MicroAce, and TS1000 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: 1) Electronic shift-lock. 2) Automatic repeat. 3) Automatic shift.

Special Circuit Parts Kit. $15.

All electronic parts including ICs with sockets, LEDs, resistors, capacitors, etc., to build three special circuits for ZX80, ZX81, MicroAce, and TS1000: 1) Electronic shift-lock. 2) Automatic repeat. 3) Automatic shift. Circuits will work with most addon keyboards with extra keys, such as the Double H keyboard.

Double “H” Keypad. $6 to $8.

Two different keypads available, matching our double H keyboard. Both are assembled but unwired, so you can use them either for numerical keypads or as extra keys for the special circuits above. 8 key keypad: $6. 14, $8.

Data-Assette
Auto Repeat Module. $15.

Automatically repeats any key held down for longer than 1½ seconds. Small slim PCB easily installed. No extra switch required.

“KLIK” Keyboard (KB01). $79.95.

40 key keyboard attaches directly to the TS1000 or ZX81, replacing the present membrane. Connects in minutes. Positive “KLIK” response from the keys assures that the information has been entered. Additional key available for any purpose. All legends marked in 2 colors just as the original.

Kayde Keyboard (KB02). $79.95.

Fully cased fully sized keyboard for the TS1000 or ZX81. 40 full stroke keys with all legends printed in 2 colors. Simple soldering of ribbon cable is all that is needed for installation. Repeat key.

Jigsaw Executive Keyboard (KB03). $89.95.

Fully cased with 44 full stroke keys. Special features include a Bleep for every key, a repeat key, and a full space bar. An additional shift key and an “ON-OFF” Bleep and CPU switch makes this an extremely useful addition. Easily installed, fully guaranteed.

Fulcrum Products
Keyboard Bleeper. $21.

Provides feedback missing. Touch sensitive keyboard cheaply. All 210 characters. Bleep in SLOW and FAST modes. Easy installation; no soldering required; all connections plug in. Illustrated instructions. Fits inside case under keyboard or PCB; no trailing wires; suits most full size keyboards. On/off switch $3 extra.

Ganhart/EARTHings
Typex Keyboard Overlay.
$5.95 plus $1.50 s&h. Visa/MC.

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. Mail or phone orders.

FileSixty
Buttonset.

Keyboard with moving keys. The inexpensive answer to touch keyboard headaches. Unit fits directly over existing keyboard and is held in place over the keyboard by adhesive strips. Moving keys press the membrane keyboard with specially marked dimples on the underside. Keys are color coded and all functions clearly printed. Write for details.

Gladstone
Professional Keyboard (K70). $79.95.

47 keys, full sized space bar, with a flexible plug-in connector (no soldering required).

Keyboard Case (E70). $25.

Metal case which holds both keyboard and computer; computer edge connector extends from rear allowing full use of plug in peripherals.

dk’tronics Keyboard.
Cased (D10). $119.95.
Uncased (D11). $89.95.
Case (D12). $29.95.

52 keys with 12 for keypad. Keypad repeats 0-9, has full stop and shift key; allows cursor with one hand for easier entry of numerical data. 15 x 9 x 2 1/2 inches. Computer fits inside. Inside case is a motherboard for RAM expansion. Connects with ribbon cable (supplied); no soldering required.

Memotech’s Plugin Keyboard (A73).
$99.95.

P. Hargrave
Tactile Feedback Overlay. $3.95.

For ZX80/81, TS1000 or Microace. A clear vinyl keyboard overlay with holes over each key. Lets you feel your keys. Touch typing possible. Speeds entry of data or programs. Prevents missed keys. Adhesive backed for easy installation.

Kaltek
Shift Lock Module (SL-6)
Kit: $17.46. Data for SASE.

Enables one-finger keying via touch switch to suit user, on/off keyboard. Holds SHIFT active about one second, freeing one hand. Speeds keying; helps handicapped. Module, capacitor and LED fit inside all cases. Mailed First Class in USA, CAN, and MEX pp.

E-Z Key
E-Z key 60. $84.95 + $4 s&h.

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.

KML Inc.
Keyboard Audio Circuit.
$12.00 plus $2 s&h.

The circuit emits a short beep when any single key is pressed. The circuit fits inside the ZX81 and does not require any soldering or cutting.

Memotech Corporation
Memotech Keyboard. $99.95.

For ease of operation, the Memotech keyboard is a high quality standard typewriter keyboard, with TS1000 legends. The keyboard is cable connected to a buffered interface which is housed in a standard Memopak case and plugs directly into the back of the TS1000 or other Memopaks.

Redditch Electronics
Keyboard
£19 plus s&h.

40 key keyboard with full travel keys. Labelled as the ZX81 in two colors. Fitting requires screwdriver only.

Sinclair Place
Keyboard. $55.

Full sized. 3 7/8 x 9 7/8 x 1 1/4. Uncased. No soldering required; just remove the Sinclair or Timex case and plug in wires. Repeat key included. From Haven Hardware.

Keyboard. $88.

52 Keys; 12 numberic pad which repeats 0-9, including cursors, full stop, and shift key. Fully cased. Computer is removed from its case and fitted inside the keyboard. Internal motherboard allows 16-64K RAM expansion inside the case. External port connector included. From dk’tronics.

16K RAM. $39.50.

Internal RAM expansion for above board. From dk’tronics.

64K RAM. $98.50.

Internal RAM expansion for above board. From dk’tronics.

TS2000 Keyboard. $88.

Similar to above keyboard. From dk’tronics.

Flexible Cable. $19.95.

Computer to RAM pack. From dk’tronics.

The Software House
Keyboards.
Plans: $5.
Plans and keyboard: $45.

Complete EZ to follow plans to expand your system. 58 key computer keyboard ready to wire.

Suntronics Co., Inc.
KD-81 Keyboard. $69.95 plus s&h.

41 keys, shift on both sides, space bar. Black case of high impact plastic. 10.75 x 7.25 x 2.125 inches. Key legends silkscreened in 2 colors.

SAVEing and LOADing

Abacus Electronics.
Abacus Controller for TS1000. $24.95.

Developed to eliminate tedious swapping of plugs when LOADing and SAVEing programs on cassette. Single switch selection of TALK, SAVE, CUE, and LOAD modes. Built in microphone speaker for fast and reliable program naming and cueing.

Abacus Controller for TS2000. $35.95.

Developed to eliminate tedious swapping of plugs when LOADing and SAVEing programs on cassette. Single switch selection of SAVE, LOAD, and AMP modes. Built in amplifier and loudspeaker boosts sound output.

AB Engineering
Control Center (CC-1)
$20 plus $2.50 s&h.

Eliminates cable changing, aural transducer permits accurate load level adjustments. Includes power switch, LED indicator, SAVE/LOAD switch, and LOAD monitor. Highest quality parts throughout.

Stephen Adams
The RZ1 tape controller
ZX81 or Spectrum (state which)
£25 Basic model; £30 two relay.

The RZ1 allows control of the SAVE and LOAD leads as well as the tape motor for one or tape recorders. Relay isolation from the computer allows control of 110 volts AC 1 amp from the unit. Also has a built in 5 bit port, (6 if only one motor relay fitted). Uses no RAM or I/O address, completely invisible! Outputs can be used for BANK switching (diagram provided). Very useful for word processing and data logging.

Advanced Interface Designs
Z-XLR8
16K RAM and up. Cassette: $9.50 plus $1.50 s&h.

A fast LOAD/SAVE program. Will LOAD and SAVE 6 to 10 times faster. Fast array variable LOADing and SAVEing independent of program. Fast binary data LOADing and SAVEing anywhere in RAM. Prompts. No hardware changes. Occupies less than 2K RAM.

Z-XLR8
16K RAM and up. Cassette: $19.50 plus $1.50 s&h.

A fast LOAD/SAVE EPROM. Will LOAD and SAVE 6 to 10 times faster. Fast array variable LOADing and SAVEing independent of program. Fast binary data LOADing and SAVEing anywhere in RAM. Prompts. Simple hardware changes. Occupies less than 2K RAM between 14-16K.

CAI Instruments Inc.
CAI/ESF Mass Storage Device. $119.95.

1 – 2 drives. Menu driven; accessible through simple keyboard commands; uses small and inexpensive microcassettes that can SAVE and LOAD programs at 11000 BAUD (compared to 250 BAUD on the TS1000 tape port). A 16K program can be loaded in less than 20 seconds. The CAI/ESF is used in conjunction with the CAI/0 board which allows the user to LOAD programs through the standard tape port and transfer them to the CAI/ESF.

Centronic Inc.
Tape Loading Aid. $30.

Load tapes the first time. Includes LED indicators of voice over, program location, record level, overload. Also provides earphone monitor of tape sound and reset switch for computer. Plugs in between computer and tape recorder/power supply. No soldering or modification.

Floppy Disk Systems

The Floppy Disk Interface board is available packaged with various floppy disk drivers to the user’s specifications. A standard product will be available by mid-1983.

Floppy Disk Interface
Kit: $114; assembled: $149.95.

Interface to your Shugart SA-400 or equivalent. 35 or 40 track (specify). DOS in 2732 ROM. Compatible with RAM packs. DOS commands include: INITIALIZE, DSAVE, DLOAD, NEWD, DIRECTORY, STAT, READ, WRITE, KILL, CREATE. Loads 8K program in 10 secs.; saves 8K file in 20 secs. with verify. Plugs into expansion bus. Powered by computer.

Cinevision Systems
Loadstar. $45 plus s&h.

Calibrated distortion free tape loading amplifier for all tape machines. Triple LED displays for low, normal, overload. Reliable program loading. Superior to “monitor only” units. Connects between tape player and computer. Long battery power design.

Data-Assette
ZX 99
Uses from 8192 to 10239. $150.

Automatically controls up to 4 cassette recorders; has an RS232C Serial Printer Interface. Built-in USR Commands provides program control over the cassette decks and allows Program Listing or Tape to Tape Copy. User access to all 132 characters of ASCII.

Sharp Cassette Recorders. $35.

Dependable loading and saving of information. Automatic level control. AC/Battery operation. Most successful cassette recorder we have tried.

Charles Drury
ZXVER
2K/16K RAM. Cassette: $8. Custom version for 32K/64K: $10.

Self-running utility program to ensure your program SAVEd amd LOADed correctly. ZXVER creates a 10 byte checksum when SAVEing and verifies the stored code upon LOADing. Custom version order must specify location for the 310 bytes.

Fulcrum Products
Loading Aid. $25.

Removes guesswork from adjusting cassette recorder volume. Plugs in between computer and recorder. Red and green LEDs on optimum volume set. Red LED (only) on means volume too low. Yellow LED on means volume too high. Push button to reset K cursor: $2 extra. Earphone to monitor voiceovers: $3 extra.

Gladstone
ZX99 (D71). $149.95.

Gives software control of up to 4 tape decks (2 for loading; 2 for saving); allows mixing of data files to update and modify. Has RS232C interface allowing direct connection to any serial printer using ASCII. Has its own 2K ROM with functions called by USR; functions can be used in programs or immediate mode.

IPS Fastload Monitor Program (Z61).
$19.95.

LOAD and SAVE up to 6 times faster. Package includes 2 programs: Keyboard Monitor and Fast Loader. Both reside at RAMTOP. Fast loader can be used in front of any fast saved tape to enable it to be fast loaded thus there is no need to load the monitor for each load.

G M Harris
CF81 Cassette Filter £10.

Inserted between the ZX81 and cassette recorder during LOAD. A combination of filters and amplifiers to improve the recorded program signal for reliable LOADing. 7 x 5 x 2.5 cm. Includes cables, carriage, VAT or export postage.

H & H Electronics
Visi-Load Tape Load Moniter
Any RAM. $13.95 plus $1.25 s&h.

“Visi-Load” is a three step LED meter that allows monitoring of the correct tape loading level with just a glance. Our unit plugs inline between the computer and the tapedeck. No Soldering Required. Complete instructions included.

Intercomputer Inc.
Qsave (PL7001)
16K RAM.

LOAD/SAVE a full 16K in only 29 seconds (16 times faster). Simply plug the QSAVE amplifier/filter unit between your recorder and the TS1000; all leads are supplied. Then LOAD the QSAVE software before you LOAD a tape or key in a program. A data transfer rate of 4000 plus BAUD compared with only 250 on the standard TS1000, works with 16-64K.

Softbox. (PL7012).

This revolutionary modular box gives instant and easy access to your favorite programs just by turning on the computer. Attaches to the back of the computer. Each of the 4 heavy duty connectors can hold one cartridge. The controller allows instant access to any of these cartridges by entering a simple code. Does not require any additional power supply. Other peripherals, such as extra memory, can be attached on the back of the Softbox.

Softbox Cartridges

Most Intercomputer programs are available on solid state cartridges which plug directly onto the Softbox (up to 4 at a time) or onto the back of the computer (1 at a time). With the control cartridges you can perform different automatic functions as required at your home, office, laboratory or workshop. The cartridges eliminate the waiting for cassette-based programs to load.

Katt’s Computers
Back Up Copies
16K RAM. Listing: $3.

Make back up copies of programs. MC loading routine will stop any program after loading enabling the use of the save command.

L & G Enterprises
Level-Vu Prism
$3.95 plus $1 s&h.

The Level-Vu Prism lets you see the recessed tape counter or printer without moving from your seat; fits most recorders; magnifies counter and printer numerals. Specify if for viewing tape counter or printer.

Vu-Load Volume Monitor
$20.95 plus $2.50 s&h.

The Vu-Load insures a program LOAD every time. It monitors tape output level; gives a positive SAVE indiction; detects blank tape without disconnecting cassette wires. No wiring required. Instructions provided.

L-Monitor
L-Monitor
Kit: $17.50; assembled $23.50 pp.

Multipurpose tape loading aid assures first time LOADs. Simple connections (included). Features extremely sensitive, reliable microammeter with sophisticated circuitry; adjustable. Compact and attractive. Output for earphone, amplifier, or duplicating. Comprehensive instructions: normal use, stereo system LOADing, tonal balance, head alignment.

Micro-80 Inc.
Computer Grade Cassettes

Computer grade cassettes produced by the leading manufacturer in the microcomputer industry. 100% Error-free and fully guaranteed! In use by over 3,000 school districts and software firms nationwide. Used by thousands of computer hobbyists. Shipped 24 per pack. C-05: 59¢ each; C-10: 69¢; C-20: 89¢; C-30: $1.19. Quantity discounts available.

Microsystems Specialists, Inc.
uSS Backup
16K RAM. $14.95 plus $2 s&h.

Allows user to make backups of favorite programs using only 1 tape recorder. Provision to make multiple backups.

T-S Systems
Disk-M. $25.
64K RAM (In design for 16K).

A multi-programming system tool providing many capabilities of a disk drive at a very low cost. Features: Storing Multiple programs; storing Multiple Data Files separately from programs. Functions: SHIFT, TRADE, CYCLE, DIRECTORY, FETCH, KILL, WIPE, Line Renumber, Block Delete, Total Delete, MERGE, DATA Merge, REMfill and Line Address.

Power Supply and Accessories

Basco
Improved Heat Sink $7.95.

Machined from aluminum alloy which is 50% thicker and has over twice the surface area of the original part. No modifications are necessary and the improved heat sink is easily installed in place of the original in minutes. Guaranteed to eliminate problems caused by overheating of the voltage regulator.

Data-Assette
Data-assette Power Supply. $19.95.

Our very own high quality adapter. No fade or flicker, a full 6.75 Volts 650 ma. Thumb switch to prevent wear and tear on 9V socket. Dependable problem free extended use.

H & H Electronics
Clean Line Power Supply Regulator
Any RAM. $15.95 plus $1.25 s&h.

A pre-regulator that conditions the incoming DC voltage from the ZX/TS power pack into the minimum required to operate the computer. This allows cooler operation, reduced system crashes, and extended computer life. Also included is a system reset switch to CLEAR the computer. Complete with full instructions. No soldering required.

Power Line Control
Any RAM. $9.95 plus $1.25 s&h.

Provides control of the incoming DC Voltage to the computer via a on/off power switch with a visual indicator, and a pushbutton system reset that allows convenient system reset or power up/down. No plugging/unplugging of the power pack or cables, just press a switch. Full instructions included.

M. C. Hoffman Co.
In-Line Load Monitor. $12.95 plus $1.50 s&h.

Helps to LOAD prerecorded software from cassette every time. Instructions.

In-Line Voltage Dropper. $12.95 plus $1.50 s&h.

Lowers voltage so computer runs cooler (RAM pack, too). Instructions.

Hurricane Electronics
Power Line Filter/Suppressor Module (LFS-5A). $34.95 plus $2.50 s&h.

Protects against pulsed, continuous and /or intermittent radio frequency interference which can cause malfunctions in sensitive electronic equipment. Also protects against high voltage transients and surges such as those produced by lightning, switching surges, and noise spikes. Includes power switch, pilot light, 5 amp fuse, and two protected outlets.

SPS-2A Power Supply
$19.95 plus $2.50 s&h.

The SPS-2A is a heavy duty replacement for the standard Sinclair/Timex supply. Supplies up to two amps, enough to run external memory, printer, I/O mudules, and other add-ons. Eliminates black bars and other problems caused by an insufficient power supply. Includes LED power on indicator.

MS-4 Multiple Outlet Strip
$19.95 plus $2.50 s&h.

Helps keep your Sinclair work station neat and organized. Four AC outlets (3 terminal), power switch, pilot light, and 15 amp circuit breaker. Six foot cord.

TA-3 Transient Absorber/Outlet Strip
$29.95 plus $2.50 s&h.

Protects your computer system from dangerous voltage spikes. Absorbs transient and surges such as those produced by lightning, switching surges, and noise spikes. 3 protected AC outlets, power switch, pilot light, and 15 amp fuse.

Integrated Data Systems
Power Supply. $17.

Additional power supply. 9VDC, 1A, CSA, UL approved.

On-Off Toggle Switch. $2.24.

Silences chirper.

Reset Button. $0.80.

Provides system reset without powering down chips. Complete with instructions.

Computer improvements. $56.80.

Installation with all parts and labor of: Audiograph Chirper, Auto Repeat Key module, Reset Button, On-off switch for chirper.

Sensible Technical Solutions
Easy Z Heat Eliminators (619). $5.

Can you run your ZX 24 hours a day without overheating? Engineered heat transfer solution requires approx. 1 minute to adapt to ZX. No modification to interior of ZX required. All material required is furnished.

Support Systems One
The Cooler. $11.

The Cooler is a pre-regulator for the ZX81 and TS1000. Output rated at 1.5 amps; input rated at 9-35 VDC. Comes fully assembled with connecting cable and jack.

The Cooler Kit. $5.50.

Includes all hardware needed to build the cooler pre-regulator for the ZX81 and TS1000. Includes cable, plug jack, and diagram. Does not include case.

The Protector. $39.95 plus $2 s&h.

Stops glitches, system crashes, and erroneous data, due to noise or high voltage spikes on 120 VAC power line with the protector. Designed for the ZX81 and TS1000 with 2 AC outlets located on top for power supply to be reset without pulling plug.

ZXPS/1. $29.95 plus $2 s&h.

ZXPS/1 is a heavy duty power supply designed for the ZX81 or TS1000 fully regulated. Rated at 1.5 to 2 amps. Made to supply enough power for the ZX81 or TS1000 Computer and any add-on.

The Sync-Lair
Power Paw Power Function Unit.
$19.95.

Features plug-in unit, twice the size of its 9 V rechargeable battery, provides a Power/RESET switch, up to 15 minutes of battery back-up, and a power LED (Green for line, Red for battery).

UPSystems
UPSystems; NiCd Backup System.

Compact NiCd powered backup system that kicks in automatically at the slightest drop in voltage coming from the power supply. Just plug it into the microcomputer and you are ready. Includes a Program Loading Monitor (to solve program loading problems), an On/Off/Reset switch, NiCd and additional cords.