| Another Look at 450ns EPROMS vs the ZX81/TS1000 | Paul Hunter's comments on using 450ns EPROMs on ZX/TS computers (May83) strike me as true but incomplete. Paul shows how to add a flip-flop to delay the computer by inserting wait states and thus make the computer read slow EPROMS. You can use another chip select scheme to cure access problems without adding circuitry or slowing down your computer. | Sinclair ZX81, Timex/Sinclair 1000 |
| Dear Editor | Custom keytops are available from MULE Electronics; high pitched whine from TV; beware of overvoltage conditions; use Atari 822 paper on TS2040; Memotech printers; Paul Hunter offers excellent service. | Sinclair ZX81, Timex/Sinclair 1000 |
| Draw A Picture Program | Draw circles, diagonals and straight lines easily with this drawing program. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
| Golf Partner | Stores your golf scores and calculates your average and handicap. The program holds information for 100 rounds of golf, and calculates the statistics after your first ten entries. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
| Learning Timex/Sinclair Basic | Review of the book by David Lien. | Sinclair ZX81, Timex/Sinclair 1000 |
| Memotech Announces New Computer | Memotech Corp. has announced a new computer which will reach stores in October. The 16-color Z-80 based unit, known as the MTX 512, holds 80K RAM, uses CP/M, Apple, IBM and Memotech's own software, | |
| New Products and Services (Syntax v4 n7) | New products from Tom Woods, Kopak, L. Harmon, f/22 Press, 2-Bit Software, Barlog Software, Celestial Software, SyncMaster, CRC Software, Timeworks, K.D.V.H.E. Publishers, Starburst Software, Intercomputer, Hawg Wild, D. Lipinski Software, Polymath, Russell Brewer, Bob Fingerle. | |
| Penny Gambler | Have some fun playing poker with your computer-naive neighbor. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
| Program Improvement | Improve video effects in Letter Recognition Train. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
| Saving Unsaveable Programs | This trick LOADS any program and then returns to BASIC, without activating the error detector. | Sinclair ZX81, Timex/Sinclair 1000 |
| Sinclair Tech Line Over, Plans Think-Tank | Sinclair Research no longer provides technical information by phone. | |
| Softsync Ready with TS2000 Software | Softsync says it's ready whenever Timex is, with TS2000 software now for sale. | Timex/Sinclair 2000, Timex/Sinclair 2068 |
| SQ-UP | John Oliger reports an error in his 64K RAM board project in Summer SQ. Schematic 1, p. 47 (MC mod), shows pins 1 & 13 tied to GND. Tie both to Vcc to make the circuit work. | Sinclair ZX81 |
| Super Joystick | Use readily available hardware to create a full-function joystick compatible with the ZX81. | Sinclair ZX81, Timex/Sinclair 1000 |
| TS1500, Modem Delays | Timex manufacturing chief Carlos Dragovich says Timex now plans late August releases of both TS1500 and TS2000 models. Timex said last month it planned July sales for TS1500s, and August sales for TS2000s. | Timex/Sinclair 1500, Timex/Sinclair 2000, Timex/Sinclair 2068 |
| Two Inexpensive Power Backup Supplies | Both SVR-2 and UPS-1 prevent power loss from transients or total power failure. | Timex/Sinclair 1000 |
| Vendor Report and notes | Bob Berch changed his business name to Cinagro Software; DJM is now Starburst Software. | |
| ZX Scramble | Review of the game from International Publishing & Software. | Sinclair ZX81, Timex/Sinclair 1000 |
| ZX/TS Users' Groups | Lumberton, NC: Tripp Brown, 502 Sandlin Dr., Lumberton, NC 28358, [phone number omitted]. San Francisco, CA: Timex Sinclair Users Nationally Active Megagroup, Inc., Walt Gaby, 3325 Pierce St., San Francisco, CA 94123. Cleveland, OH: Timex Sinclair Users Group of Cleveland, R. F. Sieg, 19502 Thornridge Ave., Cleveland, OH 44135, [phone number omitted] (home), [phone number omitted] (work). | |
| ZX/TS Weather Forecast | Forecast tomorrow's weather, and calculate actual temperatures based on wind chill and humidity readings with this easy-to-use program. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
