Replacing the VHF modulator with a UHF modulator on the ZX81
Replacing the VHF modulator with a UHF modulator on the ZX81 Read More »
Timex/Sinclair 1000
KAPKIT 1000
Machine language utility. Routines included are REM line generator, delete lines, line address, line length, string address, copy (LDIR and LDDR), IN, OUT, change RAMTOP, and more.
2716 * 4 EPROM Reader
Map its 2716 EPROMs anywhere in the 64K memory. Board is intended to be used as a “cartridge” for storing Sinclair programs on EPROM. It can be used to store machine code tools in the 8-16K block.
2716 * 4 EPROM Reader Read More »
ROM Board for TS1000 & ZX81
Automatically sets system RAMTOP, up to 64K, automatically boots AERCO DISC system on reset.
ROM Board for TS1000 & ZX81 Read More »
2764 EPROM Programmer
This programmer is identical to the 2716 Programmer except for the following: The circuit has been changed to accept 28 pin 2764 eproms : The eprom is mapped 2808-3FFFA. 21VDC is now required for the programming voltage. This board comes with its schematic, assy instructions, and a theory of operation sheet.
2764 EPROM Programmer Read More »