| Build a 2764 Based "Cartridge" Board and Programmer for Your '81 | | Timex/Sinclair 1000 |
| Build a 2764 Based Cartridge Board and Programmer | | Timex/Sinclair 1000 |
| EPROM Cartridge Download Routine | | Timex/Sinclair 1000 |
| Future Commands Planned for JLO SAFE V2 | | Timex/Sinclair 2068 |
| Future Commands Planned for JLO SAFE V2 | | Timex/Sinclair 2068 |
| How to Program a 2764 EPROM Using Hot Z | | Timex/Sinclair 1000 |
| How to use the 2068 User Cartridge Board | | Timex/Sinclair 2068 |
| JLO 2068 Floppy Disk Interface | | Timex/Sinclair 2068 |
| JLO SAFE DOS v2.51 Disassembly | | Timex/Sinclair 2068 |
| JLO SAFE V2.4 Errata | | Timex/Sinclair 2068 |
| JLO SAFE V2.65 Disassembly | | Timex/Sinclair 2068 |
| John Oliger Co ZX81 TS1000 Product List | | Sinclair ZX81, Timex/Sinclair 1000 |
| Oliger 2068 Expansion RGB Circuit Instructions | | Timex/Sinclair 2068 |
| Oliger 2068/Spectrum Joystick Interface | | Timex/Sinclair 2068 |
| Preliminary Information on the Oliger/Kingsley Disc System | | Timex/Sinclair 2068 |
| Problems in Using the New V.24 "Merge" Command | | Timex/Sinclair 2068 |
| Problems in Using the New V.24 "Merge" Command | | Timex/Sinclair 2068 |
| Programming 2764 and 27128 EPROM (for TIMEX-2068 Programs Written in BASIC Only) Using the John Oliger Co. 2068 EPROM Programmer and 2068 User Cartridge Boards | | Timex/Sinclair 2068 |
| The John Oliger Co. 2068 EPROM Programmer | | Timex/Sinclair 2068 |
| The John Oliger Co. Product Lists | | Timex/Sinclair 1000 |
| Using the John Oliger Expansion System to Create Instant-Load (EPROM) Software for the TS 1000 Computers part 3 | | Timex/Sinclair 1000 |
| Using the John Oliger Expansion System to Create Instant-Load (EPROM) Software for TS 1000 Computers | | Timex/Sinclair 1000 |
