Buiding up and testing the ZX81+38 revision 1,9: Difference between revisions
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For those planning to build the ZX81+38, note this kit is NOT suitable for people who are not proficient in soldering. The ZX81+38 is not easy to solder, the design is dense and the solder pads are smaller than in most other designs. Also you will need to have the right tools, including an EPROM programmer. I suggest using the minipro TL866CS to program a 27C256 with four copies of the ZX-81.ROM file. | For those planning to build the ZX81+38, note this kit is NOT suitable for people who are not proficient in soldering. The ZX81+38 is not easy to solder, the design is dense and the solder pads are smaller than in most other designs. Also you will need to have the right tools, including an EPROM programmer. I suggest using the minipro TL866CS to program a 27C256 with four copies of the ZX-81.ROM file. | ||
Start by soldering the lowest parts, that is , te flat lying resistor, and the diodes (the nine 1N4148 and the single skottky diode), see this picture: | Start by soldering the lowest parts, that is , te flat lying resistors, and the resistor packs, and the diodes (the nine 1N4148 and the single skottky diode), also the three main sockets. | ||
see this picture: | |||
[[File:Low components first.jpg|1000px]] | |||
Revision as of 15:06, 7 May 2023
| Project Building up the ZX81+38 | |
|---|---|
| |
| A manual on how to build the ZX81+38 | |
| Status | Initializing |
| Contact | mahjongg |
| Last Update | 2023-05-07 |
For those planning to build the ZX81+38, note this kit is NOT suitable for people who are not proficient in soldering. The ZX81+38 is not easy to solder, the design is dense and the solder pads are smaller than in most other designs. Also you will need to have the right tools, including an EPROM programmer. I suggest using the minipro TL866CS to program a 27C256 with four copies of the ZX-81.ROM file.
Start by soldering the lowest parts, that is , te flat lying resistors, and the resistor packs, and the diodes (the nine 1N4148 and the single skottky diode), also the three main sockets. see this picture:
