Sinclair ZX80 / ZX81 / Z88 Forums

I’ll take a different approach

The membrane layout on the Minitel keyboard is SLIGHTLY different than the ZX81 membrane.

Trying both versions in the JSZeddy emulator, the program only works on the new Lambda ROM (The one that says READY). When RUN on the old ROM, is displays garbage on the screen, when pressing the arrow keys. The contents of the D-file inside the file, is only displayed on the old ROM with the IDE-ve...

These are the Lambda 8300 ROMs I know about:

viewtopic.php?p=31682#p31682

And this online emulator supports both old and new ROM for the Lambda 8300. (Use the buttons 'Lambda1' and 'Lambda2').

http://rullf2.xs4all.nl/jszeddy/jszeddy.html

Yes, you have to save in between. And saving is to the program’s own tape format. So the only way to use the program is to save to real tape, or the wave tape in the Eighty One emulator. No binary file format can be used. The only way to run a program is in this environment as well. No machine code ...

Wow! This is brilliant.

Thanks for correcting me Moggy.

https://sinclairzxworld.com/viewtopic.php?f=7&t=4041 This thread talks a little about the power supply. Try searching further in the forum. Any 9V DC with 650mA or more will work. +5V on the middle pin. It will even work with 5V power supply, but then an attached 16kB RAMpack will be destoyed, so th...

Try any power supply with 9V DC on the middle pin.

If your main problem is missing simple storage, now when ZXpand is unobtainable, you can buy a cheap ESP32, load plenty p-files into it. Search for “Wespi” in the forum for links. There are two different firmwares: One to emulate fast tape, and one with fast tape+VGA output. https://sinclairzxworld....