Sinclair ZX80 / ZX81 / Z88 Forums

For old systems this is mainly a question of the correct (twisted) cable.
For a new interface it could also be made by a jumper on the board.
Kind regards
Paul

No, its just the naked disk drive without case in a anti static bag.
Standard 1.44 MB drives with 720k capability.
Mitsumi D359M3D.
I have twenty of those.
Kind regards
Paul

Is there a description how it is used?
With rand usr, or via additional commands, patched ROM?
Kind regards
Paul

If anyone is interested,
I have access to a batch of 3,5" disk drive units, unused.
I could set some on sell my retro if there is interest.
Kind regards
Paul

Wow!
It needs 56k of ram and MC above 32k?
There are not many real zeddys having that.
Kind regards
Paul

Also welcome!
Actually it's a 3,5mm plug, not 2,5mm
Kind regards
Paul

Less than the postage.

It should work ok if it delivers enough mA. I wouldn't try a psu with less than 700mA because that's what Sinclair delivered with its devices. More is no problem. If the psu connected to the zx80 still has more than 10V I would only test for a couple of minutes, than let the regulator of the ZX cool...

Could it still be Sinclair? Sinclair Research Ltd still exists, see here . ZX80 page here . Or maybe Rick Dickinson holds the copyright? Mark Well, it's definitely not Rick Dickinson. He answered that he designed ZX81 and Spectrum cases, not ZX80 cases that were designed by John Pemberton :oops:

Thanks for the info! That's good news. I will forward this to my friend!
Anyway, meanwhile I have asked Rick Dickinson for his opinion.
Kind regards
Paul