Sinclair ZX80 / ZX81 / Z88 Forums

What would be the differences between the ZX80 US vs UK versions? Do both have ISS 1 and 2?

bola_dor wrote: ↑Thu May 21, 2020 7:48 pm What would be the differences between the ZX80 US vs UK versions? Do both have ISS 1 and 2?

Having owned both US and UK types the only difference I could detect was the television standard between the two countries ie the modulator.
Mine was a later ABS cased model suggesting issue 2 as per my UK one.

Moggy wrote: ↑Thu May 21, 2020 9:03 pm

bola_dor wrote: ↑Thu May 21, 2020 7:48 pm What would be the differences between the ZX80 US vs UK versions? Do both have ISS 1 and 2?

Having owned both US and UK types the only difference I could detect was the television standard between the two countries ie the modulator.
Mine was a later ABS cased model suggesting issue 2 as per my UK one.

Great info.. would running 60Hz instead of 50Hz prevent some software to run? Or are there any other known implications?
Thanks

Also read this topic

Mark

Thanks for stepping in Mark, at this point I'm officially out of my depth!

1024MAK wrote: ↑Thu May 21, 2020 9:48 pm Also read this topic

Mark

Thanks..
I am about to receive one ZX80 US soon so I am quite anxious
I've already made my own video back porch composite mod from http://zx.zigg.net/misc-projects/ while waiting..
(Should this be moved to the hardware forum?)
Are there any known software incompatibility?