http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... =p3907.m29
Interesting. I'm tempted to bid on it just to find out what it is!
81 with built with internal RAM and ROM expansion? Who knows....
What on Earth is this??? (Ebay weird ZX81 auction)
Re: What on Earth is this??? (Ebay weird ZX81 auction)
It's not an engineering piece or prototype IMHO. The wiring's too rag-tag. Well done but nonetheless. The caps on the edge of the ttl board are all different. A dev team would have a box of similar caps. I don't think they wouldn't bother hacking an '81 to that extent. A prototype would be built on a eurocard, not squeezed into an '81 case.
The calculator is a rockwell, if it was anthing to do with Sinclair it'd have a SOC model, no?
I think this is 'just' an extreme hobbyist machine. Worthwhile having a look at though! I remember one memory upgrade that sat under the keyboard and came with a new heatsink - I wonder if that's what this is?
If you bid let me know - I won't bid against you.
C
The calculator is a rockwell, if it was anthing to do with Sinclair it'd have a SOC model, no?
I think this is 'just' an extreme hobbyist machine. Worthwhile having a look at though! I remember one memory upgrade that sat under the keyboard and came with a new heatsink - I wonder if that's what this is?
If you bid let me know - I won't bid against you.
C