Hi all, I bought a bunch of new old stock components this week which included a small 18-pin Ferranti IC dated 8140. I can't seem to find any information about it online. It's marked ULA 1026E. Does anyone know anything about it?
Oops, I typed 9-pin instead of 18-pin in the title, can that be edited?
Unknown 18-pin ULA chip
Unknown 18-pin ULA chip
Last edited by Tezz on Fri May 05, 2017 4:13 pm, edited 1 time in total.
Re: Unknown 18-pin ULA chip
Yes when you edit your post you can also edit the subject. The first ever subject is also the subject of the thread. So this easy to change.
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: Unknown 18-pin ULA chip
thanks Paul, I missed that!
Re: Unknown 18-pin ULA chip
It's the ULA used in the Sinclair printer.
Re: Unknown 18-pin ULA chip
I don't think there is anything online but when you've stared at the internals of many knackered Sinclair printers (its natural state) over the years these things tend to stick in your mind. 
Re: Unknown 18-pin ULA chip
I must be one of the few left with a fully working ZX printer or at least until new belts are available if that campaign succeeds 
Re: Unknown 18-pin ULA chip
It could be the ULA out of the 16K Ram pack, mine has one.. not that it is working. no -5volts
Re: Unknown 18-pin ULA chip
confirmed it is the ULA from the Sinclair printer... Alas mine is in need of a new belt 
regards andy
p.s there i a service manual here http://www.zx81.de/english/zxpr_sm.htm
regards andy
p.s there i a service manual here http://www.zx81.de/english/zxpr_sm.htm
what's that Smell.... smells like fresh flux and solder fumes...
Re: Unknown 18-pin ULA chip
Confirmed five posts ago.Andy Rea wrote: ↑Thu Aug 03, 2017 7:37 pm confirmed it is the ULA from the Sinclair printer... Alas mine is in need of a new belt
regards andy
p.s there i a service manual here http://www.zx81.de/english/zxpr_sm.htm
