Search found 1648 matches

by Moggy
Sat Jul 21, 2018 3:03 pm
Forum: Sinclair Misc
Topic: Ferranti ULA doc may be of interest
Replies: 12
Views: 1294

Re: Ferranti ULA doc may be of interest

Found it!! A video of a 2c184 ULA being de-capped and showing its various interconnections, it's French language but the picture should suffice. The relevant bit starts about 8 mins in and if you pause the video at 10:07 you can compare the ULA cell matrix to the one in the pdf posted by Andy, they ...
by Moggy
Fri Jul 20, 2018 11:06 pm
Forum: WANTED
Topic: Memotech Keyboard
Replies: 9
Views: 1282

Re: Memotech Keyboard

White key one just like mine, but if you give it some stick and not use it once a year like most people the legends come off faster than a hookers drawers and the crappy thin sliding switch contacts likewise (had mine 30 years along with other external keyboards so know the difference). Memotech loo...
by Moggy
Sat Jul 14, 2018 1:14 pm
Forum: Sinclair Misc
Topic: Ferranti ULA doc may be of interest
Replies: 12
Views: 1294

Re: Ferranti ULA doc may be of interest

I'm almost sure Mark posted something re this PDF some time ago and gave an explanation of the ULA's heat output being due to,amongst other things, a collection of voltage regs scattered about the chips periphery. As for the decapping I have seen a collection of stills for the 81(I'm aware of the ma...
by Moggy
Sat Jul 07, 2018 3:21 pm
Forum: SALES
Topic: ZX81 ULA
Replies: 56
Views: 2169

Re: ZX81 ULA

gammaray wrote:
Fri Jul 06, 2018 11:27 pm
I am going to put a heatsink on mine! :D
My attack moggy (Keith) loved this so much he asked me to post this.

He also muttered some thing about booking a flight to the lone-star state for him and his M16 to enjoy a short hunting holiday. :twisted: :twisted: :twisted:
by Moggy
Fri Jul 06, 2018 10:23 pm
Forum: SALES
Topic: ZX81 ULA
Replies: 56
Views: 2169

Re: ZX81 ULA

Don't worry guys I predict everybody will end up happy.

Kudos to you Andy, how the hell have you kept your eyesight soldering those tiny little wotnots? :ugeek:
by Moggy
Thu Jul 05, 2018 9:33 pm
Forum: SALES
Topic: ZX81 ULA
Replies: 56
Views: 2169

Re: ZX81 ULA

Never had a problem removing say ULA's from issue 3 boards with just a pump and sucker, and replacing them even easier in the absence of sockets,not ruined one yet.

Like you say damaging the board is the main thing and I've always found spectrum boards to be more fragile than the 81.
by Moggy
Thu Jul 05, 2018 9:27 pm
Forum: Hardware
Topic: ZX81 rebuild
Replies: 124
Views: 7688

Re: ZX81 rebuild

Lardo Boffin wrote:
Thu Jul 05, 2018 9:20 pm
McKlaud wrote:
Thu Jul 05, 2018 9:06 pm
:geek: well done, well done :geek:
Thanks. One of your ROMs will be going into it!
Hopefully not the X2 ROM (it's packed with C-4 and a certain keypress combination sets it off) :lol:

Apologies it's whisky night.
by Moggy
Wed Jul 04, 2018 4:51 pm
Forum: SALES
Topic: ZX81 ULA
Replies: 56
Views: 2169

Re: ZX81 ULA

I wouldn't worry too much, Knowing Andy as I do I predict he won't stop till we all have at least one each and kudos to him for giving up the most important thing there is,that's his time and considering he's hand assembling the buggers himself it must be lengthy.
by Moggy
Mon Jul 02, 2018 3:58 pm
Forum: GAMES
Topic: Oh no not again - ZEDRAGON II
Replies: 42
Views: 2308

Re: Oh no not again - ZEDRAGON II

I'm sure the autoboot is only there to load the MENU.p file for ZXpand commander so perhaps it's that p file that's corrupt?

Just a thought.


Here's my working menu file for comparison.
by Moggy
Mon Jul 02, 2018 11:54 am
Forum: SALES
Topic: ZX81 ULA
Replies: 56
Views: 2169

Re: ZX81 ULA

There's a whisper going around that the company who took over Ferranti have put in an order for 15,000 units! :lol: