Search found 246 matches

by McKlaud
Mon Jan 01, 2018 11:53 am
Forum: Sinclair Misc
Topic: Happy New Year
Replies: 5
Views: 1246

Re: Happy New Year

Happy New Year from Herts
by McKlaud
Sat Dec 30, 2017 12:46 pm
Forum: Hardware
Topic: zx spectrum in zx81 case
Replies: 63
Views: 15494

Re: zx spectrum in zx81 case

On the same note, Superfo also designed a small add-on board with a joystick interface and IF2 compatible cartridge slot. As soon as I am back home I will publish some photos of the full set (Issue 1 PCB, the interface and IF2 cartridge) in matching colours. ;)
by McKlaud
Mon Dec 25, 2017 6:13 pm
Forum: Hardware
Topic: zx spectrum in zx81 case
Replies: 63
Views: 15494

Re: zx spectrum in zx81 case

Wait a minute now we have to have made and adhesive overlay or dedicated membrane '81 style keyboard for Speccy in the Box...(ZXMax48) I hope Pokémon or RWAP Software or Tynemouth Software could be very kind to us and make newer version of their membranes. I would definitely buy two of them. Or som...
by McKlaud
Mon Dec 25, 2017 10:58 am
Forum: Sinclair Misc
Topic: Happy Christmas
Replies: 10
Views: 2270

Re: Happy Christmas

All the best to all of You.

Merry Christmas in 8-bits :)
by McKlaud
Mon Dec 25, 2017 10:41 am
Forum: Hardware
Topic: zx spectrum in zx81 case
Replies: 63
Views: 15494

Re: zx spectrum in zx81 case

Would you be so nice and publish your changes ? Would be great. Karl, Yes, sure. My modifications to the Issue 1 board are as follows: I spoke with Suprefo and we agreed that it would be a clean solution if minor changes to the CPLD file were done. The keyboard data lines been remapped to match ZX8...
by McKlaud
Sun Dec 24, 2017 12:41 pm
Forum: Hardware
Topic: zx spectrum in zx81 case
Replies: 63
Views: 15494

Re: zx spectrum in zx81 case

Sorted! Now ZXmax can work with any ZX81 keyboard :geek:
by McKlaud
Sun Dec 24, 2017 2:06 am
Forum: Hardware
Topic: zx spectrum in zx81 case
Replies: 63
Views: 15494

Re: zx spectrum in zx81 case

My ZX Max48 issue 1 http://fotogalleria.info/pub/ZXmax/ZXmax_01.jpg I am trying to use the ZX81 keyboard with ZX Max but, some changes are needed to KBD lines assignments in the CPLD. BTW there is also newer Issue 2 in the wild. Iss2 does have additionally the AY chip and Kempston joystick interface.
by McKlaud
Sat Dec 23, 2017 2:05 am
Forum: Hardware
Topic: Yet another ROM adapter
Replies: 46
Views: 7419

Re: Yet another ROM adapter

I used your ideas and made the other PCB layout shown on the picture below. I used THT components only. All reesistors to be installed on the other side of the PCB underneath the EPROM chip. Placing THT components is feasible and the board is still small. Having SMDs in 0805 packing do not make the ...
by McKlaud
Fri Dec 22, 2017 4:44 pm
Forum: Hardware
Topic: Yet another ROM adapter
Replies: 46
Views: 7419

Re: Yet another ROM adapter

Paul,

Why buying faulty ICs? I can send you a bunch of faulty EPROMs and Z80 for your surgical procedure if you wish. Only postage you would pay. :lol:
by McKlaud
Fri Dec 22, 2017 1:22 pm
Forum: Hardware
Topic: Yet another ROM adapter
Replies: 46
Views: 7419

Re: Yet another ROM adapter

Andy, thanks for this info. They are an interesting option, but pricey, very pricey, over $35 for set of 12 units with the delivery to the UK.