Search found 19 matches

by schombi
Sun Aug 12, 2018 7:44 am
Forum: WANTED
Topic: Kempston Disc Interface for ZX Spectrum
Replies: 0
Views: 305

Kempston Disc Interface for ZX Spectrum

I don´t think there´s a Spectrum/Wanted section, so I post it here. Hope that´s okay.

I´m looking for a Kempston Disc Interface for my Spectrum. Any offers? Thank you!
by schombi
Fri Jul 20, 2018 5:07 pm
Forum: WANTED
Topic: Memotech Keyboard
Replies: 12
Views: 2141

Re: Memotech Keyboard

I was looking for one for ages and finally found one. The white keys are a bit yellowed, but everything works just nicely. I have to say, the Memotech is THE keyboard for the ZX81.
Memotech_keyboard.jpg
by schombi
Thu Mar 29, 2018 10:14 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

Thanks Andy! It would be great if the board worked on any Zeddy. Nevertheless, a great piece of hardware and a cool game. Unbelievable what can be achieved these days.
by schombi
Thu Mar 29, 2018 8:39 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

I then tried the ZX81 equipped with the ZX8-CB on a different monitor - same result as yesterday.
udg3.jpg
udg4.jpg
by schombi
Thu Mar 29, 2018 8:38 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

I have an update. It´s clear that the PSU is not the bad guy and it´s also clear that the UDG4rZXpand is not defective - the reason for the glitches and the vertical lines is still a mystery to me. I first tried two other PSUs - no change. I first tried an unmodified ZX81 on a super-old television a...
by schombi
Thu Mar 29, 2018 6:40 am
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

I´ll try that out as well as get back to you. Thanks for your suggestions and your offer, Andy.
by schombi
Wed Mar 28, 2018 9:49 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

I do have some basic soldering skills, but I´m far away from being good. I can replace a transistor or do a composite mod, maybe replace a faulty chip, but that´s about it. I´ll do some more testing as time allows and I will try to get one of my other Zeddys tested with the UDG4ZXpand and the ZXPand...
by schombi
Wed Mar 28, 2018 7:50 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

Cleaned the edge connector and updated to latest ZXpand+ FW 1.12 - no change. I do have another Zeddy with Composite Mod (ZX8-CB), but that one refuses to work with the ZXpand at all. I have two more ZX81, but un-modded and my displays are too modern to handle the RF signal. I believe I can see two ...
by schombi
Wed Mar 28, 2018 7:22 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 3425

Re: If you like your submarine simulations fast, arcadey,...

Why do I see such graphical glitches? I use a UDG4ZXPand and a ZXPand+
ZED1.jpg
ZED2.jpg
by schombi
Tue Jun 13, 2017 8:54 am
Forum: SALES
Topic: ZXpand+ ... 3.. 2.. 1..
Replies: 66
Views: 6979

Re: ZXpand+ ... 3.. 2.. 1..

Ordered one! Looking forward to receiving the interface.