Search found 325 matches

by nollkolltroll
Tue Dec 09, 2014 10:34 pm
Forum: Emulators
Topic: EO + ZXpand?
Replies: 26
Views: 26356

Re: EO + ZXpand?

Thanks, will try it asap.
by nollkolltroll
Tue Dec 09, 2014 5:52 pm
Forum: Emulators
Topic: EO + ZXpand?
Replies: 26
Views: 26356

Re: EO + ZXpand?

Sorry for reawakening an old post, but my question is relevant.
I can't find any info on how to use sub-folders, was it ever possible? It'd be really useful to me. Now that I have the real zxpand, I have some code to test/debug on the emu before deploying on the real thing...
by nollkolltroll
Sat Dec 06, 2014 10:17 am
Forum: Hardware
Topic: Zxpand power requirements?
Replies: 16
Views: 4855

Re: Zxpand power requirements?

I've run with my new 7.5V switching power supply all morning without any problem whatsoever. So it seems that zxpand does not like too high voltages from old ZX power supplies. One good thing about the new supply is that the heatsink on the zeddy gets barely warm :D Another good thing is that I was ...
by nollkolltroll
Fri Dec 05, 2014 11:57 pm
Forum: Hardware
Topic: Zxpand power requirements?
Replies: 16
Views: 4855

Re: Zxpand power requirements?

Just finished a conversion of a switching supply 12V => 7.5V and running MultiScroll demo now to see if it is stable. So far so good!

Thanks for the link, enlightenment feels good.
by nollkolltroll
Fri Dec 05, 2014 11:10 pm
Forum: Hardware
Topic: Zxpand power requirements?
Replies: 16
Views: 4855

Re: Zxpand power requirements?

OK, I will try a lower voltage supply and see what happens.
If anyone does find the mod-thread I'd appreciate a link. Didn't find it myself. Lacking search-power tonight.
But first, I'll try to get the original working.
by nollkolltroll
Fri Dec 05, 2014 9:50 pm
Forum: Hardware
Topic: Zxpand power requirements?
Replies: 16
Views: 4855

Re: Zxpand power requirements?

Both of mine are 700mA supplies as well... Have run for a while now without reset, but had lots of them an hour ago. No HW changes, and the interface seems stable, no wobble-resets. Did a recheck with the scope, and connected to the zeddy I have 11V with quite a lot of sine. 14.5V unconnected, almos...
by nollkolltroll
Fri Dec 05, 2014 9:10 pm
Forum: Hardware
Topic: Zxpand power requirements?
Replies: 16
Views: 4855

Zxpand power requirements?

While testing the zxpand I've run into a problem. The ZX81 resets when it has run a while. I changed the 7805 to a new one, @1A, which I hope is enough since that was what was on the original. I've replaced some of the caps as well. The ZX81 runs without any problems with a 16k memory expansion, Mem...
by nollkolltroll
Fri Dec 05, 2014 7:49 pm
Forum: GAMES
Topic: PANDEMIC - New 16K ZX81 Game
Replies: 11
Views: 8262

Re: PANDEMIC - New 16K ZX81 Game

I disagree. When the games are as good as this, big-pixel is NICE!
by nollkolltroll
Fri Dec 05, 2014 3:04 pm
Forum: SALES
Topic: More ZXpands Available Now
Replies: 96
Views: 41243

Re: More ZXpands Available Now

My package arrived today, in perfect time for a weekend full of hacking :D
by nollkolltroll
Tue Dec 02, 2014 8:39 pm
Forum: Hardware
Topic: Imagine...
Replies: 7
Views: 2218

Re: Imagine...

All valid reasons PokeMon, thanks. It's so easy to forget all the "hidden" limitations of old hardware.