Search found 915 matches

by Lardo Boffin
Thu Apr 25, 2019 10:55 pm
Forum: Development
Topic: Pixel Plotting in ZX80 Basic
Replies: 1
Views: 208

Re: Pixel Plotting in ZX80 Basic

Interesting program and blog! Clearly a lot of patience was required.
by Lardo Boffin
Sun Apr 21, 2019 9:52 am
Forum: Hardware
Topic: ZX81 16k ram pack mod with 8118
Replies: 4
Views: 297

Re: ZX81 16k ram pack mod with 8118

I have successfully upgraded a number of zeddies following those links in the past. Top stuff!
by Lardo Boffin
Tue Apr 16, 2019 11:43 am
Forum: Hardware
Topic: Hot rodding the Zx81
Replies: 2
Views: 130

Re: Hot rodding the Zx81

1024MAK wrote:
Mon Apr 15, 2019 11:55 pm
Do you really think that we would burn you at the stake? :lol:

Mark
Moggy might if a heat sink is fitted to the ULA.
by Lardo Boffin
Sun Apr 14, 2019 10:29 am
Forum: Hardware
Topic: Zx81 from death to life??
Replies: 17
Views: 400

Re: Help my zx81 mod has gone wrong!! 8 bit death

I started out in the ‘brave’ camp. :D You really need a multi-meter. So many uses! Check the output voltage of the PSU you are about to plug into your computer. I had one running at over 16V so it would have caused problems if used. Check the voltage at various pins - are they getting 5V? A continui...
by Lardo Boffin
Sun Apr 14, 2019 9:15 am
Forum: Hardware
Topic: Zx81 from death to life??
Replies: 17
Views: 400

Re: Help my zx81 mod has gone wrong!! 8 bit death

If you have a reasonable quality smart phone take a close up photo of an affected area and then pinch and zoom on the image. I have a cheap little set of clip on lenses for mine (£4 from my local garage when bought with fuel) which helps. Needs to be done in good light but often shows things that po...
by Lardo Boffin
Sat Apr 13, 2019 9:25 am
Forum: Hardware
Topic: Zx81 from death to life??
Replies: 17
Views: 400

Re: Help my zx81 mod has gone wrong!! 8 bit death

Is that a lifted pad on the last photo? Can’t quite tell.

Did you make sure that the cap had the correct polarity when you put it back in?
by Lardo Boffin
Thu Apr 11, 2019 3:31 pm
Forum: ZX Spectrum Lounge
Topic: My Zx Spectrum "night time edition" modification
Replies: 2
Views: 234

Re: My Zx Spectrum "night time edition" modification

Looks nice. Would be interested to see the volume control. Manic Miner wakes the neighbours when it loads! :shock:
by Lardo Boffin
Wed Apr 10, 2019 7:37 pm
Forum: SALES
Topic: ZX81 heat sinks
Replies: 6
Views: 355

Re: ZX81 heat sinks

RS232 wrote:
Wed Apr 10, 2019 2:41 pm
You have enough heat sinks to cool down the wife.. what a star
Not sure about that. Not if she finds out how much the Acorn Atom cost...
by Lardo Boffin
Mon Apr 08, 2019 9:22 pm
Forum: Hardware
Topic: NOOO.. My just arrived TS 1500 is flakey!
Replies: 8
Views: 371

Re: NOOO.. My just arrived TS 1500 is flakey!

If you are in the UK Mutant Caterpillar Games can probably fix it.
by Lardo Boffin
Mon Apr 08, 2019 9:20 pm
Forum: Hardware
Topic: Eprom found inside my Zx81.. normal?
Replies: 10
Views: 282

Re: Eprom found inside my Zx81.. normal?

I have one with similar writing.

https://sinclairzxworld.com/viewtopic.p ... 008#p32174

Rubbish photo but you can just make it out.