Search found 4 matches

by AndyP
Sat Jun 05, 2021 11:21 pm
Forum: Hardware
Topic: Another PCB, again ;)
Replies: 29
Views: 11184

Re: Another PCB, again ;)

If there's one available I could use it
by AndyP
Sun May 16, 2021 7:18 pm
Forum: Development
Topic: ZX81 ULA-in-a-CPLD
Replies: 238
Views: 131956

Re: ZX81 ULA-in-a-CPLD

Hi Mark,

Thanks, I'd already found them but was trying to be a lazy b*gg*r and not have to design my own pcb.

Not to worry, time to get Kicad updated once I've mastered CPLD design.

AndyP
by AndyP
Thu May 13, 2021 8:22 pm
Forum: Development
Topic: ZX81 ULA-in-a-CPLD
Replies: 238
Views: 131956

Re: ZX81 ULA-in-a-CPLD

I realise that this is a very old thread but, does anyone have any gerbers/schematics/pcbs/ lying around for any of the ULA replacements that use either Xilinx or Altera devices?

Thanks

AndyP
by AndyP
Tue May 11, 2021 10:41 pm
Forum: Welcome Area
Topic: Hi Folks, Newbie from Scotland
Replies: 2
Views: 1388

Hi Folks, Newbie from Scotland

Just joined after rebuilding 2 x 48K Spectrums. 1 x Issue 2 required ULA, replaced with Nebula, recapped with switchmode regulator and SVideo Mod. Now need a case for it. Currently it's in a VIC20 case. 1 x 4S required 3 x 16K RAMs, recapped with switchmode regulator. Now looking at fixing faulty ZX...