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Time to go back in time again - ZX80 replica build

Any 8bit repairs, images, cool things, upgrades etc.
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

Not quite finished, but very close :)

IMG20250916114120.jpg
IMG20250916114120.jpg (269.45 KiB) Viewed 468 times
IMG20250916114058.jpg
IMG20250916114058.jpg (170.47 KiB) Viewed 468 times

Hoping the remaining parts will arrive pretty soon.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Re: Time to go back in time again - ZX80 replica build

Post by HigashiJun »

Looks good.

Well done !

:bravo:
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

HigashiJun wrote: Tue Sep 16, 2025 11:47 am Looks good.

Well done !

:bravo:
Thanks, I'm pretty pleased with it, all it has to do now is work :)
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Re: Time to go back in time again - ZX80 replica build

Post by HigashiJun »

rubber_jonnie wrote: Tue Sep 16, 2025 11:48 am Thanks, I'm pretty pleased with it, all it has to do now is work :)
I guess it will...
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

HigashiJun wrote: Tue Sep 16, 2025 11:49 am
rubber_jonnie wrote: Tue Sep 16, 2025 11:48 am Thanks, I'm pretty pleased with it, all it has to do now is work :)
I guess it will...
After all the fun and games building and troubleshooting the OSI 600 & 610, any troubleshooting for this should be easy as pie :)
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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JezC
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Re: Time to go back in time again - ZX80 replica build

Post by JezC »

rubber_jonnie wrote: Tue Sep 16, 2025 12:00 pm
HigashiJun wrote: Tue Sep 16, 2025 11:49 am

I guess it will...
After all the fun and games building and troubleshooting the OSI 600 & 610, any troubleshooting for this should be easy as pie :)
Talk about tempting fate....
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

JezC wrote: Tue Sep 16, 2025 12:22 pm
rubber_jonnie wrote: Tue Sep 16, 2025 12:00 pm

After all the fun and games building and troubleshooting the OSI 600 & 610, any troubleshooting for this should be easy as pie :)
Talk about tempting fate....
:lol:

What would my posts be like without a bit of adventure 😁
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Top
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

OK, ROM is burned and installed:

IMG20250917102602.jpg
IMG20250917102602.jpg (235.87 KiB) Viewed 443 times

The two 'hanging' legs connected to the mainboard are what's required to use a 2732 in place of an 8332/2532/mask ROM due to slight differences in pinout.

This information can be found on Grant Searle's pages here: Grant Searle and here for the ZX80 specific pages: Grant Searle - ZX80
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Top
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HigashiJun
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Location: Tokyo

Re: Time to go back in time again - ZX80 replica build

Post by HigashiJun »

I'm really impatient to see the end of this nice project !

8-)
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rubber_jonnie
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Re: Time to go back in time again - ZX80 replica build

Post by rubber_jonnie »

HigashiJun wrote: Wed Sep 17, 2025 1:42 pm I'm really impatient to see the end of this nice project !

8-)
Me too but no post at all this week :(
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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