"Different" ZX81's
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
It's definitely going to get built. Whether I am brave enough remains to be seen - I will decide after reading the instructions a few times. On the plus side I have a number of working examples to cross reference! Although they all have subtle differences...
I don't have any of the computers I had back in the day so building this one knowing it has never been used will feel a bit like buying one from new in a weird kind of way. It will be MY computer - not a second hand one that I bought off some random on eBay. Although I am very grateful to various randoms!
Plus it is VERY shiny! I have seen quite a few zeddy motherboards now and this is far and away the nicest condition.
I don't have any of the computers I had back in the day so building this one knowing it has never been used will feel a bit like buying one from new in a weird kind of way. It will be MY computer - not a second hand one that I bought off some random on eBay. Although I am very grateful to various randoms!
Plus it is VERY shiny! I have seen quite a few zeddy motherboards now and this is far and away the nicest condition.
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
What happened to your kit? Dare I ask?
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Re: "Different" ZX81's
I built it of course
what's that Smell.... smells like fresh flux and solder fumes...
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
Excellent!
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Re: "Different" ZX81's
is that Uhura's console ?
what's that Smell.... smells like fresh flux and solder fumes...
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
Well, I haven’t posted a zeddy in here for a while so here’s one!
Another lovely condition issue three. It’s in such a nice box and general condition that I think I might keep this one mostly original and just zx8-ccb it. It even comes with the original till receipt and accompanying guarantee from John Menzies (the till receipt number matches on the receipt card) - very nice collectible one this!
Check out the logo - this one can’t have been out of its box much!
Another lovely condition issue three. It’s in such a nice box and general condition that I think I might keep this one mostly original and just zx8-ccb it. It even comes with the original till receipt and accompanying guarantee from John Menzies (the till receipt number matches on the receipt card) - very nice collectible one this!
Check out the logo - this one can’t have been out of its box much!
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
And here is another one - nice RAM chip!
Lardo
Lardo
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Re: "Different" ZX81's
The ROM chip looks a bit different from normal too.
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- Posts: 2169
- Joined: Sat Nov 26, 2016 2:42 am
Re: "Different" ZX81's
Is the M for Motorola?
I was going to put 16k of RAM in this one before rehoming it but don’t want to destroy the chip! Call me a sentimental old fool!
I was going to put 16k of RAM in this one before rehoming it but don’t want to destroy the chip! Call me a sentimental old fool!
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA