Checking before I do anything
Re: Checking before I do anything
The modulator is 8231. Looks like I might be in luck then, and not need to do anything.
All that I've learned - https://msknight.com/bbc/index.html#zx81
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- Posts: 2173
- Joined: Sat Nov 26, 2016 2:42 am
Re: Checking before I do anything
Here are photos of some of the zeddies I have bought in the last few years:msknight wrote: ↑Tue Jan 09, 2024 12:37 pmIf I read the date code, that's 1982, week 13. I can't quite compute an issue 1 1980 zeddy having an original bios chip from 1982. Grateful for insight please.Lardo Boffin wrote: ↑Mon Jan 08, 2024 5:54 pm Given the 82 13 date code on the ROM it’s extremely unlikely to be a 550.
https://www.sinclairzxworld.com/viewtop ... 785#p34785
If you look through you will see all kinds of date based weirdness! The general consensus is that Sinclair would use whatever was to hand to build and sell a unit.
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: 2173
- Joined: Sat Nov 26, 2016 2:42 am
Re: Checking before I do anything
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: Checking before I do anything
Yes... now I know who I'm bidding against on fleabay
Replacement ULA's... someone's making new ones?
Replacement ULA's... someone's making new ones?
All that I've learned - https://msknight.com/bbc/index.html#zx81
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- Posts: 2173
- Joined: Sat Nov 26, 2016 2:42 am
Re: Checking before I do anything
Yes, there is the vLA81:
https://www.sellmyretro.com/offer/detai ... -ula-38492
Andy may also be making a new one.
https://www.sellmyretro.com/offer/detai ... -ula-38492
Andy may also be making a new one.
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: Checking before I do anything
There is also someone in the UK apparently working with them, to help reduce import and duty costs...
https://www.retrorevivalshop.co.uk/prod ... placement/
https://www.retrorevivalshop.co.uk/prod ... placement/
All that I've learned - https://msknight.com/bbc/index.html#zx81