Whats this?

Discussions about Sinclair ZX80 and ZX81 Hardware
Lardo Boffin
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Joined: Sat Nov 26, 2016 2:42 am

Whats this?

Post by Lardo Boffin »

I noticed this in a bundle of ZX81 stuff on a popular auction site and wondered what it was and if indeed it is actually anything to do with the ZX81?

BE420438-74AB-45DC-A019-B204F7A2A453.jpeg

In case it is hard to see it is an Incremental 1.2 by East London Robotics.
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
dessony
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Re: Whats this?

Post by dessony »

Can you identify and list these ICs on the certain board? So somebody can help you.

Thanks,
DesSony
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Paul
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Location: Germanys west end

Re: Whats this?

Post by Paul »

From the parts I see this is a 16k internal static RAM extension based on 2k static RAM IC.
no idea for what computer. Kind regards Paul
In theory, there is no difference between theory and practice. But, in practice, there is.
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siggi
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Re: Whats this?

Post by siggi »

My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
Lardo Boffin
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Re: Whats this?

Post by Lardo Boffin »

Well spotted!

Its in this lot if anyone is interested. Not cheap though!

https://www.ebay.co.uk/itm/Sinclair-ZX8 ... %7Ciid%3A1
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
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Andy Rea
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Re: Whats this?

Post by Andy Rea »

interesting bit of kit, NO zx81 included in that auction.. think i'll pass

Andy
what's that Smell.... smells like fresh flux and solder fumes...
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Whats this?

Post by Lardo Boffin »

Andy Rea wrote: Fri Nov 30, 2018 8:10 pm interesting bit of kit, NO zx81 included in that auction.. think i'll pass

Andy
I thought that. It started out as £150!
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
th7dude
Posts: 1
Joined: Mon Jan 28, 2019 11:51 am

Re: Whats this?

Post by th7dude »

Hi chaps, this is my listing. Sadly I have no further information on what the board does. I relisted to start at 99p though. Unfortunately I sold the rest of my micros before Christmas.
Lardo Boffin
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Joined: Sat Nov 26, 2016 2:42 am

Re: Whats this?

Post by Lardo Boffin »

Welcome! I hope you get a good price for it all.
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
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gammaray
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Joined: Sun Apr 17, 2016 2:44 am
Location: Texas

Re: Whats this?

Post by gammaray »

http://www.zx81stuff.org.uk/zx81/hardwa ... Fitted.jpg

Similar but different...is it upside down?
Incremental16K_Fitted.jpg
5-TS1000,UK ZX81<-Sheelagh, US ZX81, 2-TS1500/KDLX , 3-TS2040 printer, 2-TS2020 cassette decks, ZXPAND+AY, ZeddyNET, ZXBlast, UDG, ZX8CCB, AERCO, BUILDS/REPAIRS ZX Spectrum, ZX80 Minstrel, ZXMAX48 v1 v2, 2-TS-2068, ROM, 16kRAM
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