Lardo buys another zeddy

ZX80 / ZX81 hardware and software offered for sale or swapping
Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Mon Nov 18, 2019 5:42 pm

And here we have the limited ‘Hoth’ edition ZX81 released in honour of The Empire Strikes back. How on earth did they do this?
82F84119-D236-4392-8209-ED81DBFBB459.jpeg
It also looks like someone used a scourer to remove a label at some point. :shock:

Sadly the RAM and ULA are both dead. RAM not an issue as I will upgrade it to 16K but the ULA is. I have run out of spares. Hopefully Andy is making another batch soon!
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Fri Dec 13, 2019 5:18 pm

Been a while so here is an early issue one that came with a ZX80 black PSU. It kind of works...

B1101F01-F697-4698-AB60-F8D649164D01.jpeg
2278AD78-2021-48F1-91C5-940B1792F317.jpeg

The ULA is 8106 but the Z80 is 8805. I guess it was repaired at some point.
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Wed Dec 18, 2019 4:37 pm

Another issue one. It had a bugged ROM. And well attached RAM pack.

EDF3C62F-135F-4FAA-822D-40D7301AE68D.jpeg

Really well attached...

0060E3E0-4A90-4869-9368-98E77B54DED1.jpeg
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Wed Dec 18, 2019 4:51 pm

All working but clearly repaired at some point! A turned pin green socket. Nice.

8FCF1059-CF3F-48E8-AF77-5AA4C0991DB2.jpeg

Edit - the ULA died while testing. :cry:
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Fri Jan 10, 2020 3:28 pm

Another one. :D

This is an early (8106) self built one with a ZX80 16K RAM pack. It has the bugged ROM.

All working so far! Only tested the RAM briefly by doing DIM A(3000) and it returning 0/0.

The last three I have had all had dodgy ULAs. Heres hoping for better luck with this one.

EF960B6A-99C2-47C2-87F9-3153DE09BEBE.jpeg
3753C4A0-4759-45E3-ACDE-3081D1FB2C6C.jpeg
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

Lardo Boffin
Posts: 1122
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin » Tue Jan 14, 2020 1:42 pm

I must admit I bought this mainly for the case as I have one to sell that it is very poor condition and this one is much better.
But I was also curious about the RAM!

99F727C8-BF67-4C39-AF80-F7D5CA23EB0A.jpeg
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

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