Lardo buys another zeddy

ZX80 / ZX81 hardware and software offered for sale or swapping
Lardo Boffin
Posts: 1527
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

Moggy wrote: Fri Oct 08, 2021 3:26 pm
Lardo Boffin wrote: Fri Oct 08, 2021 2:51 pm Well, its been a while but clearly the therapy has not worked…


A1B521FD-6696-4677-9991-EC36A7B6DFA1.jpeg


A fairly nice issue one, working, with some very nice books. I don’t think I had any for the ZX80.

As suspected from the soft spongy feet it is a fairly early one, ROM 550 so bugged for maths.


08D026F6-D309-4588-8DDD-CA65183AB2C4.jpeg

Ram chips socketed so looks like it could be a kit build.
I believe the ZX80 companion book is a bit of an holy grail. some 12 years have passed since someone wondered if it was ok to post a scan of it though it never came to pass.
I will post a scan of it and hope not to get sued…

We will however have to ignore the ‘contemporary’ markings some eejut made 40 years ago…
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 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Toastrack
User avatar
1024MAK
Posts: 3831
Joined: Mon Sep 26, 2011 10:56 am
Location: Looking forward to summer in Somerset, UK...

Re: Lardo buys another zeddy

Post by 1024MAK »

Oh dear, I knew this may happen if I bunged some money at Lardo by buying bits from him… :roll:
Moggy wrote: Fri Oct 08, 2021 3:26 pm Ram chips socketed so looks like it could be a kit build.
Also all the capacitors and resistors look very neat and tidy pointing to someone taking care and attention during construction.

Given the ZX80 books, maybe a ZX80 owner upgraded to a kit ZX81.

But more importantly, does it work?

Mark
Lardo Boffin
Posts: 1527
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

1024MAK wrote: Fri Oct 08, 2021 3:51 pm Oh dear, I knew this may happen if I bunged some money at Lardo by buying bits from him… :roll:
Moggy wrote: Fri Oct 08, 2021 3:26 pm Ram chips socketed so looks like it could be a kit build.
Also all the capacitors and resistors look very neat and tidy pointing to someone taking care and attention during construction.

Given the ZX80 books, maybe a ZX80 owner upgraded to a kit ZX81.

But more importantly, does it work?

Mark
The money from the keyboard covers went to Mrs B. :(

It does work, well, the K appears (very dark as expected). The keyboard is in need of trimming or replacing. Will test it properly later on.

To be honest I mostly bought it for the books. The idea being selling on the zeddy will pretty much cover the cost of all if it so some free books!
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 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Toastrack
Moggy
Posts: 2524
Joined: Wed Jun 18, 2008 2:00 pm

Re: Lardo buys another zeddy

Post by Moggy »

Given what's been posted over the years I think you are safe on that score Lardo.

Give us a shout if you want the later ROM should you not have it, or not as the case may be. Also if for your own use you fancy a crack at the Big Bang ROM I can send you an EPROM programmed with said doo-dah if you don't possess it already.
Lardo Boffin
Posts: 1527
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

Moggy wrote: Fri Oct 08, 2021 4:48 pm Given what's been posted over the years I think you are safe on that score Lardo.

Give us a shout if you want the later ROM should you not have it, or not as the case may be. Also if for your own use you fancy a crack at the Big Bang ROM I can send you an EPROM programmed with said doo-dah if you don't possess it already.
Thanks Moggy, greatly appreciated. I think I will most likely sell it as is, as it is an early bugged ROM and I don’t like messing around with them.

Quite a good picture considering!

4D77BF7E-EE60-416A-AEE4-1D9756E3CE19.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 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Toastrack
patters
Posts: 107
Joined: Thu Mar 11, 2021 12:34 pm

Re: Lardo buys another zeddy

Post by patters »

Where, if I may be so bold, does Lardo make his purchases? I'm after a wreck to salvage a ULA chip but even the worst condition 'can't test not sure if working' machines on eBay seem to go for £40 or so which is way too much considering a vLA81 can be had for about £25 when in stock.
Lardo Boffin
Posts: 1527
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

patters wrote: Wed Oct 13, 2021 8:48 pm Where, if I may be so bold, does Lardo make his purchases? I'm after a wreck to salvage a ULA chip but even the worst condition 'can't test not sure if working' machines on eBay seem to go for £40 or so which is way too much considering a vLA81 can be had for about £25 when in stock.
Ebay and a lot of patience. From time to time they come up as buy it now for £20 or so, but obviously they don’t hang around long. 8-)

Sometimes auctions are set to finish at a poor time so people forget to bid at the end so you get a bargain.

Recently though prices of these (and many other such computers) have done nothing but increase. Its not just people starting them high - I have seen some very dodgy ones go for frankly silly money at auction.
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 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Toastrack
Post Reply