Lardo buys another zeddy

ZX80 / ZX81 hardware and software offered for sale or swapping
User avatar
XavSnap
Posts: 1940
Joined: Sat May 10, 2008 4:23 pm
Location: 'Zx81 France' Fb group.

Re: Lardo buys another zeddy

Post by XavSnap »

Hi Lardo,
D726EF46-3B4E-4B0B-AD5A-7F76DA688614[1].jpg
D726EF46-3B4E-4B0B-AD5A-7F76DA688614[1].jpg (36.64 KiB) Viewed 15535 times
"JRS" ?
What's daaaat?
Xavier ...on the Facebook groupe : "Zx81 France"(fr)
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

XavSnap wrote: Thu Sep 19, 2019 10:22 am Hi Lardo,

D726EF46-3B4E-4B0B-AD5A-7F76DA688614[1].jpg

"JRS" ?
What's daaaat?
I had never heard of them before either. It is a 16K RAM pack (http://www.zx81stuff.org.uk/zx81/hardware/JRS16K and http://www.zx81stuff.org.uk/zx81/hardwa ... 800054.jpg) . It also came with the instructions and the pack in game Alien Attack. I need to get round to testing the game but I think the RAM is ok.
Attachments
503A6686-68F9-4522-89BA-3D020E018F5E.jpeg
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
User avatar
1024MAK
Posts: 5101
Joined: Mon Sep 26, 2011 10:56 am
Location: Looking forward to summer in Somerset, UK...

Re: Lardo buys another zeddy

Post by 1024MAK »

For U.K. subjects only: oh, look at how many U.S. dollars there were to Sterling back then... :(

Back to the subject, have you peeked ( :lol: ) inside :?: If yes, does it use 4116 (or equivalent) DRAM chips? And can you post photos :mrgreen:
Note I suspect there are four screws and two are hidden under the label. If it’s working, and/or you don’t want to disturb the label, don’t worry about my curiosity, I’m fine if you want to leave it undisturbed.

Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp

:!: Standby alert :!:
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb :!:
Looking forward to summer later in the year.
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

1024MAK wrote: Thu Sep 19, 2019 3:40 pm For U.K. subjects only: oh, look at how many U.S. dollars there were to Sterling back then... :(

Back to the subject, have you peeked ( :lol: ) inside :?: If yes, does it use 4116 (or equivalent) DRAM chips? And can you post photos :mrgreen:
Note I suspect there are four screws and two are hidden under the label. If it’s working, and/or you don’t want to disturb the label, don’t worry about my curiosity, I’m fine if you want to leave it undisturbed.

Mark
Back in the days of nearly 2:1. A long time ago.

It is indeed working (has happily run The Gauntlet for a couple of hours now) and I suspect you are right about two screws under the label. Removing the lower two did not allow me to open it.
Even the tape loaded and ran Alien Attack!

71464481-2963-4045-9239-8C9791EF6F27.jpeg
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
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

Just realised I never added a photo of the inside of the second zeddy.

3227F591-84AD-4D9D-961C-A8D04628C2E4.jpeg
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
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

Just in case things get difficult after October. :D

8243CEEC-C9DF-48C1-85EC-C3FE9E206F1A.jpeg
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
Moggy
Posts: 3231
Joined: Wed Jun 18, 2008 2:00 pm

Re: Lardo buys another zeddy

Post by Moggy »

Alternative thread title...

Lardo opens a new assembly line.

(Sorry just had to)

Good to know that freshly refurbished zeddies will find their way, possibly to a new generation of 8-bit users. :D
User avatar
1024MAK
Posts: 5101
Joined: Mon Sep 26, 2011 10:56 am
Location: Looking forward to summer in Somerset, UK...

Re: Lardo buys another zeddy

Post by 1024MAK »

Lardo Boffin wrote: Tue Oct 08, 2019 4:37 pm Just in case things get difficult after October. :D
:shock: No wonder Karl has little free time now...

Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp

:!: Standby alert :!:
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb :!:
Looking forward to summer later in the year.
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

Moggy wrote: Tue Oct 08, 2019 5:22 pm Alternative thread title...

Lardo opens a new assembly line.

(Sorry just had to)

Good to know that freshly refurbished zeddies will find their way, possibly to a new generation of 8-bit users. :D
I already have homes for three of these so maybe should have bought more.... :roll:
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
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: Lardo buys another zeddy

Post by Lardo Boffin »

A beautiful condition, boxed and working zeddie. Although I have not tested the PSU yet.

33EEBEB1-C823-44E4-B097-AD52A2D7E61D.jpeg
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
Post Reply