Kludge fix ZX81 up for adoption!
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Kludge fix ZX81 up for adoption!
I recently bought what turned out to be a kludge fix ZX81 (viewtopic.php?f=7&t=2153&start=150#p26265).
If anyone wants it pm me for more details - it's the unit only for £25 including p&p.
I normally refurb zeddys I buy and put them on eBay but don't want to touch this one as it is a bit of a special one.
It's only been superficially tested - with the plugged in keyboard I got all letters to work and tried a small program. The output is as expected for one of these - dark!
Lardo
If anyone wants it pm me for more details - it's the unit only for £25 including p&p.
I normally refurb zeddys I buy and put them on eBay but don't want to touch this one as it is a bit of a special one.
It's only been superficially tested - with the plugged in keyboard I got all letters to work and tried a small program. The output is as expected for one of these - dark!
Lardo
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: 2256
- Joined: Sat Nov 26, 2016 2:42 am
Re: Kludge fix ZX81 up for adoption!
Hello all
Thought I would post some pics in case anyone is interested. The manual is included (put 'unit only' earlier - not sure why...), it's a first edition. The back cover is a bit yellowed. I will check each page at some point - certainly before passing it on.
Lardo
Thought I would post some pics in case anyone is interested. The manual is included (put 'unit only' earlier - not sure why...), it's a first edition. The back cover is a bit yellowed. I will check each page at some point - certainly before passing it on.
Lardo
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
- 1024MAK
- Posts: 5531
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
- Contact:
Re: Kludge fix ZX81 up for adoption!
Well, if you insist on wetting my appetite by including more bits, I may be tempted to bite instead of passing it...
Not ready to quite accept any parcels this week, as there is a row of four parcels still awaiting unwrapping that I have not found time to look at yet...
Wait for the bombardment of photos across three forums this week... (as there are some smaller items that did get a visit from the cutting knife
).
In your Zeddy travels, do you have any non-working boards that just don't want to be fixed?
Mark


Not ready to quite accept any parcels this week, as there is a row of four parcels still awaiting unwrapping that I have not found time to look at yet...


Wait for the bombardment of photos across three forums this week... (as there are some smaller items that did get a visit from the cutting knife

In your Zeddy travels, do you have any non-working boards that just don't want to be fixed?
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert 
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Spring approaching...
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp


There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb

Spring approaching...
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- Posts: 2256
- Joined: Sat Nov 26, 2016 2:42 am
Re: Kludge fix ZX81 up for adoption!
I have two broken zeddys but both are just waiting on ULAs. So far I've not had any zeddys that are difficult to fix (the sparkly pixel one aside)! Resilient little things.1024MAK wrote: ↑Mon Jul 31, 2017 3:45 pm Well, if you insist on wetting my appetite by including more bits, I may be tempted to bite instead of passing it...![]()
![]()
Not ready to quite accept any parcels this week, as there is a row of four parcels still awaiting unwrapping that I have not found time to look at yet...![]()
![]()
Wait for the bombardment of photos across three forums this week... (as there are some smaller items that did get a visit from the cutting knife).
In your Zeddy travels, do you have any non-working boards that just don't want to be fixed?
Mark
If more bits are of interest there is still an unclaimed cassette cable (unopened) from this post:-
viewtopic.php?f=8&t=2431
I'm also sure I can chuck in an age appropriate RF cable as well - last count I had about 10 of them lying around...
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
-
- Posts: 2256
- Joined: Sat Nov 26, 2016 2:42 am
Re: Kludge fix ZX81 up for adoption!
It's alive!
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
-
- Posts: 2256
- Joined: Sat Nov 26, 2016 2:42 am
Re: Kludge fix ZX81 up for adoption!
Finally...
These cables came with a recent zeddy - not sure they are anything to do with zeddys! Also free to a good home (p&p aside if not take with the kludge fix).
These cables came with a recent zeddy - not sure they are anything to do with zeddys! Also free to a good home (p&p aside if not take with the kludge fix).
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
- 1024MAK
- Posts: 5531
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
- Contact:
Re: Kludge fix ZX81 up for adoption!
Just be aware that RF cables are routinely sacrificed when they stray too close to my workshop...
They get castrated and get transformed into composite phono - phono cables
Mark
They get castrated and get transformed into composite phono - phono cables

Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert 
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Spring approaching...
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp


There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb

Spring approaching...
-
- Posts: 2256
- Joined: Sat Nov 26, 2016 2:42 am
Re: Kludge fix ZX81 up for adoption!
This has now been adopted. 

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