A poorly Zeddy

General Chit Chat about Sinclair Computers and their Clones
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1024MAK
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Re: A poorly Zeddy

Post by 1024MAK » Tue Sep 26, 2017 3:39 pm

A new control system for a pizza oven so that you can have hot pizza when you get home?

Mark

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1024MAK
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Re: A poorly Zeddy

Post by 1024MAK » Tue Sep 26, 2017 3:41 pm

:arrow: Ahh, got it! :D

It's part of a module to help with the repair of this :mrgreen:

Mark

Moggy
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Re: A poorly Zeddy

Post by Moggy » Tue Sep 26, 2017 4:23 pm

No it's the kludge fix for his UDG board which could only manage to display 127.9342876 out of 128 UDG's. :lol:
(apologies to the Pentium floating point unit design team)

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PokeMon
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Re: A poorly Zeddy

Post by PokeMon » Tue Sep 26, 2017 4:51 pm

Maybe a Trump card ? :mrgreen:

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Andy Rea
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Re: A poorly Zeddy

Post by Andy Rea » Tue Sep 26, 2017 5:51 pm

LOL i've had a good laugh at some of those suggestions,,, @mark "ah, so you're a waffle man."

@siggi i had a thought that maybe an arduino or perhaps something a little faster pic32 maybe could sit and watch the addrress and data lines purely passively and then output the result on an coloured lcd...

regards Andy
6 x ZX81, 1 x TS1500 , 1 x +3e, 1 x timex 2040 printer, 1 x timex 2020 cassette deck, siclair printer and some spectrum

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gammaray
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Re: A poorly Zeddy

Post by gammaray » Tue Sep 26, 2017 10:37 pm

This thread seems like two threads in one given the two different images. An unpopulated board and another one called the "Sincluster ZX81ish" but...

I'Il pick this one
IMG_4048.jpg
IMG_4048.jpg (4.92 MiB) Viewed 216 times

At the risk of sounding stupid (again) this one runs a ROM image from an SDCARD! But only with the approval of the thumbscanning coder in the upper left allows it to boot.

The first ZXPAND?
Finish what you start. Truth is over the mountaintop or six feet under.
4 x TS1000, 2 x TS1500 , 2 x timex 2040 printer, 1/2 x timex 2020 cassette deck, ZXPAND, ZeddyNET, ZXBlast..., unfinished Spectrum...

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mrtinb
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Re: A poorly Zeddy

Post by mrtinb » Wed Sep 27, 2017 5:57 am

Andy Rea wrote:
Mon Sep 25, 2017 9:33 pm
not much progress but it hasn't been forgotten...
Image

can you tell what it is yet ?
To me it seems the bottom pcb is missing alle the capacitors, diodes etc. Strange?
Martin
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube

Moggy
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Re: A poorly Zeddy

Post by Moggy » Wed Sep 27, 2017 11:27 am

gammaray wrote:
Tue Sep 26, 2017 10:37 pm
This thread seems like two threads in one given the two different images. An unpopulated board and another one called the "Sincluster ZX81ish" but...

I'Il pick this one

IMG_4048.jpg

At the risk of sounding stupid (again) this one runs a ROM image from an SDCARD! But only with the approval of the thumbscanning coder in the upper left allows it to boot.

The first ZXPAND?
No the first Xpand was a piece of Vero board stuffed into a Sinclair ram pack casing about a decade ago shame that the pictures are lost though.

Some interesting reading on this,now defunct, Zx81/TS1000 forum that was ran by New Yorker Bill H..

http://forum.tlienhard.com/TS1000/www.t ... 902112.htm


Moggy(Tabbycat)

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Andy Rea
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Re: A poorly Zeddy

Post by Andy Rea » Wed Sep 27, 2017 10:42 pm

ah i miss the old ts1000 site, was a good one...

@martin, most of the passives have been mounted on the back side of teh board, see the images in the earlier posts

Andy
6 x ZX81, 1 x TS1500 , 1 x +3e, 1 x timex 2040 printer, 1 x timex 2020 cassette deck, siclair printer and some spectrum

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gammaray
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Re: A poorly Zeddy

Post by gammaray » Thu Sep 28, 2017 12:10 am

I have given it some thought and it is an internal UDG and ram upgrade probably 32K with 8k in the 8-16k range.

Where is my cookie?

^No NO NO! It's his under-the-hood ULA replacement!
Finish what you start. Truth is over the mountaintop or six feet under.
4 x TS1000, 2 x TS1500 , 2 x timex 2040 printer, 1/2 x timex 2020 cassette deck, ZXPAND, ZeddyNET, ZXBlast..., unfinished Spectrum...

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