Jupiter ACE (again)

General Chit Chat about Sinclair Computers and their Clones
Moggy
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Re: Jupiter ACE (again)

Post by Moggy » Fri Sep 21, 2018 2:38 pm

Lardo Boffin wrote:
Fri Sep 21, 2018 2:25 pm
I found with the ZX81 and a ZX8-CCB there is variance in results from one TV to the next.
I have a normal resolution old LCD TV that easily produces a perfect picture, an old glass screen TV that normally does, a 37” Sony Bravia that is either perfect or awful and a small LG which is extremely picky.
A picture that is perfect on the other three may be flickery and often has colours showing on the LG. Some zeddys I have never been able to get right on this telly.

You can’t please all of the TVs all of the time!

Agree about the LG's, I have two that are bloody fussy as well. :lol:

McKlaud
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Re: Jupiter ACE (again)

Post by McKlaud » Fri Sep 21, 2018 10:58 pm

Just played with my Jupiter for a while and no success with composite signal on my Sony TV set. I've tried a various techniques to make the CVBS signal like in the textbooks but my TV ignores it. I can see a very nice and crisp image on my 32" LCD TV and on a very cheap 4.3" LCD from China. So, there is no point for "the Holy Grail quest". Mission accomplished. :geek:
Claudius
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McKlaud
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Re: Jupiter ACE (again)

Post by McKlaud » Wed Oct 24, 2018 6:31 pm

One thing worth mentioning. I’ve made the twister board for ZX81 RAM packs and printers. Myreplica works fine with the Sinclair’s backpack. :)
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Claudius
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RWAP
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Re: Jupiter ACE (again)

Post by RWAP » Wed Oct 24, 2018 7:59 pm

Excellent - do you plan on offering these for sale?

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mrtinb
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Re: Jupiter ACE (again)

Post by mrtinb » Wed Oct 24, 2018 8:02 pm

What is the twister board?
Martin
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube

McKlaud
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Re: Jupiter ACE (again)

Post by McKlaud » Wed Oct 24, 2018 8:38 pm

RWAP wrote:
Wed Oct 24, 2018 7:59 pm
Excellent - do you plan on offering these for sale?
To be honest I've been thinking about a small batch that would include following items:
1. Jupiter ACE replica PCB
2. 96K RAMpack PCB
3. Twister Board PCB
4. Keyboard Overlay
5. RF modulator replacement

But the set would be in range of 30-35GBP + P&P. So, I've not decided yet.

Martin: The Twister is a small board that allows to connect to JACE interfaces designed for ZX81. In the past it was called "Trumpcard". See there: https://k1.spdns.de/Vintage/Sinclair/80 ... novonics)/
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msch
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Re: Jupiter ACE (again)

Post by msch » Thu Oct 25, 2018 12:13 pm

cool stuff!
I am interested to buy the 96K RAMpack PCB and the Twister Board PCB - preferably with parts ;)
Mathias

ZX-Team, classic computer collector

brozier
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Re: Jupiter ACE (again)

Post by brozier » Mon Oct 29, 2018 11:37 am

McKlaud wrote:
Wed Oct 24, 2018 8:38 pm

But the set would be in range of 30-35GBP + P&P. So, I've not decided yet.
I'd be interested in a set of boards :-)

Julia

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gammaray
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Re: Jupiter ACE (again)

Post by gammaray » Wed Oct 31, 2018 9:26 pm

Oh hell! I'm in too.

But you have to throw in a case too! Maybe one of these would work.
computer case.jpg
computer case.jpg (14.08 KiB) Viewed 1651 times
5-TS1000,UK ZX81<-Sheelagh, US ZX81, 2-TS1500/KDLX , 3-TS2040 printer, 2-TS2020 cassette decks, ZXPAND+AY, ZeddyNET, ZXBlast, UDG, ZX8CCB, AERCO, BUILDS/REPAIRS ZX Spectrum, ZX80 Minstrel, ZXMAX48 v1 v2, 2-TS-2068, ROM, 16kRAM

McKlaud
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Re: Jupiter ACE (again)

Post by McKlaud » Wed Oct 31, 2018 9:52 pm

Well, the case for the RAMpack almost finished. :geek:
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