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by carlsson
Tue Jun 27, 2017 9:57 am
Forum: Other VTech systems
Topic: Great TMS Video Chip Demo
Replies: 7
Views: 1640

Re: Great TMS Video Chip Demo

True, we have discussed that before and the likelyhood that one and the same manufacturer - whoever it was - had several reference designs based on the TI custom chipset but with different CPUs attached to it, of which Coleco went with the Z80 design and the 6502 design was left for VTech to acquire...
by carlsson
Mon Jun 26, 2017 10:34 pm
Forum: Other VTech systems
Topic: Great TMS Video Chip Demo
Replies: 7
Views: 1640

Re: Great TMS Video Chip Demo

Regarding the VDP, I read the other day that supposedly it was designed by Milton Bradley (the toy/game company) to be used in a 16-bit video game manufactured by Texas Instruments. It is not clear what is fact and what is fiction, but the gospel is that TI said "fool you!" to MB, grabbed ...
by carlsson
Wed Apr 05, 2017 8:54 am
Forum: Hardware
Topic: How to build a creatiVision power supply
Replies: 41
Views: 17444

Re: How to build a creatiVision power supply

Sad to say, that spare 1541 floppy drive has been resting in its plastic bag for over 1.5 years. In theory I think it will work to reuse the transformer part of its power supply, as it should both have the windings at the right voltages, and designed to handle the required loads of current. Someone ...
by carlsson
Tue Feb 14, 2017 1:16 pm
Forum: General CreatiVision forum
Topic: Creative Computing on CreatiVision
Replies: 13
Views: 6570

Re: Creative Computing on CreatiVision

Great news! In case I come across more references, I'll post them here. Last year I went through a number of Japanese computer magazines I/O which also had a gaming oriented publication, but so far I can't recall seeing anything about the Cheryco release. It also makes me wonder if Sanyo Video in Ge...
by carlsson
Mon Jan 30, 2017 10:18 am
Forum: Other VTech systems
Topic: Great TMS Video Chip Demo
Replies: 7
Views: 1640

Re: Great TMS Video Chip Demo

Although it is not a VTech system, yesterday a new, very nice mega demo was released for the expanded TI-99/4A: https://www.youtube.com/watch?v=ZhSUhE03XFw http://www.pouet.net/prod.php?which=68783 As you know, it has the same VDP and PSG as the Creativision, but instead of a 2 MHz 6502 or 3.5 MHz Z...
by carlsson
Tue Jan 17, 2017 9:37 am
Forum: General CreatiVision forum
Topic: Creative Computing on CreatiVision
Replies: 13
Views: 6570

Re: Creative Computing on CreatiVision

By the way, the reference in January 1984 to the mid-range Laser 2001 which is able to run ColecoVision software (sic!) is present here. No picture of that computer though, but a picture of the Laser 3000 on the previous page. While I'm willing to accept that neither the CreatiVision nor the 2001 we...
by carlsson
Mon Jan 16, 2017 3:02 pm
Forum: Other VTech systems
Topic: Salora Fellow printer
Replies: 3
Views: 765

Re: Salora Fellow printer

See also the back side of the Laser 2001 box. :) Of course VTech may have manufactured several different plotters with the same look, if those connect directly to the expansion bus. I never quite figured out if the 200/300, 350/500/700 and the 2001 have different kind of expansion buses and pinouts....
by carlsson
Mon Jan 16, 2017 1:17 pm
Forum: Other VTech systems
Topic: Salora Fellow printer
Replies: 3
Views: 765

Re: Salora Fellow printer

It looks very much the same as the VTech Laser PP-40, but with different coloured case of course. That one seems to have been used even with the Laser 128, probably depending on the interface you need between the computer and plotter. http://www.trhonline.com/obscure/l128a.htm According to this page...
by carlsson
Thu Sep 08, 2016 1:38 pm
Forum: Other VTech systems
Topic: Great TMS Video Chip Demo
Replies: 7
Views: 1640

Re: Great TMS Video Chip Demo

It requires a 64K cartridge, just like their previous demos. Actually besides MSX, there doesn't seem to be a lot of demo scene going on for the VDP chips. The ColecoVision and ADAM people mainly program games. The TI-99/4(A) people do too, although there was a bit of discussion a while ago about ma...
by carlsson
Thu Jun 16, 2016 10:06 pm
Forum: General CreatiVision forum
Topic: Where could you buy a Creativision?
Replies: 22
Views: 13954

Re: Where could you buy a Creativision?

Tonight I made a small discovery, while testing this latest Creativision system our association bought from a member's friend. The system boots OK but the left controller is entirely dead. It looks like the cable has been repaired and one wire is broken. I will measure for continuity on all the othe...

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