Author Topic: Quantel DPB-7001 'Classic' Paintbox  (Read 2066 times)

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Offline dexters_lab

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Quantel DPB-7001 'Classic' Paintbox
« on: May 19, 2018, 07:52:42 am »
Looking into the hardware of the original DPB 'Classic' Paintbox, this is quite an amazing bit of hardware and i believe to be historically important both in the computing and tv history fields.

The DPB-7000/1 was the first 'paintbox', introduced at NAB in 1981 and cost £120,000 although it wasn't the first video painting system it was the most influential and a huge success for Quantel allowing artists to create TV graphics without the use of physical drawings, letraset and rostrum cameras it also allowed the editing of stills taken from existing video. When combined with the later systems like Encore, Mirage and Harry it formed a hugely powerful system able to perform multi-layer video compositing in the mid 1980s.

The paintbox system is a 7U rack unit containing connection ports and PSU in the rear and a bay of cards in the front. The system is controlled by a Motorola 68000 CPU with ROM and RAM spread across two computer cards. The software is contained in EPROM and has 512kb of working RAM. The remaining cards which are mostly based on 74x series logic, bit-slice processors along with a small number of programmable logic devices like PAL/GALs perform the painting operations, framestores, video input and output and disk interfacing etc. The two framestores contain nearly 4Mb RAM which for 1981 was a considerable amount! Video input and output is analog Composite PAL or RGB+Sync at full frame resolution (PAL 720*576)

Peripherals include a large drawing tablet with a wired pen, 8" floppy drive, 14" hard disk and a keyboard

Hopefully if the psu doesn't go bang on me, i'll be posting progress as i try and get some life out of this machine...

"A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." - Douglas Adams
https://www.youtube.com/user/DextersLab2013
http://dexterslab2013.blogspot.co.uk/
 
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Offline oPossum

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #1 on: February 21, 2019, 03:41:35 pm »
 
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Offline Zbig

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #2 on: February 22, 2019, 09:07:59 pm »


Urm, yeah, Mark/dexters_lab is the guy who was Retro Man Cave guy's host in that video... ;)
 

Offline oPossum

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #3 on: February 22, 2019, 09:45:07 pm »
Urm, yeah, Mark/dexters_lab is the guy who was Retro Man Cave guy's host in that video... ;)

Urm, yeah, that is why it is posted in this thread.
 

Offline Zbig

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #4 on: February 22, 2019, 09:54:38 pm »
Urm, yeah, that is why it is posted in this thread.

Ok, fair enough ;) It seemed as if you were providing OP another source of information on the subject. That's why it helps to put a word or two of context/explanation instead of just dropping a link :)
 

Offline oPossum

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #5 on: February 22, 2019, 10:14:11 pm »
I probably should have at least posted a brief explanation, such as "Dexter gets his 5 minutes of fame."

In my defense, forum policy seems to be:
  • Video must be posted without comment
  • Video must be at least 20 minutes long
  • Everyone is expected to watch the whole video before commenting
  • Comments should not reveal anything about the content of the video
 

Offline dexters_lab

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Re: Quantel DPB-7001 'Classic' Paintbox
« Reply #6 on: February 23, 2019, 08:41:24 am »
lol, video link posting etiquette aside...

it was really great making the video with Neil from RMC, there could be some interesting developments come from it!
"A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." - Douglas Adams
https://www.youtube.com/user/DextersLab2013
http://dexterslab2013.blogspot.co.uk/
 


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