RGB to PAL converter

RGB to PAL converter

Post by Steve Mars » Thu, 07 Apr 2005 04:51:45


Someone has just sent me a picture of an RGB to PAL converter for the Oric.
It has the Oric logo and looks like you feed the Oric power into it and then
use a lead from it into the Oric.

I've not seen one before. Has anyone else ?

Steve M
 
 
 

RGB to PAL converter

Post by bob » Sun, 10 Apr 2005 23:24:35

in article 4252ebc3$0$42322$ XXXX@XXXXX.COM , Steve
Marshall at XXXX@XXXXX.COM wrote on 5/4/05 20:51:


I don't get it ? Why would you need a RGB to PAL convertor for the Oric ? It
already has a PAL tv out ? Or am I missing something.

 
 
 

RGB to PAL converter

Post by mjb » Tue, 12 Apr 2005 07:24:37


No, Oric has a *UHF* PAL output. I'm guessing that this unit provides a PAL
Colour Composite (1V p-p) output ready to drive a colour monitor. Not a TV.

RGB into Composite Black/White is the old 4 resistors trick that's been
around since Oric Owner days. Colour is harder, hence the box.

You could tap off the colour composite signal at the *input* to the UHF
modulator, and get the same effect ... no box needed.

--
--------------------------------------+------------------------------------
Mike Brown: mjb[at]pootle.demon.co.uk | http://www.yqcomputer.com/
 
 
 

RGB to PAL converter

Post by Steve Mars » Tue, 12 Apr 2005 07:52:32


"bob" < XXXX@XXXXX.COM > wrote
It

That's the curious thing !
I guessed it was because the Oric TV output tended to be pretty poor that
they used the a signal from the RGB to get a decent picture.
Maybe it was a device that already existed for another machine and they just
altered it slightly for Oric in the hope of selling some more. I don't know
.

If anyone wants to see a picture email me and I'll send one.
48katmos <at> freeuk <dot> com



Steve M
 
 
 

RGB to PAL converter

Post by bob » Tue, 12 Apr 2005 10:10:11

in article 4259ad9c$0$63425$ XXXX@XXXXX.COM , Steve
Marshall at XXXX@XXXXX.COM wrote on 10/4/05 23:52:



Maybe it was for non Pal orics ? (was there such a thing ? ) or maybe a
future model of the Atmos line that was to use only RGB out to a monitor and
the conversion box was an add on for people with out an RGB monitor

Just a thought




Bob
Somewhere in Scotland
Visit (Coming Soon) for all your Retro needs :)
--
Replies to Newsgroup only!
 
 
 

RGB to PAL converter

Post by Euphori » Tue, 12 Apr 2005 21:42:21


"bob" < XXXX@XXXXX.COM > a rit dans le message de


It's not the same thing...
The TV output of the Oric connects to the antenna input of your TV.
A PAL converter produces the same composite signal as most analog camcorders,
some TVs have a cinch entry for it, the others have the composite entry inside
the SCART/Peritel plug.

Cheers,

Fabrice
 
 
 

RGB to PAL converter

Post by bob » Wed, 13 Apr 2005 01:29:09

in article 425a70ae$0$867$ XXXX@XXXXX.COM , Euphoric at
XXXX@XXXXX.COM wrote on 11/4/05 13:42:




Ah so its just a composite breakout box from the RGB to a normal phono type
composite connector ?

Problem solved then :)
 
 
 

RGB to PAL converter

Post by Steve Mars » Wed, 13 Apr 2005 07:34:17


"bob" < XXXX@XXXXX.COM > wrote

type

Hmmm. Doesn't the usual composite connection give a mono output ?


Steve M
 
 
 

RGB to PAL converter

Post by bob » Wed, 13 Apr 2005 16:14:22

in article 425afad4$0$94527$ XXXX@XXXXX.COM , Steve
Marshall at XXXX@XXXXX.COM wrote on 11/4/05 23:34:


I think they give color as well. Its the standard red white and yellow type
connectors that you see on most tv's the yellow being the composit (red and
white the left and right audio channels) But I'm sure you know that ?

Regards




Bob
Somewhere in Scotland
Visit (Coming Soon) for all your Retro needs :)
--
Replies to Newsgroup only!
 
 
 

RGB to PAL converter

Post by Steve Mars » Sat, 16 Apr 2005 07:47:57


"bob" < XXXX@XXXXX.COM > wrote
type
and

The owner has had a look and done some testing. He says this.

The converter's internals revealed a (minimum) 12VDC power requirement. What
I found
intriguing is the power out lead provided a regulated 5VDC...to/for what? In
anycase I got
the ORIC, converter and TV powered up and fed the converters output into the
TV video
input - no cigar. After some fiddling and tweaking it became apparent that
the converter
churned out a regular UHF PAL signal fit for the TV's RF/Antenna input! It
apparently
produced a cleaner signal/image but I didn't run any extensive tests like
color games etc.


Steve M
 
 
 

RGB to PAL converter

Post by bob » Sat, 16 Apr 2005 10:13:44

in article 425ef285$0$543$ XXXX@XXXXX.COM , Steve
Marshall at XXXX@XXXXX.COM wrote on 14/4/05 23:47:




That's weird!! Is it an official oric product ?




Bob
Somewhere in Scotland
Visit (Coming Soon) for all your Retro needs :)
--
Replies to Newsgroup only!