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Author Topic: Amiga RGB to YPrPb - where can I get it?  (Read 2273 times)

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Offline kreciuTopic starter

Amiga RGB to YPrPb - where can I get it?
« on: June 24, 2016, 06:49:11 PM »
Can some one tell me where I can get Amiga RGB to YPrPb converter?

OR how to make it? :)

Something like this:

http://www.vintageisthenewold.com/amiga-rgb-yprpb-converter/

Thank you!
Re-A1200inE/BOX/3.2/AmigaOS3.2/TF1260@66Mhz/256Mb/MediatorTX/R9200SE/SpiderUSB/LAN/SB128/16Gb-CF/DVD-ROM/FDD-HD
 

Offline Lord Aga

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #1 on: June 25, 2016, 10:48:41 AM »
http://www.ebay.com/itm/NEW-SCART-RGB-to-YUV-Component-Video-Converter-Scaler-/221156873851

Since I was planing to buy it, I would love to hear your experience first :)
Glory to the loud-mouthed Scotsman !
 

Offline kreciuTopic starter

Re: Amiga RGB to YPrPb - where can I get it?
« Reply #2 on: June 25, 2016, 11:58:54 AM »
No, this is not what I'm looking for. I'm looking for AMIGA RGB to component. It is like nobody makes them... there is only AMIGA RGB to SCART (I can use SCART).

I'm using currently s-video + cheapo scandoubler ($10) from ebay.com and for games on LCD is quite good, but workbench looks BAD (text mainly).
« Last Edit: June 25, 2016, 12:03:14 PM by kreciu »
Re-A1200inE/BOX/3.2/AmigaOS3.2/TF1260@66Mhz/256Mb/MediatorTX/R9200SE/SpiderUSB/LAN/SB128/16Gb-CF/DVD-ROM/FDD-HD
 

Offline Lord Aga

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #3 on: June 25, 2016, 12:37:55 PM »
It actually is. But you need another "middle man". And that is a common Amiga RGB to SCART cable. Plug the SCART end into this gizmo and you get a component output.

I know you would prefer a direct Amiga RGB to component output. So would I. But it seems that this is our only choice.

Are you (or anyone watching this) registered at that German forum64.de ? They have schematics attached in one of the posts. But I can't get to them.
Glory to the loud-mouthed Scotsman !
 

Offline mindprober

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #4 on: June 25, 2016, 03:03:16 PM »
 

Offline hirschma

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #5 on: June 25, 2016, 03:41:50 PM »
Wow, a version without connectors would cost just a few bucks to make up. Pretty simple design.
 

Offline mongo

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #6 on: June 25, 2016, 07:29:41 PM »
Quote from: jdryyz;810342
http://gglabs.us/node/983


One problem with that design. Pin 21 on the video port is not -5v on all Amigas.
 

Offline hirschma

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #7 on: June 25, 2016, 09:31:17 PM »
Quote from: mongo;810349
One problem with that design. Pin 21 on the video port is not -5v on all Amigas.


Not sure that I'm qualified to say, but it doesn't appear that -5V is actually required for that circuit to work. Perhaps someone that has actual EE chops can say.
 

Offline mongo

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #8 on: June 25, 2016, 10:52:38 PM »
Quote from: hirschma;810352
Not sure that I'm qualified to say, but it doesn't appear that -5V is actually required for that circuit to work. Perhaps someone that has actual EE chops can say.


The OP amps use +5 and -5 volts.
 

Offline kreciuTopic starter

Re: Amiga RGB to YPrPb - where can I get it?
« Reply #9 on: June 26, 2016, 01:05:12 PM »
Quote from: jdryyz;810342
http://gglabs.us/node/983


Thank you!
Re-A1200inE/BOX/3.2/AmigaOS3.2/TF1260@66Mhz/256Mb/MediatorTX/R9200SE/SpiderUSB/LAN/SB128/16Gb-CF/DVD-ROM/FDD-HD
 

Offline kreciuTopic starter

Re: Amiga RGB to YPrPb - where can I get it?
« Reply #10 on: June 26, 2016, 01:10:54 PM »
There are composite to HDMI and SCART to HDMI "scandoublers". I wish Amigakit.com would carry them as a cheap solution vs. internal scandoublers (even S-video solution would be nice to see, they are like $10 and works quite good).

Quality of Amiga RGB output is really, really nice and for games or some WB work would be sufficient. Not everybody need $140 dollars scandoubler (it is GREAT peace of hardware and quality is outstanding, no discussion here), especially new users.
« Last Edit: June 26, 2016, 01:22:26 PM by kreciu »
Re-A1200inE/BOX/3.2/AmigaOS3.2/TF1260@66Mhz/256Mb/MediatorTX/R9200SE/SpiderUSB/LAN/SB128/16Gb-CF/DVD-ROM/FDD-HD
 

Offline hirschma

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #11 on: June 27, 2016, 04:34:16 PM »
Quote from: mongo;810354
The OP amps use +5 and -5 volts.


Hmm, not saying that you're incorrect, but where on the schematic is that shown? Totally not seeing any connection from -5V or VEE to any opamp.
 

Offline mongo

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Re: Amiga RGB to YPrPb - where can I get it?
« Reply #12 on: June 28, 2016, 12:05:22 AM »
Quote from: hirschma;810387
Hmm, not saying that you're incorrect, but where on the schematic is that shown? Totally not seeing any connection from -5V or VEE to any opamp.


The power connections for the OP amps aren't shown on the schematic.

http://www.ti.com/lit/ds/symlink/lm6172.pdf

Pin 8 is V+ and pin 4 is V-.