I'm reading this: https://www.modmypi.com/blog/how-to-add-an-rca-tv-connector-to-a-raspberry-p... I cut one end off a generic yellow-tipped RCA wire and stripped back the insulation. Insider there's one insulated wire (yellow) and one bare copper wire. Which is the positive/negative? Rest assured, I'm experimenting on my own Pi, not the museum's. :) ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)(3) educational non-profit evan@vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
Center conductor is video. Shield is ground. Some would call it negative. Sent from Mail for Windows 10 From: Evan Koblentz via vcf-midatlantic Sent: Tuesday, August 22, 2017 12:18 AM To: vcf-midatlantic Cc: Evan Koblentz Subject: [vcf-midatlantic] OT: Pi RCA conversion I'm reading this: https://www.modmypi.com/blog/how-to-add-an-rca-tv-connector-to-a-raspberry-p... I cut one end off a generic yellow-tipped RCA wire and stripped back the insulation. Insider there's one insulated wire (yellow) and one bare copper wire. Which is the positive/negative? Rest assured, I'm experimenting on my own Pi, not the museum's. :) ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)(3) educational non-profit evan@vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
I'm reading this: https://www.modmypi.com/blog/how-to-add-an-rca-tv-connector-to-a-raspberry-p...
I cut one end off a generic yellow-tipped RCA wire and stripped back the insulation.
Insider there's one insulated wire (yellow) and one bare copper wire.
Which is the positive/negative?
Further research (aka Google) indicates the center insulated wire is positive and the outer bare wire is ground/negative. Someone stop me if that's wrong.
The center pin wire (white insulated) is the video signal the outer conductor (shield/bare wire) is the ground. Since a video signal is a complex high frequency AC Signal there is no positive or negative. A standard NTSC or EIA/RS-170 signal in consumer equipment in the US is 1V PP. Sent from my iPhone
On Aug 22, 2017, at 12:17 AM, Evan Koblentz via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
I'm reading this: https://www.modmypi.com/blog/how-to-add-an-rca-tv-connector-to-a-raspberry-p...
I cut one end off a generic yellow-tipped RCA wire and stripped back the insulation.
Insider there's one insulated wire (yellow) and one bare copper wire.
Which is the positive/negative?
Rest assured, I'm experimenting on my own Pi, not the museum's. :)
________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)(3) educational non-profit
evan@vcfed.org (646) 546-9999
www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation
The center pin wire (white insulated) is the video signal the outer conductor (shield/bare wire) is the ground.
Since a video signal is a complex high frequency AC Signal there is no positive or negative. A standard NTSC or EIA/RS-170 signal in consumer equipment in the US is 1V PP.
Okay. The picture in the link I posted shows the pin labeled TV reversed from the Pi in front of me. Anyhow, it seems pretty clear that video signal wire goes to the TV pin and the ground goes to its neighbor. I'll give this a try.
participants (3)
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Evan Koblentz -
Matt Patoray -
William Dromgoole