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 Post subject: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Fri 02, 2018 11:15 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Woodinville, WA USA
Can anyone recommend a good quality HDMI-to-composite converter? My goal is to play video content (Netflix, etc.) on my iPhone and pipe the output to my Blonder-Tongue agile modulator to broadcast to vintage TVs in my house. I already have an Apple AV adapter that plugs into the phone's Lightning port and gives HDMI output.

Shopping around online, I see quite a few options, ranging in price from under $20 to a few hundred bucks. Has anyone tried one of these?

Thanks!

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 2:25 am 
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Location: Binghamton NY area
I use this HDMI2AV I picked up a couple off eBay for about $6 each. I feed a Roku into it as a source. They both work flawlessly.


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 2:29 am 
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Joined: May Sun 07, 2017 11:35 am
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I've used this one and it works well.

http://www.altronics.com.au/p/a3504a-hd ... converter/

You may be able to find the same model from a local source but Altronics does ship worldwide AFAIK

That looks like the same one, just seen it!


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 2:51 am 
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irob2345 wrote:
I've used this one and it works well.

http://www.altronics.com.au/p/a3504a-hd ... converter/

You may be able to find the same model from a local source but Altronics does ship worldwide AFAIK

That looks like the same one, just seen it!


WOW What a huge difference in price for the exact same unit. :shock:

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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 5:30 am 
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Joined: May Sun 07, 2017 11:35 am
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Yes I saw that.

However, by the time you take the 20% wholesale discount you get by registering, the exchange rate (AU$1 = US$0.68) and the shipping cost it works out not that much different for us here. Plus we get it the next day.


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 10:22 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Seattle, WA, USA
Last year I bought and tested every model I could find on the market today and I was dissatisfied with all of them. The problem is that none properly handled the 16x9 to 4x3 conversion. What I wanted was one that would center-cut the 16x9 image. However, I would have settled for a letter-box conversion (black bars on the top and bottom). None would do this. They all distorted the image by compressing it horizontally to fit.

-Matthew

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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sat 03, 2018 11:26 pm 
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Location: Woodinville, WA USA
Ugh, I hate those compressed pictures.

What about the more expensive models? I haven't looked at details, but perhaps they would offer more control than a basic converter?

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sun 04, 2018 1:57 am 
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7jp4-guy wrote:
Last year I bought and tested every model I could find on the market today and I was dissatisfied with all of them. The problem is that none properly handled the 16x9 to 4x3 conversion. What I wanted was one that would center-cut the 16x9 image. However, I would have settled for a letter-box conversion (black bars on the top and bottom). None would do this. They all distorted the image by compressing it horizontally to fit.

-Matthew

Using a Roku box as a source, I had no issue with that. I set the output of the Roku to 4X3. It seemed work fine.

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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sun 04, 2018 6:42 pm 
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7jp4-guy wrote:
Last year I bought and tested every model I could find on the market today and I was dissatisfied with all of them. The problem is that none properly handled the 16x9 to 4x3 conversion. What I wanted was one that would center-cut the 16x9 image. However, I would have settled for a letter-box conversion (black bars on the top and bottom). None would do this. They all distorted the image by compressing it horizontally to fit.

-Matthew

You could letter-box it yourself by mis-adjusting the height control. :) You could even add a switch and a resistor to make the height change easy!

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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Sun 04, 2018 10:28 pm 
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The advantage of Tom's pragmatic suggestion is you don't lose any resolution.....


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Mon 05, 2018 3:54 am 
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Location: Hayward, California USA
7jp4-guy wrote:
Last year I bought and tested every model I could find on the market today and I was dissatisfied with all of them. The problem is that none properly handled the 16x9 to 4x3 conversion. What I wanted was one that would center-cut the 16x9 image. However, I would have settled for a letter-box conversion (black bars on the top and bottom). None would do this. They all distorted the image by compressing it horizontally to fit.

-Matthew

If you set the source device to 480P or 480I resolution, you may/should also get an option in that device to choose between 4:3 and 16:9 aspect ratio; choose 4:3 and you should get a proper picture. In DVD players, these is/was also an option to choose between "4:3 letterbox" and "4:3 pan-and-scan"; look for that as well. All of these will be in the source device, none of the converters will have those options.

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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Tue 06, 2018 1:34 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 837
Location: Southwestern,Ontario Canada
What about one of these units ? I bought one off of E-bay for $15 ( looks like it was never used, & comes with a remote) and it has a ton of inputs and different formats. HDMI, USB, component , etc. I hooked it up to my predicta. Check out the video. Much better deal I think. IView- 3500 STB
https://www.youtube.com/watch?v=fhYgD3HOBkI
Tony


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 Post subject: Re: HDMI-to-composite converter for home broadcasting?
PostPosted: Feb Tue 06, 2018 3:33 am 
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Joined: Nov Mon 06, 2017 7:45 pm
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Location: Sherwood, Oregon
How about this $262.99 unit:
https://www.ebay.com/itm/Smartavi-V2V-HDAVS-HDMI-to-AV-Converter-Downscaler/201405972441?hash=item2ee4bb3fd9:g:pBkAAOSwu4BVyoA5
It better work for that price!


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