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Old 11-09-2018, 10:54 PM
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Penthode Penthode is offline
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Join Date: Jun 2009
Location: Kitchener/Waterloo Ontario Canada
Posts: 1,059
Here is a photo taken off a date code 1949 RCA 10BP4 (original) from my Canadian built RCA Victor 8T243. The KCS28 chassis employed 4 IF stages as all RCA Victor television did until they went cheap in 1953.

I realigned the tuner and video/audio IF in 2001 and this photo was taken from an analog over the air signal from KAET channel 8 Phoenix in 2005. The video bandwidth is full 4.0MHz and the picture benefits from a live KAET studio source. The camera was a Sony HDC900 HD camera rescaled from 1080i to 480i in the camera CCU. (I used to work at KAET).

Note the crisp detail: from the photo you can make out the hair strands and you can make out vestiges of color dot crawl making its way through due to the wide 4MHz luma channel bandwidth. The photo off the CRT did not do the television justice.

RCA and DuMont I think made the highest quality televisions in the late 40's and the high picture quality from these sets demonstrates that they can still display pictures well so long as the source is up to snuff.
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File Type: jpg KAET8.jpg (50.7 KB, 67 views)

Last edited by Penthode; 11-10-2018 at 01:39 AM.
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