Which is the oldest TV set constructed in module technology?

[Josef]

Your input is very appreciated because I have a set from early 1958 on my working bench and I'm writing an article about it for a local magazine here in Austria.
The company promoted it as the very first module TV set.
Please let me know if this might be true or not

Thank you in progress!

[Electronic M]

Satchel Carlson was doing modular tube chassis (they called unit-ized) in the late 1940s then they started making TVs.
As I understand it they optimized their factory for small radio chassis during WWII, and found it was cheaper to assemble their TVs from small replaceable modules than retool their plant to handle large chassis. It also worked as a servicing aid and sales tool. Customers liked that the shop could just drop in a new circuit module in 5 minutes and recondition the bad one at the shop.

Philco did something similar with their split chassis keeping the sweep separate from the RF/IF/audio/video and standardizing the interface from the late 40s to the mid 50s so you could replace half the set quickly and recondition the half you replaced back at the shop.

[Kevin Kuehn]

Here's my thread on a Setchell Carlson Model 15 I discovered a few years ago. It's likely a late 1949 model and using a 12LP4 CRT. As far as we know this was their earliest entry into TV.

http://videokarma.org/showthread.php...rlson+model+15

[Josef]

Ok great. Thank you for your input which will help a lot writing an decent article