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I had a 1980s Philips/Magnavox that I noticed used an electronic power supply taken right out of a Motorola applications book! Did Thompson also allow such free reign/plagiarism in their U.S. designs?
I am sure IC suppliers do not mind if you copy their circuit. If you are using and buying their ICs. ALmost always the application or reference design isn't close enough to steal but can give you an idea on how it works. I usually used more generic ICs and discrete transistors.
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