Here in Europe less problems with copy rights. Everything from most European manufacturers can be found freely on the internet. The service manuals were also included with the purchase of a television.
I now use Beitman's service manual from 1951. Model 9120 is very similar. Now this TV works better and better after replacing the paper capacitors.
Another question about copyrights, are Youtube videos with music made in Europe also visible in the USA? here in Europe few problems with copyrights where music appears, but advertising is visible where the rights are paid for.
Here's a link to a video of mine with music by Ricky Nelson. I would like to know if this is visible in the USA? Then I have to start making my videos with old TVs without music.
https://www.youtube.com/watch?v=VACnRZM9Gs8