Quote:
Originally Posted by bandersen
Thank you for all the advice. I have also been looking around on eBay UK for a vintage 405 line test pattern generator without any luck.
I find that surprising given how common they are in the US. What did servicemen in the UK use back in the day for test patterns?
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In the 1950's and early 60's the test card/test pattern was on BBC TV for very long periods of time each day which assisted matters.
If you go to the World radio history site, find Practical Television magazine(later just Television) a very widely read magazine in the TV repair community. Search "pattern generator" in the 50's and 60's issues, lots of designs and circuits were around.
https://worldradiohistory.com/Practi...n_Magazine.htm