Re: Persistence seems lacking...

Graham, VE3GTC
 

making one own tubes is not easy but others have done so. A search of youtube will provides a few results - there was one French gentleman who had a farily long video describing his process and another that might have been multi part.

And transistors and IC's - that has been done too.

https://hackaday.com/2018/04/24/first-lithographically-produced-home-made-ic-announced/

https://hackaday.com/2010/05/13/transistor-fabrication-so-simple-a-child-can-do-it/

https://hackaday.com/2010/03/10/jeri-makes-integrated-circuits/

among a few (very few) others.  Indeed not so easy and perhaps not even very practical other than the "Look what I did" wow factor.

cheers, Graham ve3gtc

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