Thanks Redwire.
I am fortunate to have a brother who has a workshop where pack cups, medals, plaques, etc.. and where can I retrieve the remains of production and where can I access the machine to engrave aluminum.
For the rest just a bit of skill and imagination
I finally finished my PSU in version 5A.
I thank the community for suggestions and advice, especially Audioguru and Redwire that with their skill and patience have developed this project.
Greetings from Italy
I built the old version with TL081 long time ago and I update it without changing the PCB following these instructions, or is it better to redo the PCB with the new version?
Sorry for my imperfect English