3 ms·
There is a page on the pumps on the author's website (in french): http://paillard.claude.free.fr/triodes/pompes/pompes.html http://paillard.claude.free.fr/triod
by nbernard 8y ago
There is a page on the pumps on the author's website (in french):
http://paillard.claude.free.fr/triodes/pompes/pompes.html http://paillard.claude.free.fr/triodes/pompes/pompes.html
It seems he made all the specialized equipment he needed to make the tubes.