Ever wondered what was inside a power valve?

Misterg

I liked this. It helps if you can mentally substitute "valve" for "toob":



 

HHwarner

Heres an interesting film from the Mullard factory Blackburn

http://www.youtube.com/watch?v=GDvF89Bh27Y

FelineGuitars

good stuff

Misterg

That Mullard film was fantastic. I would watch it for the machines alone. (I seriously doubt if there are many people left who could design those things, and not a CAD station or a stepper-motor in sight!)

Loved it.

Wow'd

HHwarner

We certainly knew how to make stuff back then. A lot of skills sadly lost

Clarky

Trace Elliott did a cool thing about growing valves in their Watts farm..