Mullard factory tour video

[RAM]

I don't know if this has been posted before. I just got sent it in an email so I thought I'd share. It's an old half an hour video from the mullard factory in blackburn. If you got half an hour to spare, it's pretty interesting.

http://www.techtubevalves.com/about_us/film_reels.php

 

[Kingston]

That was indeed interesting. Great find.

I didn't know what mica, getter or cage were until now. I'd seen the words used at ebay tube sales all the time, but didn't know why.

 

[PRR]

http://www.groupdiy.com/index.php?topic=29392.0