[Amps] Tubes, made in the USA, in the olden days; Films?

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Mon, 30 Aug 2010 15:25:06 -0700, Pete Lancashire
<pete at petelancashire.com> wrote:

>
>http://www.youtube.com/watch?v=VV7cimRWah0
>
>and
>
>http://www.youtube.com/watch?v=HveUY7eivfI&feature=related
>
>both are multipart

REPLY:

Fascinating, thanks!

73, Bill W6WRT