the evolution of the input transformer, 1926

“Bell Laboratories – The Evolution Of The Input Transformer By F.E. Field” – see whole series of scans at isithifi.blogspot.com.

Comments

  1. Great post !!! Awesome! Interesting. THANKS

  2. Written by “F.E. Field” ??
    Is this a joke or just a hilarious coincidence?😀 (Fe = iron, Field = magnetic flux)

Trackbacks

What do you think?

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: