Showing posts with label Westinghouse. Show all posts
Showing posts with label Westinghouse. Show all posts

Monday, December 8, 2014

A HIGH-POWER OUTPUT TUBE - THE 250 - 1929

An early article about the 250 from the Westinghouse Lamp Company.  I wonder if Tesla was still working for Westinghouse in 1929?
  
Here are a couple examples of the mighty 50. The first is my fave as the construction is over the top compared to the others which I am sure are great tubes. But you have to admit they look sad by comparison. 






Wednesday, November 21, 2012

Wednesday, September 16, 2009

1931 Article Indoor applications of air-coliumn horns by C.J. Brown

This is a very early article on the proper horn for use in theater applications.