An Amperex Electron Tube labelled:

Rugby Radio Station
03 May 1994
Order Number
334E20587
Item Code
L38264

The 4-400B or 7527 is a 400 watt dissipation tetrode transmission tube.
Amperex, 1994

Donated/on loan from: Anonymous

Amperex Electron Tube

Amperex Electron Tube

  Share your memories of this item:
All comments are moderated before appearing on the site - there will be a delay with comment approval.