View Single Post
  #10  
Old 09-24-2014, 12:12 PM
bandersen's Avatar
bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,817
The glass Amperite ballasts contain hydrogen gas which reacts with the iron wire to form a type of current regulation.

That's what they mean by Automatic Regulator on the box.

(edit) I just read the pdf link above which explains it nicely

__________________
Here are my Vintage Radio & TV YouTube Channel and Photo Gallery

Last edited by bandersen; 09-24-2014 at 12:16 PM.
Reply With Quote
Audiokarma