[BC] Dial lights and tube filaments

[Gary Glaenzer]

The dial lamp was across part of the 35W4 filament, not in series with all
the tubes' filaments

http://www.radiomuseum.org/tubes/tube_35w4.html


----- Original Message -----
From: <DHultsman5 at aol.com>

 > The main reason was the reduction of parts.  No power transformer and the
 > filaments were series inline including the dial light.  On the Hallicrafters
 > AC/DC s-38D receiver the dial light  when you first turned the set on glowed
 > birghtly for about a half a second until the other tubes started 
to draw current.
 > The filament of all the tubes in series equaled 115 volts.  If one filament
 > burned out the set wouldn't work.  Like Christmas tree lights of old days.