Thread: Freshly restored 1933 Silvertone 1660
View Single Post
  #9  
Old 12-16-2021, 01:37 PM
old_coot88 old_coot88 is offline
VideoKarma Member
  
Join Date: Sep 2009
Posts: 2,646
Wasn't the car battery the reason for tube heater voltage finally being standardized to 6.3V ?
Reply With Quote