View Single Post
  #164  
Old 08-27-2022, 08:41 AM
timmy's Avatar
timmy timmy is offline
VideoKarma Member
 
Join Date: Jan 2011
Location: Delaware ny
Posts: 3,697
All back together and the audio output tube is new and still getting really hot fast voltages still low and the green wire on the volume pot goes directly to pin 2 and there is 280 ma at that pin the volume pot is 2 meg it measures 2.4meg if pin has to be zero I have no clue why there is 280ma there. Still looks like this audio circuit is pulling the b+ down b+ down means all other voltages go down with it. The volume pot has 3 connections green blue and ground which ground is on the body of the pot and one end of the pot maybe the ground is picking up stray voltage from somewhere else and back feeding the pot. I don’t know at this point. If the tube is at zero volts then it will run full but with 280ma then the tube should not run full even chassis out pin 2 still showed around 50-60ma. Now I have discovered that the 1st video 6aw8 and the video output 6hb6 are getting hot fast within 30 seconds being on so I’m off now to look at that circuit.

Last edited by timmy; 08-27-2022 at 09:43 AM.
Reply With Quote