View Single Post
  #11  
Old 10-01-2013, 09:43 PM
Eric H's Avatar
Eric H Eric H is offline
Administrator
 
Join Date: Jun 2002
Location: So. Calif
Posts: 11,565
Quote:
Originally Posted by radio nut View Post
so, last question, when I turn this set on it comes up in horizontal lock fine. after that for about 30 seconds the picture gets wavy then goes back in lock and stays fine. should I try to adjust something or is this normal for vacuum tube technology?
Without seeing a schematic I can't say for sure but there may be some adjustments for the horizontal besides the normal Hold control.
Many sets have either a frequency coil or a trimmer that can be adjusted for better stability.
It also could just be the Oscillator tube drifting a little as it warms up.
Reply With Quote