View Single Post
  #34  
Old 06-08-2013, 11:33 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,471
If it is not a digital tuner or a turret type(click-stop) then it is called a continuous tuner. The indicator of the UHF tuner is called a slide-rule dial...Common on UHF tuners before the mid 70's and radios since before TV.

The fly ohms out fine, and the horizontal oscillator is running, but the wave shape is significantly off. Also the grid of the HOT which is supposed to be about -32V is 0V or higher depending on the HV control setting.
Because I could not get a raster with the HOT plate drive from my B&K analyst there is trouble either in the fly/damper section or the HV tripler.

I think I'll try testing the tripler by disconnecting it from the fly and connecting it to the plate drive of the analyst to see if it produces HV....I seem to recall someone suggesting removing a shorted HV winding on a fly and deriving HV from a tripler connected to the HOT plate which should be electrically the same as the test procedure idea I have.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote