Quote:
Originally Posted by kramden66
old coot any idea whats causing the ghost in my set ?
mike
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No idea. But for a start, i'd check all the peaking coils 'downstream' from the video detector thru the video output. They're little single-winding coils that normally measure just a few ohms or less. You don't have to disconnect them to measure, since the ohms are so low.
TJ:
A VTVM's main advantage is its very high input impedance. It doesn't impose near as high of a load on a high impedance circuit as the VOM does, thus minimizing loading error. An example of such a circuit is the AVC (automatic volume control) buss in an AM radio.