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You can use the neon lamp taped to a non-conductive stick to check out the different parts of the HV system...first hold near insulation of Horizontal output tube plate lead to see if there is HV AC there...then you can move it to the plate of the rectifier. I don't know if it can detect the DC from the output of the rectifier but I know it can pick up the AC at the horizontal output plate, the yoke leads, and the HV rectifier plate lead.
This is for a traditional magnetic deflection set...if it is electrostatic it will use something like a 12AU7 for the horizontal output tube and use a seperate tube as an oscillator for HV.
The lamp may be a cathode fuse on the horizontal output tube...I have installed lamps like this in color sets. In sets having a horizontal efficiency coil you can adjust it for minimum current by adjusting for minimum lamp brightness.
Last edited by Chad Hauris; 05-18-2005 at 09:41 AM.
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