Quote:
Originally Posted by Electronic M
...A good way to tell in absence of a tube tester is to
GROUND THE BLADE
of a flat edge screw driver, with the set off lift the top cap on the rect enough that some of the metal is exposed, turn the set on and try to draw an arc/corona off the HV rect top cap.
|
O jeezus. Not this old chestnut again.
Yikes. There is no need to ground anything. If the fly is working OK, the screwdriver will draw a healthy 'air arc' a half-inch or so long. (Of course the screwdriver needs to have a well insulated handle to hold it by.)
Striking a direct-to-ground arc off the HV secondary is compounded by the fact that the winding is forced to carry B+ current plus the excessively high RF component. Please don't tell noobies to do this.