Sometimes I think of this problem believe it or not. It will probably
haunt me till I die.
One thing I wonder about it is had the tripler replaced by an ECG etc.
Somewhere with a scope you should see a big hoz spike then a trail
of smaller & smaller ones as it goes right then the next big spike.
It has to be seen on either the K's or G!, or G2. With zero signal, not even snow it has to be there. Hmm 1000 V boost filter ?
Another sleepless night.
73 Zeno

LFOD !
BTW did you try Shango or Jordan Pier ?