[jcassity]

im not that experienced in real past / known problems, but i saw it in my mind playing out the problem.  Thinking it through i decided to hard wire / solder the actual bakalite filter cap tab directly to a bonded point and daisy chain all the other important reference ground points as well.

THis is something i add to my very short list of recommendations to others who tinker with these tube radios.. along with poloarized chords, inline fuse etc.

now that you put my cross hairs on this topic, spmeone here told me that i dont need an isolation transformer for my radio because i have one already by design.  however,, if the primary side filter caps are bonded to the chassis and as well, the secondary filter caps are bonded to the chassis, then the primary is not totally isolated from the secondary !!,,,  seems to me a 3 prong input chord would solve this issue.  the input filter caps ground would need disconnected from chassis and reterminated to the green third prong of the input chord. 

sorry, hijack of thread over,,, just thinking out loud.