[Drake] TR3 with 6JB6 Finals Need Feedthru cap

[WDAnderson at aol.com]

Hello List 
 
I picked up a non-working TR3 and AC3 at a local hamfest a few weeks ago  and 
one of the things that I discovered is that the radio has 3 6JB6's in the  
final (instead of 12JB6's) and a big diode was wired in series with the filament 
 line to these tubes, apparently to lower the 12 volts to the final 6 volt  
filaments. Anyone see this before? 
 
Also, I need a feed-through cap for the filament line into the RF stage,  
since that was damaged in the "mod" Any handy sources?
 
What say out there?
 
73,
 
Wayne
 
VE3XAZ/WA7LZC