[R-390] Smoke got out

[dog]

The wire to P108-B comes from P112-20, the connector to the IF strip. 
That pin also has several other B/W wires on it including a heavy gauge 
B/W wire that comes right from the PS 6.3V. Only the wire to P108-B is 
burned, so it will be easy to replace right in the harness.

Actually that 6.3V on those RF tubes is all connected one after the 
other in series from P108B and the last tube on the burned string is 
V205. It must be there somewhere and it's really tight in there. There's 
still no sign of a short though, that tube measures 3.3Ω cold. The 5814 
for the calib osc buffer.

I didn't have any #20 stranded wire so I ordered some mil spec Teflon 
wire for a few bucks.

I'll measure that tube alone in the other RF module I have.