[jcassity]

Still....if you have 70V across 500 ohm (do I understand that you only saw 70V across 500 ohm and not through 300 ohm?)

yes, thats right,, i am working with a very large 500ohm resistor for R102., and that is where i took my voltage readings for you last night.

 i let "some" smoke out my single small in size original replacement 300ohm resistor, it was about the size of a small tootsie roll.
to answer this problem, I put 3) 1k in parallel and those started to discolor the white paint indicator marker. these 1k types were a tad longer than 1 inch.

picture below shows my original replacement 300 ohm R102 .. and for the wattage pure dc , I believe i met or exceeded the calcs by what i installed.

I was leaning towards the same thing that im in the middle of the filter ckt so i am acutally dealing with pulsating DC ,, one half the AC peak to peak for the ball park guestimate.  if so, the ac input to the rect tube pin 6 is 400v.or 
200v pulsating DC.
either way it seems if if E^/R=P, then if i do lower my resistance to 300 ohms, in this area in among the filtration circuit, my wattage dispation will need to go "UP !".

Terry mentioned using a filter coil instead,, i dont have any tools to measure henry's but he mentioend a 5henry / 100ma rendition should soak up all the heat well enough.

one pic below shows an arrow at my blue 300ohm resistor which started to smoke a little, the white paint indicator marker allowed me to watch it start happening..
the next pic shows my 500ohm answer to addressing heat..