[jcassity]

I did some reading and found an old patent on heat sync slip on metal corrigated tubes that slip over a hot tube to help wick heat.  That gave me the go ahead to rig something up on my own.


I studied where the vast majority of heat production was and found that its the hottest right at about 90% up the tube.  of course this makes sense so i designed a heat sync for my rectifier and dual 6k6's.

I used metal strap material and made it into a hook which comes around and bolts to the aluminum plate.  think candy cane hook.  It friction slips on and can expand and contract without worry of breaking the glass.

another thing is that when installed, the chassis sits at a 45deg angle,, well close enough for the sake of conversation,, and the orientation of the recitifier tubes and the two 6k6's , these tubes just radiated a ton of heat upon the transformer. prior to this mod with the radio on the work bench simulating the angle, i recorded 138degF on the transformer. Now i am hard pressed under the same simulation to find over 100 degrees.

i was able to shave off about 40deg on each tube doing this. 

funny, now that one 6k6 that had a lot of blue dancing around ,, well you can barely notice any blue at all.

i have since added another hunk of aluminum to gather even more heat but this has to be enough.