[R-390] voltage regulator, dropping resistors

[Henry Meils]

Hello Miles Anderson (Regards to Howie, WA2SSS also out there on the (G)Island)

Well, as I mentioned, I take into account the resistors mounted on this chassis & the VR-tube runs cooler than than the AF output tubes. Heating seems to be concentrated immediately adjacent to L106 and not so much directly adjacent to the regulator R-s. Oddly enough L602, same distance from the power resistors runs cool.
Of course, with the AF module dismounted, its heat cannot dissipate to the main chassis - thereby warming up more than otherwise.
As for the choke, I exactly did NOT jump to any conclusions by checking current drain and substituting another choke in its place. I still would like to know what others here have experienced as typical current drain in different modes.
My main concern is do others experience the same warm-up in choke L106 and the same B+ current drain as I do? 
I just measured actual temperature of the chassis after 45 minutes running time: 34 dgrs, C /abt 93 dgrs, F (ambient room temp is abt 24 dgrs, C. (On L602, only that side flush with L106 warms up). Now we have some hard numbers for comparison. You should be able to tell if your module runs warm, too - surprised or not. 
Let me add that the previous owner has made mods (without indicating them on the diagrams), there was no audio before I wired the missing a cathode R in the Line AF output tube. Also, extensive mods have been made to the AGC system. Therefore I am concerned about heat-up and current drain because my very first R-390A (unmodified) did not warm up at this module to the same degree.

Henry/Hank F. M., OZ1UF/Cph, DK