[Amps] Restoring DX-100

Bob Good k4bg at planters.net
Sat Jan 15 07:56:21 PST 2011


Gentlemen,  I learn daily from all the interesting posts.  I now have a question.  I am in the process of restoring a DX-100 and am ready to apply high voltage.  I have only run filaments  so far.  I am aware that the rectifier filaments have to be hot before they will conduct to the capacitors and the same transformer  supplies the filament as well as the low voltage stages.  I have a Variac in line.  Since it is a common transformer supplying both filament and LV, I do not know how I am going to slowly bring up the voltage to the electrolytic since I have to have full filament voltage.......The same goes for the HV to the finals and modulator.  In my old age I have perhaps forgotten some of what I am supposed to know.  Just trying to do it correctly.  Any suggestions would greatly appreciated.  thanks and "73,  Bob K4BG


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