Bought the amp to get an education on SE 300B amps in general.. What an education to say the least lol... I may have come full circle, realizing the issue was actually written in English on my amp 
Right above the Din-E
110v !!!
In all fairness, I could not have known the original design was at the upper limit at 110V, with no elbow room for higher voltage...
At 120V, the extra 10V looks to be the issue for a 300B and B+ being WAY to high. Using the viariac and dialing to 110 (And even 100V) puts my load lines in a MUCH better place.... Hunting down a 120V to 110/100 V 500w transformer now...
In the meanwhile, I noticed my 175w light bulb current limiter droped the voltage from 120 to 100v, Whats the chances lol... Wondering what would be the downside of using a bulb to limit the voltage ?
Right above the Din-E 110v !!!
In all fairness, I could not have known the original design was at the upper limit at 110V, with no elbow room for higher voltage...
At 120V, the extra 10V looks to be the issue for a 300B and B+ being WAY to high. Using the viariac and dialing to 110 (And even 100V) puts my load lines in a MUCH better place.... Hunting down a 120V to 110/100 V 500w transformer now...
In the meanwhile, I noticed my 175w light bulb current limiter droped the voltage from 120 to 100v, Whats the chances lol... Wondering what would be the downside of using a bulb to limit the voltage ?
Disregard the last question.
The bulb also reduced current through the cathode resistor.. With the Variac at 100v, I had 45mA through the 1k cathode resistor and only 22mA using the bulb...
The bulb also reduced current through the cathode resistor.. With the Variac at 100v, I had 45mA through the 1k cathode resistor and only 22mA using the bulb...