What is the proper ps mod for rectifiers that are arc'ing in C+.   I've seen the topic discussed for other amps and searched for an anwser but can't find it.  Seems like a resistor in line just before the 1st cap to limit current rush.   Anyone know a good value.   I also read in another forum that using a silicon diode (in-line) on each plate leg worked by creating a gap (between its voltage turn on point)  that arrested the arch.