Hello again. circa 1966 Farfisa organ amplifier. Power supply caps (and others) leaking and for sure shot. Strangely all the caps are even values I.E. 500 / 50 / 200/ etc. Guess what? MCM and others only list the values I remember (from Heathkit days) like 470 / 47. Do I really have to tack on little baby adder cap's (4.7 / 33) to make up this difference? I am aware of the voltage requirements. I have also check the good ole web on this subject - most sites say do do de-rate values - but come on - 10%????