If the original equipment electrolytic capacitor is rated at 475 volts (8uf - 8uf x 475v can capacitor) can I
use a new 10uf - 10uf x 450 volt electrolytic? One of the tubular jobs from AES. I am replacing the
power transformer with a 350-0-350. The secondary voltage on the original equipment was rated at 680
volts on the schematic. Both sides of the 8uf caps are connected to the center tap of the secondary.

: If the original equipment electrolytic capacitor is rated at 475 volts (8uf - 8uf x 475v can capacitor) can I
: use a new 10uf - 10uf x 450 volt electrolytic? One of the tubular jobs from AES. I am replacing the
: power transformer with a 350-0-350. The secondary voltage on the original equipment was rated at 680
: volts on the schematic. Both sides of the 8uf caps are connected to the center tap of the secondary.

Hi Kevin

Worst case, no load, will be 1.414 X 350 volts or about 495 volts. Your capacitors should never see this voltage as most radios have some resistors to ground and the rectifier tube has a voltage drop. Also if the radio has a slow heating rectifier, such as 84, the voltage will not be as high since the other tubes in the radio will be warming up at the same time, drawing current.

If you are not sure, to be on the safe side, AES does sell 10 mfd @ 500 volt electrolytics.

Norm

If an original radio uses a 0.022uF 25V(rated voltage) caramic capacitor, can I replace the capacitor with a 0.022uF 50V capacitor?