We're trying to troubleshoot an ancient power supply for a high pressure
mercury arc lamp. Theres a SOLA transformer that feeds into a rectifier
stack and then two large filter caps. The output from the filter caps is
only 60 vdc while they are rated for 150 wvdc. Every SOLA I've seen had
a 115 vac regulated output. Theres no specs except for the SOLA part
number "21-877". Do they all output 115 vac or were there lower voltage
models? My guess is that the oil capacitor has gone bad and its no
longer regulating correctly. Any thoughts?


Adam