31-10-2013, 08:46 AM
No pre-set Vout pot present, Al. The PSU is a standard dual rail (+28/0/-28v) with bridge rectifier, and further r/c decoupled lines of +13 & -13v. One of the o/c resistors (on the PSU PCB) was in the -13v line, and the other, on the RF/IF PCB, further decouples a +13v line down to ca. 11v. No visible sign of ingress of damp, either. The unit is about 31 years old, so the two resistors could simply have failed due to age!
