I;ve got an sx-1010 a couple months ago. Last nice I checked some voltage measurements inside the unit to see how much work needs to be done besides new caps. Can anyone with a sx-1010 service manual tell me all the dc voltages I should be seeing after rectification? I'm only asking because some of these values seem off. For the main amplifier board, the secondary transformer windings give 40.1 vac, but after rectification its only + 52 and -52 volts or so. Shouldn't this be higher, like around 56v after rectification, or were diodes less efficient back then? Any help would be appreciated.