OK, I got brave and flipped the switch and started testing voltages with everything disconnected. I've got a H724 PS and everything looks good except the +8Vdc line which is for powering the light bulbs on the front panel, and the 14Vac. The +8Vdc should be between 6-10Vdc according to Volume 1 of the maintenance manual, and it's currently at 11.14Vdc. The 14Vac looks like it might be even more messed up, as I'm getting 8.95Vac on one line and 19.26Vac on the other, but it doesn't look to be used. Now for everything except the +8Vdc and 14Vac everything looks to be adjustable. So, is there anything I can tweak on this, or should I just not worry about it? I really don't want to be blowing lightbulbs if I can help it. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast | | | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |