> > How hot is the darn thing -supposed- to get?
For your unit I don't know. I have used hundreds of SOLA Constant Voltage Transformers, of the 250, 500, 1000, and 3000 watt versions. They were of the CVH (harmonic neutralized..SQUARE WAVE) and the CVS (SINE wave type). The 250 watt is impossible to touch in service even with no load. They will remove skin but will work for over twenty years without fail. The 500 watters and the bigger ones being larger (having more mass) can be touched but still run warm. What these things were for was to take a voltage of 90 to 140 volts ac and maintain it at exactly 120 volts. We used them for lightning protection and they worked fine protecting what ever was plugged in; radio equipment and test equipment in the racks. They all draw current when not in use and therefor are a waste of electricity unless they are actually supplying something. Protecting a EIMAC high dollar tube filament would be a great use. We nailed them to concrete block walls vertically for convection cooling. I worked with these things 38 years and don't remember but one capacitor failing in one which was easily replaced and returned to service. Hope this non-answer helps. 73 Mike
