Can you help me identify the specs on the rack-mounted power supply I just bought off of Craigslist? Pics attached?

24VPS on the back may mean 24 Volt Power Supply. The meter goes up to 25 amps, so the max is probably a bit less than 25. So probably 24 volts DC at 20 Amps.

The terminal strip on the back has jumpers on two sets of four screws. That leaves 3 screw terminals for negative and 3 for positive. The blue cans are capacitors.

If it has not been used in many years, then the caps should be reformed.

RMS stands for Root mean squared. Its a way to find an average for a waveform. The formula is Vp * .707 Vp means voltage peak and describes half of the waveform so Vp * 2 will give you voltage from peak to peak or Vpp.

You can convert back and forth between RMS and Vp by simply multiplying or dividing by .707 "Tp" usually means test point but I'm not sure why you would have test points on a power supply unless it is to determine the state of an unknown load without accessing the load itself? Not sure what it is but either way it looks awesome/scary.

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