Power Designs 2K-10 power supply teardown

[LukeW]

After watching too much EEVblog, etc, I have been inspired to make my own technology video.
I don't pretend to be any video production expert, the video is just a crude job with me waving around a smartphone. This is not something I do professionally every day with lots of equipment and experience, so try not to be too harsh.

This is a Power Designs 2K-10 0-2kV regulated DC power supply, 10mA Iout.

I'm not sure exactly when it was made, but it's probably at least as old as me or a little older. Good quality stuff that has stood the test of time, though. It's US-made, and it's running off a 115VAC stepdown transformer in this video.

Since making the video I have used a Fluke 1000:1 40kV voltage divider probe to measure the HV output on the 'scope, and the regulation is very good, with quite clean DC.

A good little power supply for testing devices that require a bias on the kV scale at low currents - scintillation detectors and other technologies involving photomultiplier tubes were mainly what I had in mind, as well as Geiger-Muller tubes.

And I got it for only 5 bucks! (it did require a little bit of love, such as cleaning out dirt and grime, replacing the fuseholder, mains cable and two of the neons, as well as the 115V stepdown transformer.)



Edit: Helpful to actually include video.

[saturation]

This is an excellent unit, thanks for the review.  I've been toying with buying one as many remain on the eBay. I have an electrophoretic unit that generates up to 2-3kV, but its a SMPS, and its very noisy.  But I use it only for destructive testing of dielectrics so cleanliness isn't required.