Q Nobatron QB28 2 Power Supply 0 40 VDC 0 2 5 A DC 11537

  For sale is a Q Nobatron QB28-2 Power Supply 0-40 VDC, 0-2.5 A DC 
105-125V input
28V Output

I plugged this in. It turned on and appears to be working. The 
meter needle moved when I turned the dial.

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