This is a used Astron power supply.  It works perfectly.   The unit does show some signs of use.  The paint has scratches.   Please look at the photos.
 
 
Astron Power Supplies
When you are in need of reliable DC power supply, look no further than Astron Power Supplies. This line of linear DC power supplies are made of heavy-duty, high-quality materials.
Astron has your power requirements covered with a wide variety of voltage and amperage outputs and case styles with and without meters. Even their power supplies with only cigarette lighter sockets or with Anderson Powerpoles on the front panel still have DC output terminals on the rear panel. That's convenient!
Astron linear-type transformer power supply features include:
* Solid state electronically regulated
* Fold-back current limiting protects power supply from excessive current and continuous shorted output
* Crowbar over voltage protection on all models except RS-3L, RS-4L and RS-5L
* Tight regulation and low ripple at low line input voltage
* Heavy-duty heat sink (70A models add a low noise fan)
* Three conductor power cord
 
Power Supply Width:
8.000 in.
Power Supply Height:
4.500 in.
Power Supply Depth:
9.000 in.
Power Supply Weight:
15.00 lbs.