For sale is a Powerstat 3PN116B. By any name -- Rheostat - Potentiometer - Variable Resistor - Autotransformer -- this is a nice unit. It doesn’t have any dropouts or detents and adjusts smoothly. Voltage in: 120, voltage out: 0-140 volts at up to 10a. With ground.
I also have a General Radio Company model 10a Variac unit (the black one in the photos). Works perfectly! Asking the same for this one - $125.00
Call for more information or to come by and see. Sorry, no texting. Five-Four-One 758-5271