General Radio Model W2
120V in, 0-140 V out 2.4A,
This is mounted on a chassis and has a gear reduction for precision adjustment and an isolation transformer.
VAR2WA $59.00

General Radio Model M5

Powerstat Model 236B
240/120 Vin, 0-280V out, 10 Amps
This unit is caged and comes with a knob.
VAR236B $79.95

General Radio Model V6
115V in, 0-140 out 5 A
This unit is caged with power cord , knob and plug ideal for bench use.
VARV6 $59.95

Powerstat 1256-2S-B
440/220V in,  480/240 Vout at 28 Amps
This is a dual variac; two on one shaft, knob and bezel included this is caged to protect the careless but it is still a backbreaker.
VAR1256A $349.00

Superior Electric Model 1256
230V min, 0-270V out at 28 Amps
this is a single caged unit with knob and bezel, new in box.
VAR1256B $329.00

General Radio Model  W5H
230V in , 0-240V out at 2 A
this is an open frame variable autotransformer knob and bezel available separately
VARW5H $19.95

Powerstat Model V6116B
110V in,  0-140V out @ 1.4A
This is an enclosed model with meter and knob mounded on a chassis with outlets and power cord attached.
VARV611 $59.95

General Radio Model W2

General Radio Type W5
110V in at 6Amps, 0-140 V or 0-260V out
This is a dual variac for  220-0-220 v input type applications two open frame autotransformers are attached on one shaft with a knob and bezel
VARW5A $69.95