LW136B Series POWERSTAT® Variable Transformers have three windings: two 120 volt primary windings which can be connected in either series or parallel so that the unit can operate from either a 240 volt or 120 volt line, and an isolated secondary winding rated 0-30 volts, 25 amperes. A center tap on the secondary winding allows 15-0-15 volt operation at a current rating of 35 amperes. Connections can be made for operation as a
source of adjustable low output voltage, a line voltage corrector or a limited range variable transformer.