Industrial XFMR Filament Transformer 220V 25A Single Phase

The XFMR Filament Transformer 220V 25A provides isolated, high-current filament power for vacuum tubes and other demanding industrial electronics, with a 220 VAC primary input and a 25 A secondary output designed for continuous-duty operation. As a single-phase unit operating at 50/60 Hz, it features a laminated steel core, windings of copper or aluminum (manufacturer dependent), natural air cooling, and chassis/base mounting for straightforward installation in RF transmitters, vacuum-tube amplifiers, induction heating equipment, and laboratory power supplies. The high-current secondary is brought out via lead wires or bus bar (configuration dependent); the unit is described as industrial surplus/open-box when applicable and is commonly used by maintenance teams and system integrators as a replacement for failed filament transformers.