The Heathkit W-5M Choke Transformer 46-12 is a vintage audio component known for its high quality craftsmanship. Produced by Heathkit, the model 46-12 features a Stancor 7h 140mA 160ohm design, making it a valuable addition to any vintage audio setup. With its sturdy construction and classic design, the Heathkit W-5M Choke Transformer is a sought-after piece for collectors and enthusiasts of vintage electronics. Used and tested on a DIY tube amp circuit board.