Vigortronix 115230v chassis mains transformers vigortronix vtx 126 075 420 a comprehensive range of chassis mounting transformers with dual 115v115v primary windings suitable for 5060hz operations and twin independent secondary windings suitable for connecting in series parallel or centre tap giving a wide range of output voltage and current combinations vigortronix vtx 126 075 420 chassis transformer 2x115v 75va 20v20v