Vigortronix 115230v chassis mains transformers vigortronix vtx 126 020 409 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 126 020 409 chassis transformer 2x115v 20va 9v9v