Vigortronix 230v chassis mains transformers vigortronix vtx 126 020 218 a comprehensive range of chassis mounting transformers with single 230v primary windings suitable for 5060hz operations and twin secondary windings suitable for connecting in series parallel or centre tap giving a wide range of output voltage and current combinations vigortronix vtx 126 020 218 chassis transformer 230v 20va 18v18v