Check the listing for details. Sencore Caddy Bar Generator Pattern Selector Color Output CG19 #x1. Condition: Used. Listed at 15.00 USD. The Sencore Caddy Bar Generator Pattern Selector Color Output CG19 is a testing instrument used for tube testing. It is a product made in the United States and is designed for use in the business and industrial sector. The device is manufactured by Sencore and is a modified version of the model CG19. It is important to note that this product is sold as-is and is not part of a custom bundle.