William J. Murdock Co. 7-Tube Battery Get a print! $8.00 Add to Cart Product Information: Model:7-Tube Battery Manufacturer:William J. Murdock Co. Schematic Pages Page 1 Schematics Content Page 1: Schematics Please note: we carry a wide range of products which will fulfill the specifications above. Please use our search function or browse our products to find what you need!