The Sheffield 7V-BS was manufactured by Sheffield Radio Ltd in about 1941.

Actual code not known, shematic was found in the set - set was seen for sale in Australia

Technical Information

Valves (6 + magic eye): 6SK7, 6A8 ( 6K8 ?), 6SK7, 6SQ7, 6F6, 5Y3 and 6U5 Magic Eye

Frequency Bands: 5

Chassis Notes(most schematics can be clicked to download a full size version)

Sheffield 7 valve bandspread schematic