The HMV 525BC was manufactured for His Master's Voice (New Zealand) Ltd by Various in 1953.
Broadcast band 5-valve radio
Second of three 'Little Nipper' models
Valves (5): 7S7, 7B7, 7C6, 7C5, 7Y4
Intermediate Frequency: 455kc/s
Chassis Notes (most schematics can be clicked to download a full size version):