MULLARD MODEL 531 'LONG DISTANCE' (CIRCA 1939)

The Mullard model 531 was manufactured for C. & A. Odlin Ltd by Philips Electrical Industries of N.Z. Ltd in about 1939.

5-valve dual-wave set - equivalent of the Philips 155.  Very close to the Mullard 520 and 620 (Also Philips 152 and 153)

Valves (5): ECH3, EF9, EBC3, EL3N, AZ1

Intermediate Frequency: 472.5kc/s

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

Philips 152, 153, 155 and Mullard 531, 520, 620 Schematic

Philips 152, 153, 155 and Mullard 531, 520, 620 Coils

Philips 152, 153, 155 and Mullard 531, 520, 620 wiring

All documented models using this chassis (6 in total)

YEARMODEL NAME
1939Mullard model 531 - this set
1939Philips model 152
1939Philips model 153
1939Philips model 155
1939Mullard model 520
1939Mullard model 620