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Symphony Leader 537

Symphony Leader 537; Airzone 1931 Ltd.; (ID = 205869) Radio
Symphony Leader 537; Airzone 1931 Ltd.; (ID = 205870) Radio
Symphony Leader 537; Airzone 1931 Ltd.; (ID = 201243) Radio
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Symphony Leader 537; Airzone 1931 Ltd.; (ID = 201243) Radio
Airzone 1931 Ltd.;: Symphony Leader 537 [Radio] ID = 201243 506x700
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For model Symphony Leader 537, Airzone (1931) Ltd.; Sydney
Country:  Australia
Manufacturer / Brand:  Airzone (1931) Ltd.; Sydney
Year: 1938 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 6A8G 6U7G 6B6G 6F6 5Y3
Main principle Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage Alternating Current supply (AC) / 230-260 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: Symphony Leader 537 - Airzone 1931 Ltd.; Sydney
Material Bakelite case
Shape Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

The dial lights in amber for broadcast, green for short wave.

There is also a 1940 version 537A, equipped with a 6V6G in place of a 6F6.

Literature/Schematics (1) Australian Official Radio Service Manual Vol. 3, Page 23

Model page created by Ernst Erb. See "Data change" for further contributors.

All listed radios etc. from Airzone (1931) Ltd.; Sydney
Here you find 288 models, 98 with images and 147 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.