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521 1950 version.

521; Standard Telephones (ID = 2394340) Radio 521; Standard Telephones (ID = 2394342) Radio
521; Standard Telephones (ID = 2394343) Radio
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521; Standard Telephones (ID = 2394340) Radio
Standard Telephones: 521 [Radio] ID = 2394340 570x522
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For model 521 1950 version., Standard Telephones and Cables Pty, Ltd (STC), Sydney:
This STC case is known as the Jelly Mould and was also used for the mains powered model B105. Model 521 is a table model for use with external batteries and external aerial.
Country:  Australia
Manufacturer / Brand:  Standard Telephones and Cables Pty, Ltd (STC), Sydney
Year: 1950 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 1R5 1T4 1T4 1S5 1Q5GT
Main principle Super-Heterodyne (Super in general); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 8 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage Dry Batteries / 2 x 45 & 1.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm
Power out
from Model: 521 [1950 version.] - Standard Telephones and Cables
Shape Tablemodel, with any shape - general.
Circuit diagram reference Australian Official Radio Service Manual Vol. IX

Model page created by Stuart Irwin. See "Data change" for further contributors.

All listed radios etc. from Standard Telephones and Cables Pty, Ltd (STC), Sydney
Here you find 589 models, 136 with images and 244 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.