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D525; Masteradio, London (ID = 776190) Radio
D525; Masteradio, London (ID = 1133154) Radio D525; Masteradio, London (ID = 1133155) Radio
D525; Masteradio, London (ID = 1133156) Radio
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D525; Masteradio, London (ID = 1133154) Radio
Masteradio, London: D525 [Radio] ID = 1133154 933x507
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For model D525, Masteradio, London
Country:  Great Britain (UK)
Manufacturer / Brand:  Masteradio, London
Year: 1965 ? Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 7: AF115 AF117 AF117 AC127 OC81D OC81 AC127
Main principle Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Power type and voltage Dry Batteries / 9 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4.12 inch = 10.5 cm
Power out 0.25 W (unknown quality)
from Model: D525 - Masteradio, London
Material Plastics (no bakelite or catalin)
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 224 x 125 x 52 mm / 8.8 x 4.9 x 2 inch

Portable radio with "Luxembourg" and "Caroline" bandspread. Fitted with sockets for car aerial, & earphone. SW band 5.7-10.3 Mhz. Battery type PP6.

Also marketed as the model types GEC G825 and Sobell S325.

Source of data -- Schematic
Circuit diagram reference Radio and TV Servicing books (R&TVS) book
Literature/Schematics (1) ERT Chart 1515

Model page created by Keith Staines. See "Data change" for further contributors.

All listed radios etc. from Masteradio, London
Here you find 86 models, 52 with images and 55 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.