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77B

77B; Cossor, A.C.; London (ID = 210259) Radio 77B; Cossor, A.C.; London (ID = 1152063) Radio
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77B; Cossor, A.C.; London (ID = 210259) Radio
Cossor, A.C.; London: 77B [Radio] ID = 210259 302x400
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For model 77B, Cossor, A.C.; London:
From an auction catalogue.
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Cossor, A.C.; London
Year: 1942 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 41STH MVS/PenB DDT 2P 431U
Main principle Superheterodyne (common); ZF/IF 465 kHz
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 200-250 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 20 cm = 7.9 inch
Power out
from Radiomuseum.org Model: 77B - Cossor, A.C.; London
Material Bakelite case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Dimensions (WHD) 14.5 x 18.5 x 10 inch / 368 x 470 x 254 mm
Notes Valves/Tubes used in this model: 41STH (frequency changer) MVS/PenB (IF amplifier) DDT (det./AGC diodes, AF triode) 2P (output triode) 431U (rectifier) The 2P output valve is a type developed to circumvent the wartime restrictions on output valve power and has an anode dissipation of exactly ten Watts, the maximum allowed without obtaining a special permit. See also the wooden cabinet version of the Cossor 77.
Source of data Radio! Radio!
Literature/Schematics (1) Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (502)

Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.



All listed radios etc. from Cossor, A.C.; London
Here you find 290 models, 199 with images and 180 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Cossor, A.C.; London: 77B
Threads: 1 | Posts: 1
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cossor: 77B (77 B);
Mike Izycky
03.May.05
  1 Valves/Tubes used in this model:
41STH (frequency changer)
MVS/PENB (IF amplifier)
DDT (det./AGC diodes, AF triode)
2P (output triode)
43IU (rectifier)

The 2P output valve is a type developed to circumvent the wartime restrictions on output valve power and has an anode dissipation of exactly ten Watts, the maximum allowed without obtaining a special permit.

The loudspeaker is a 20cm dia. electrodynamic type.
 
Cossor, A.C.; London: 77B
End of forum contributions about this model

  
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