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Improved Shielded Laboratory Receiver SG440 (440 SG)

Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 1303013) Radio Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 1303014) Radio
Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 1303015) Radio Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 1303016) Radio
Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 2301700) Radio Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 2301701) Radio
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Improved Shielded Laboratory Receiver SG440 ; Silver - Marshall; (ID = 1303013) Radio
Silver - Marshall;: Improved Shielded Laboratory Receiver SG440 [Radio] ID = 1303013 800x600
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For model Improved Shielded Laboratory Receiver SG440 (440 SG), Silver - Marshall; Chicago, IL
 
Country:  United States of America (USA)
Manufacturer / Brand:  Silver - Marshall; Chicago, IL
Year: 1927 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 201A 201A 22 22 22 200A 112A 71A
Main principle Super-Heterodyne (Super in general); Screengrid 1926-1935
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Improved Shielded Laboratory Receiver SG440 - Silver - Marshall; Chicago, IL
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes

Featuring the SG440 time signal amplifier whose layout includes 3 screen grid tetrodes type 22 and a triode detector 00A. It is NOT the conventional 01A based MF amplifier. Wave change by different plug-in coils (Antenna and Oscillator coil).

Collectors' prices  

Model page created by Luca Posca. See "Data change" for further contributors.



All listed radios etc. from Silver - Marshall; Chicago, IL
Here you find 224 models, 110 with images and 121 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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