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Monodic Ch= S50 5 tube table version

Monodic Ch= S50; Electrical Research (ID = 2174516) Radio Monodic Ch= S50; Electrical Research (ID = 2174517) Radio
Monodic Ch= S50; Electrical Research (ID = 2174518) Radio
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Monodic Ch= S50; Electrical Research (ID = 2174516) Radio
Electrical Research: Monodic Ch= S50 [Radio] ID = 2174516 1000x713
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For model Monodic Ch= S50 5 tube table version, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
 
Country:  United States of America (USA)
Manufacturer / Brand:  Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Year: 1926 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: UX201A UX201A UX201A UX201A UX201A
Main principle TRF without regeneration; Neutrodyne
Tuned circuits 3 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries / 5 & 45 & 90 & 9 Volt
Loudspeaker Horn
Power out
from Radiomuseum.org Model: Monodic Ch= S50 [5 tube table version] - Electrical Research
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes

3 RF stages.

2 dial - 3 tuning capacitors. The right hand dial drives 2 tuning capacitors. 

Grid-leak detector.

There is also a version with 6 tubes. The exact difference is not known although it might be the number of AF stages.

There is also a console version with built-in horn-loaded speaker. 

Collectors' prices  

Model page created by Dirk Bladt. See "Data change" for further contributors.



All listed radios etc. from Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Here you find 131 models, 45 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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