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Monodic Ch= S50 5 tube console version

Monodic Ch= S50; Electrical Research (ID = 260244) Radio Monodic Ch= S50; Electrical Research (ID = 260243) Radio
Monodic Ch= S50; Electrical Research (ID = 260240) Radio Monodic Ch= S50; Electrical Research (ID = 260239) Radio
Monodic Ch= S50; Electrical Research (ID = 260241) Radio Monodic Ch= S50; Electrical Research (ID = 260242) Radio
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Monodic Ch= S50; Electrical Research (ID = 260244) Radio
Electrical Research: Monodic Ch= S50 [Radio] ID = 260244 458x700
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For model Monodic Ch= S50 5 tube console version, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois:
Ebay Nr. 300033230459 Bild bearbeitet.
 
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 -Loudspeaker incorporated, but system not known.
Power out
from Radiomuseum.org Model: Monodic Ch= S50 [5 tube console version] - Electrical Research
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Notes

Horn-loaded speaker inside on top of the radio chassis.

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.

*** the type plate states: Manufactured under patent applications of the Radio Frequency Laboratories, Boonton. (RFL)

Price in first year of sale 129.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932


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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