radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

72

72 ; Electrical Research (ID = 1594837) Radio
Use red slider bar for more.
72 ; Electrical Research (ID = 1594837) Radio
Electrical Research: 72 [Radio] ID = 1594837 933x1343
Select picture or schematic to display from thumbnails on the right and click for download.
For model 72, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois:
Image courtesy of Mark V. Stein for Radiomuseum.org use only. Cathedral and Tombstone Radios.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Year: 1930 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7:
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC)
Loudspeaker
Power out
from Radiomuseum.org Model: 72 - Electrical Research
Material Wooden case
Shape Tablemodel with Clock ((Alarm-) Clock Radio).
Notes

One dial (primary tuning control knob)

Clock radio. Stein mentions 6 tubes.

Price in first year of sale 77.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965
Literature/Schematics (1) Cathedral & Tombstone Radios (page 107.)


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.



  
rmXorg