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Variometer 501

Image ID = 507769 for Kellogg Switchboard Variometer 501  
Image ID = 507769 for Kellogg Switchboard Variometer 501
Kellogg Switchboard: Variometer 501 [Misc] ID = 507769 803x700
Radio News Oct.1922, p. 703
 
Country: United States of America (USA) Manufacturer/Brand: Kellogg Switchboard & Supply Co.
Year: 1923 Type: Miscellaneous (Other, Various)
Principle RF-Circuit (separate)
Wave bands Wave Bands given in the notes.
Power type and voltage No Power needed
Loudspeaker/pwr.out - For headphones or amp.
from Radiomuseum.org Model: Variometer 501
Material Bakelite case

This model was suggested by Otto Frosinn.

All listed radios etc. from Kellogg Switchboard & Supply Co.
Here you find 45 models, 4 with images and 7 with schematics.


  
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