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

Majestic Ch= 390

Majestic Ch= 390; Grigsby-Grunow - (ID = 670433) Radio
 
Majestic Ch= 390; Grigsby-Grunow - (ID = 670434) Radio
Use red slider bar for more.
Majestic Ch= 390; Grigsby-Grunow - (ID = 670433) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Year: 1933 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 58 56 58 58 55 56 53 80
Main principle Superhet with RF-stage; ZF/IF 175 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Majestic Ch= 390 - Grigsby-Grunow -Hinds Co.
Material Metal case
Shape Chassis only or for «building in»
Notes Push-pull af output stage.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 3 = 1933 and before


All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Here you find 200 models, 118 with images and 156 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
rmXorg