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

Majestic Ch= 25

Majestic Ch= 25; Grigsby-Grunow - (ID = 673977) Radio
 
Majestic Ch= 25; Grigsby-Grunow - (ID = 673978) Radio
Majestic Ch= 25; Grigsby-Grunow - (ID = 1259319) Radio
Use red slider bar for more.
Majestic Ch= 25; Grigsby-Grunow - (ID = 1259319) Radio
Grigsby-Grunow -: Majestic Ch= 25 [Radio] ID = 1259319 800x450
Select picture or schematic to display from thumbnails on the right and click for download.
For model Majestic Ch= 25, Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Year: 1932 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: 51 51 27 51 27 27 47 47 80
Main principle Superhet with RF-stage; ZF/IF 175 kHz; Screengrid 1926-1935
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 115; 230 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Majestic Ch= 25 - Grigsby-Grunow -Hinds Co.
Material Metal case
Shape Chassis only or for «building in»
Notes Uses one or more spray shield tubes; push-pull af output stage; chassis 25 is employed in Cheltenwood, Brentwood and Brucewood models.
External source of data Ernst Erb
Source of data The Radio Collector's Directory and Price Guide 1921 - 1965
Circuit diagram reference Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)


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