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

7BK748 Ch= 4706R (?) capacity tuning

7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311379) Radio 7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311380) Radio
7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311381) Radio 7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311383) Radio
7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311384) Radio 7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311385) Radio
7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311386) Radio 7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311387) Radio
Use red slider bar for more.
7BK748 Ch= 4706R ; Majestic Radio & (ID = 1311379) Radio
Majestic Radio &: 7BK748 Ch= 4706R [Radio] ID = 1311379 933x689
Select picture or schematic to display from thumbnails on the right and click for download.
For model 7BK748 Ch= 4706R (?) capacity tuning, Majestic Radio & Television Co.,(post 1932)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Majestic Radio & Television Co.,(post 1932)
Year: 1947 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 6J5 6SA7 6SK7 6SQ7 6H6 6V6 5Y3
Main principle Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 117 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4.5 inch = 11.4 cm
Power out
from Radiomuseum.org Model: 7BK748 Ch= 4706R [capacity tuning] - Majestic Radio & Television Co
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 13.25 x 8 x 7 inch / 337 x 203 x 178 mm
Notes

The cap. tuning was introduced to modify the 4708 (Beitman 7-75) from inductive tuning to 4708R (Beitman 8-83) with capacitive tuning. R might stand for Revised.

There are doubts whether a 4708R chassis would match a cabinet designed to take a 4706 chassis. Consequently we must assume that here a modified 4706 chassis was fit, which we call 4706R (similar to the a.m. 4708 story).

Net weight (2.2 lb = 1 kg) 10 lb (10 lb 0 oz) / 4.540 kg
Mentioned in Beitman Radio Diagrams, Vol. 07, 1947 (8-83)
Literature/Schematics (1) Beitman Radio Diagrams, Vol. 08, 1948 (7-75)

Model page created by Thomas Ranz. See "Data change" for further contributors.



All listed radios etc. from Majestic Radio & Television Co.,(post 1932)
Here you find 333 models, 163 with images and 273 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
rmXorg