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Radiola Balanced Amplifier Type AF

Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027851) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027852) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027853) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027854) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027855) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027856) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027857) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027858) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027859) Ampl/Mixer
 
Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 1027860) Ampl/Mixer
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Radiola Balanced Amplifier Type AF; RCA RCA Victor Co. (ID = 47369) Ampl/Mixer
RCA RCA Victor Co.: Radiola Balanced Amplifier Type AF [Ampl/Mixer] ID = 47369 340x315
Select picture or schematic to display from thumbnails on the right and click for download.
For model Radiola Balanced Amplifier Type AF, RCA (RCA Victor Co. Inc.); New York (NY)
 
Country:  United States of America (USA)
Manufacturer / Brand:  RCA (RCA Victor Co. Inc.); New York (NY)
alternative name
 
RCA Manufacturing || Victor Talking Machine
Year: 1924 Category: Audio Amplifier or -mixer
Valves / Tubes 2: WD11 WD11
Details
Power type and voltage Dry Batteries
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Radiola Balanced Amplifier Type AF - RCA RCA Victor Co. Inc.; New
Material Wooden case, TUBES VISIBLE.
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 140 x 150 x 170 mm / 5.5 x 5.9 x 6.7 inch
Notes Battery setup:

When the Radiola Balanced Amplifier is used with the Radiola III Receiver, a common "A"battery for both units is recommended. For lighting the filaments use five 1.5 Volt Dry Cells connected in parallel.
Note: A two-volt storage battery may be used if desired.

When the Radiola Balanced Amplifier is used with the Radiola III Receiver, a common "B"battery for both units is recommended.
As the receiver uses 45 volts of "B" battery, and the Amplifier requires 90 volts of "B" battery, two additional 22.5 volt blocks (or one 45 volt block) will be required for the units when used in combination.

For Grid bias one 4.5 volt Dry Cell is required as "C" battery.

Push-pull output.
The WD11 were often replaced by UX199, using adaptors. 60 mA from 3 V made only 0.18 W per UX199, while the WD11 drew 0.25 A from a 1.5 V battery = 0.375 W, practically twice as much. The price was the same: 6.50$.
Price in first year of sale 30.00 $
Collectors' prices  
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in Radio Manufacturers of the 1920's, Vol. 3
Literature/Schematics (1) - - Manufacturers Literature (Users Manual)
Literature/Schematics (2) Adv. Radio Broadcast, May-Oct. 1924


All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
Here you find 4739 models, 2822 with images and 3825 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




 


Forum contributions about this model
RCA RCA Victor Co.: Radiola Balanced Amplifier Type AF
Threads: 1 | Posts: 1
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rca: III (3); Balanced Amp
Konrad Birkner † 12.08.2014
07.Mar.04
  1 Maße: 140 / 150 / 170 ; Röhren: 2x WD11 im Gegentakt(!);  
 
RCA RCA Victor Co.: Radiola Balanced Amplifier Type AF
End of forum contributions about this model

  
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