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Two-Stage A.F. Amplifier 2-Step A.F.Amp. without front switch

Two-Stage A.F. Amplifier 2-Step A.F.Amp.; Crosley Radio Corp.; (ID = 98345) Ampl/Mixer
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Two-Stage A.F. Amplifier 2-Step A.F.Amp.; Crosley Radio Corp.; (ID = 820530) Ampl/Mixer
Crosley Radio Corp.;: Two-Stage A.F. Amplifier 2-Step A.F.Amp. [Ampl/Mixer] ID = 820530 933x583
Select picture or schematic to display from thumbnails on the right and click for download.
For model Two-Stage A.F. Amplifier 2-Step A.F.Amp. without front switch, Crosley Radio Corp.; Cincinnati (OH):
This is the second version of the Crosley Two-Step audio Amplifier. The switch to select 1 or 2 stages of amplification was eliminated and had what Crosley called the new style Adam brown mahogany cabinet. This amp was built to match the second generation of Harko Senior radios.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Crosley Radio Corp.; Cincinnati (OH)
Year: 1922/1923 Category: Audio Amplifier or -mixer
Valves / Tubes 2: UV201 UV201
Main principle Audio-Amplification; 2 AF stage(s)
Wave bands - without
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Two-Stage A.F. Amplifier 2-Step A.F.Amp. [without front switch] - Crosley Radio Corp.;
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes This model as second version of "Two-Stage A.F. Amplifier", sometimes called also "2-Step A.F.Amp." has no front switch to select the number of active tubes.
Rider's schematic (without switch) calls it 2-Step Amp., but Crosley advertised Two-Stage Amp. (see Douglas) The first "Two-Step Amp" had a front switch as advertised by Crosley. Riders is insofar in error.
In the September 1922 QST advertisement for Crosley this amp was referred to as the "Crosley Two-Stage Audio Frequency amplifier" in one picture and then the "Two-Step Amplifier" in the cut with the Harko Senior No. V.
Price in first year of sale 25.00 $
Mentioned in Radio Manufacturers of the 1920s, Vol 1 (pp.116, 117)
Literature/Schematics (1) Rider's Perpetual, Volume 2 = 1932 and before
Literature/Schematics (4) August 1922 Radio Broadcast magazine

Model page created by Hilmer Grunert. See "Data change" for further contributors.



All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)
Here you find 1676 models, 1004 with images and 1154 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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