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Harko Sr. + RFTA + Two-Step Amplifier Combination

Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1172377) Radio Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1170014) Radio
Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1170015) Radio Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1172378) Radio
Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1172379) Radio Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1172380) Radio
Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1279093) Radio
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Harko Sr. + RFTA + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1172377) Radio
Crosley Radio Corp.;: Harko Sr. + RFTA + Two-Step Amplifier Combination [Radio] ID = 1172377 933x306
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For model Harko Sr. + RFTA + Two-Step Amplifier Combination, Crosley Radio Corp.; Cincinnati (OH):
Fall of 1922 Crosley combination showing the Non-regenerative Harko Senior, the R.F.T.A. and the Two-Step Audio Amplifier. This combination was electrically equivalent to the Crosley X.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Crosley Radio Corp.; Cincinnati (OH)
Year: 1922/1923 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UV201 UV200 UV201 UV201
Main principle TRF without regeneration; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Harko Sr. + RFTA + Two-Step Amplifier Combination - Crosley Radio Corp.;
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes This combination was proposed in an ad in "Radio Broadcast", August 1922 and in September 1922 in "Radio News". In the September ad Crosley features a total of 8 combinations. This combination of "Harko Sr." plus "R.F.T.A." plus "Two-Step Amplifier" is technically the same as a model X. The "2-Step A.F.Amp." has no front switch to select the number of active tubes but the combination can naturally also be done with the older model.
Literature/Schematics (1) Radio Manufacturers of the 1920s, Vol 1 (Crosley ad on page 117.)

Model page created by Ernst Erb. See "Data change" for further contributors.



All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)
Here you find 1672 models, 1004 with images and 1150 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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