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Harko Senior Audion Receiver + Two-Step Amplifier Combination first version: front switch

Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1170483) Radio Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 857504) Radio
Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1199651) Radio Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1199652) Radio
Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1199653) Radio Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1199654) Radio
Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1440563) Radio
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Harko Senior Audion Receiver + Two-Step Amplifier Combination; Crosley Radio Corp.; (ID = 1170483) Radio
Crosley Radio Corp.;: Harko Senior Audion Receiver + Two-Step Amplifier Combination [Radio] ID = 1170483 933x553
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For model Harko Senior Audion Receiver + Two-Step Amplifier Combination first version: front switch, Crosley Radio Corp.; Cincinnati (OH):
Picture from a Crosley ad in 'Radio Broadcast' Vol.1, No.1, May 1922, page 81.
 
País:  Estados Unidos
Fabricante / Marca:  Crosley Radio Corp.; Cincinnati (OH)
Año: 1922 Categoría: Radio - o Sintonizador pasado WW2
Válvulas 3: UV200 UV201 UV201
Principio principal RFS sin reacción
Número de circuitos sintonía 1 Circuíto(s) AM
Gama de ondas OM (onda media) solamente
Especialidades
Tensión de funcionamiento Baterías recargables o pilas / 6 & 22.5 & 45 Volt
Altavoz - Este modelo usa altavoz exterior (1 o más).
Potencia de salida
de Radiomuseum.org Modelo: Harko Senior Audion Receiver + Two-Step Amplifier Combination [first version: front switch] - Crosley Radio Corp.;
Material Madera
Forma Sobremesa, caja, normalmente con tapa (panel no inclinado).
Anotaciones This is the early version of the "Harko Senior Audion Receiver + Two-Step Amplifier" combination. This combination was at least possible in February 1922 - with the first version of both sets - but we have the official ad for the combination in May 1922 as "Complete Receiving Station" in "Radio Broadcast" Vol. 1, No.1, page 81. The Harko Senior Audion Receiver, a "combined tuner and audion detector" has front switch and lid. In the middle of the two knobs for the two stations, there is a front panel switch to select one or two stages of amplification. Box has overhanging lid. By the way, there are at least three different versions regarding engraving: First version February 1922 with market introduction: straight without special logo: "Crosley two step amplifier" in one line. Second version May 1922 - engraving in two lines. Third version: Later or on the same time it was available without any engraving for the name. In 1923 it was not anymore on the market.

Here is a link to some sources for this model.
Later models have no such switch on the front and are a bit cheaper. The lid is integrated and without overhang. Those later models could be bought with or without engraving "Crosley Cincinnati TWO STEP AMPLIFIER" (including the logo) - with a price difference of one $.
Precio durante el primer año 41.00 $
Documentación / Esquemas (1) Radio Broadcast, May 1922, p. 81
Documentación / Esquemas (2) Radio Digest Illustrated, 1922 Jul. 08, p. 7

Modelo creado por Ernst Erb. Ver en "Modificar Ficha" los participantes posteriores.



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