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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
Altre immagini: scorri con la barra rossa.
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.
 
Paese:  USA (Stati Uniti d'America)
Produttore / Marca:  Crosley Radio Corp.; Cincinnati (OH)
Anno: 1922 Categoria: Radio (o sintonizzatore del dopoguerra WW2)
Valvole 3: UV200 UV201 UV201
Principio generale A circuiti accordati (amplif. diretta) senza reazione
N. di circuiti accordati 1 Circuiti Mod. Amp. (AM)
Gamme d'onda Solo onde medie (OM).
Particolarità
Tensioni di funzionamento Batterie (di accumulatori e/o a secco) / 6 & 22.5 & 45 Volt
Altoparlante - Questo apparecchio richiede altoparlante/i esterno/i.
Potenza d'uscita
Radiomuseum.org Modello: Harko Senior Audion Receiver + Two-Step Amplifier Combination [first version: front switch] - Crosley Radio Corp.;
Materiali Mobile in legno
Forma Soprammobile a cassapanca o cassetta, solitamente con coperchio (NON a leggio)
Annotazioni 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 $.
Prezzo nel primo anno 41.00 $
Letteratura / Schemi (1) Radio Broadcast, May 1922, p. 81
Letteratura / Schemi (2) Radio Digest Illustrated, 1922 Jul. 08, p. 7

Modello inviato da Ernst Erb. Utilizzare "Proponi modifica" per inviare ulteriori dati.



Elenco delle radio e altri apparecchi della Crosley Radio Corp.; Cincinnati (OH)
In questo link sono elencati 1680 modelli, di cui 1006 con immagini e 1158 con schemi.




  
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