• Land
• USA

• Hersteller / Marke
• Crosley Radio Corp.; Cincinnati (OH)

• Jahr
• 1922

• Kategorie
• NF-(Niederfrequenz-) Verstärker oder -Mixer

• Radiomuseum.org ID
• 36641

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• Anzahl Röhren
• 2

• Röhren
• UV201 UV201

• Hauptprinzip
• NF-Verstärkung; 2 NF-Stufe(n)

• Wellenbereiche
• - ohne

• Betriebsart / Volt
• Akku und/oder Batterie / Storage Battery 6 & dry 45 Volt

• Lautsprecher
• - Dieses Modell benötigt externe(n) Lautsprecher.

• Material
• Gerät mit Holzgehäuse

• von Radiomuseum.org
• Modell: Two-Step Amplifier or 2-stage Audio Amp. [first version: front switch] - Crosley Radio Corp.;

• Form
• Tischgerät, Truhenform, meist mit Deckel (NICHT Schrägpult).

• Abmessungen (BHT)
• 11.5 x 6 x 4.875 inch / 292 x 152 x 124 mm

• Bemerkung
• This is the early version of the "Two Step Amplifier" as it was officially called in ads. It is sometimes named 2-stage audio amplifier (or Amp.). 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. 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 $.
  
  The first catalog, early 1922, tells us that the two-step Amplifier can also be bought unmounted for $ 22.50 instead of $ 25 - and that the "amplifier cabinet is designed to match up uniformly with either the CROSLEY Detector Unit, the HARKO JUNIOR or the HARKO SENIOR."

• Originalpreis
• 25.00 $ +

• Datenherkunft extern
• Ernst Erb

• Datenherkunft
• Radio Collector`s Guide 1921-1932

• Literaturnachweis
• Radio Manufacturers of the 1920s, Vol 1 (pp.113, 115)

• Literatur/Schema (1)
• Radio Broadcast, May 1922, page 81

• Literatur/Schema (4)
• Radio News (February 1922, page 725.)

• Weitere Modelle

• Hier finden Sie 1791 Modelle, davon 1048 mit Bildern und 1282 mit Schaltbildern.
  Alle gelisteten Radios usw. von Crosley Radio Corp.; Cincinnati (OH)