Two-Step Amplifier or 2-stage Audio Amp. first version: front switch
Crosley Radio Corp.; Cincinnati (OH)
- Produttore / Marca
- Crosley Radio Corp.; Cincinnati (OH)
- Anno
- 1922
- Categoria
- Amplificatore audio o mixer audio
- Radiomuseum.org ID
- 36641
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- Numero di tubi
- 2
- Principio generale
- Amplificatore audio; 2 Stadi BF
- Gamme d'onda
- - senza
- Tensioni di funzionamento
- Batterie (di accumulatori e/o a secco) / Storage Battery 6 & dry 45 Volt
- Altoparlante
- - Questo apparecchio richiede altoparlante/i esterno/i.
- Materiali
- Mobile in legno
- Radiomuseum.org
- Modello: Two-Step Amplifier or 2-stage Audio Amp. [first version: front switch] - Crosley Radio Corp.;
- Forma
- Soprammobile a cassapanca o cassetta, solitamente con coperchio (NON a leggio)
- Dimensioni (LxAxP)
- 11.5 x 6 x 4.875 inch / 292 x 152 x 124 mm
- Annotazioni
- 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."
- Prezzo nel primo anno
- 25.00 $ +
- Fonte esterna dei dati
- Ernst Erb
- Fonte dei dati
- Radio Collector`s Guide 1921-1932
- Bibliografia
- Radio Manufacturers of the 1920s, Vol 1 (pp.113, 115)
- Letteratura / Schemi (1)
- Radio Broadcast, May 1922, page 81
- Letteratura / Schemi (4)
- Radio News (February 1922, page 725.)
- Altri modelli
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In questo link sono elencati 1784 modelli, di cui 1047 con immagini e 1274 con schemi.
Elenco delle radio e altri apparecchi della Crosley Radio Corp.; Cincinnati (OH)
Collezioni
Il modello Two-Step Amplifier or 2-stage Audio Amp. fa parte delle collezioni dei seguenti membri.