- Produttore / Marca
- Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York
- Anno
- 1917–1925
- Categoria
- Altoparlante, cuffia o auricolare
- Radiomuseum.org ID
- 229256
Bild bearbeitet
- Gamme d'onda
- - senza
- Tensioni di funzionamento
- Batterie (di accumulatori e/o a secco) / 6 Volt
- Altoparlante
- Tromba / Ø 3.5 inch = 8.9 cm
- Materiali
- Mobile di metallo
- Radiomuseum.org
- Modello: Motor Dictograph - Dictograph Products Co.
- Forma
- Diverse forme (descritte nelle note).
- Dimensioni (LxAxP)
- 0 x 10 x 0 inch / 0 x 254 x 0 mm
- Annotazioni
-
The "Motor Dictograph" is a system for closed-cabin driver/passenger communication and was first displayed in the 1917 Salon and Shows.
It comprises a carbon microphone built into the passenger cabin, and a horn speaker which is mounted near the driver seat.
The horn has a height of 10"; the typeplate on its base reads 6 Volt - 2 Amp.
It was still in use in 1925, when a Minerva AF was equipped with the system.
- Bibliografia
- Automotive Industries, Volume 53, 1919, P.396
- Letteratura / Schemi (1)
- Radio Horn Speaker Encyclopedia, Paul, 1986
- Altri modelli
-
In questo link sono elencati 30 modelli, di cui 28 con immagini e 0 con schemi.
Elenco delle radio e altri apparecchi della Dictograph Products Co. International (General Acoustic; Acousticon; Turner) ; New York