2 Stage Voice Amplifier D.E.5 Combination
Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)
- Land
- Grossbritannien (UK)
- Hersteller / Marke
- Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)
- Jahr
- 1925 ?
- Kategorie
- NF-(Niederfrequenz-) Verstärker oder -Mixer
- Radiomuseum.org ID
- 367966
- Anzahl Röhren
- 2
- Hauptprinzip
- NF-Verstärkung
- Wellenbereiche
- - ohne
- Betriebsart / Volt
- Akku und/oder Batterie
- Lautsprecher
- - Dieses Modell benötigt externe(n) Lautsprecher.
- Material
- Gerät mit Holzgehäuse
- von Radiomuseum.org
- Modell: 2 Stage Voice Amplifier [D.E.5 Combination] - Marconi Co. Marconiphone,
- Form
- Tischgerät, Truhenform, meist mit Deckel (NICHT Schrägpult).
- Abmessungen (BHT)
- 330 x 260 x 190 mm / 13 x 10.2 x 7.5 inch
- Bemerkung
-
Two‑stage low‑frequency audio amplifier designated Type A.2 and intended as an accessory for sets such as the Marconiphone V.2. This version is supplied for the D.E.5 valve combination and uses two Marconiphone “Ideal” inter‑valve transformers with ratios of 2.7:1 and 4:1. A three‑position switch selects the valve combination or off, and a second three‑position switch provides volume control. The amplifier is battery operated, requiring a 6‑volt accumulator for filament supply, a 9‑volt grid‑bias battery, and a high‑tension unit consisting of three 42‑volt batteries. Provides additional audio gain for headphones or external loudspeakers when used with early Marconiphone receivers.
Valves: 2 × D.E.5
Power type: Battery (A, B, C)
Transformers: Marconiphone “Ideal” 2.7:1 and 4:1
Catalogue reference: B.190 (instrument), B.194 (complete outfit)Also available as a D.E.6 Combination.
- Literaturnachweis
- - - Manufacturers Literature (Marconiphone Receiving , Amplifiers, Components and Acc Catalogue 1925, p,12)
- Autor
- Modellseite von Gary Cowans angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.
- Weitere Modelle
-
Hier finden Sie 510 Modelle, davon 349 mit Bildern und 322 mit Schaltbildern.
Alle gelisteten Radios usw. von Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)