radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

BT4

Information - Help 
ID = 56085
       
Country:
Germany
Brand: Rost, Dr. Rudolf; Hannover
Tube type:  SEMICONDUCTOR, general   Audio Frequency 
Identical to BT4

Base Wires
Description Aufbau: Modul (4 Trans., __ Widerst., __ Kond., 1 Poti);
Form: Steckbaustein, gekapselt;
Typ: 3-stufiger Tonverstärker mit Gegentaktendstufe für Lautsprecherwiedergabe, regelbare Lautstärke. Mittenanschluss für AÜ ist vorhanden;
Daten: Ub: __ V; Ib: __ mA; N: __ mW;
Varianten: BT4n = niederohmiger, BT4h = hochohmiger Eingang - 
Dimensions (WHD)
incl. pins / tip
40 x 55 x 30 mm / 1.57 x 2.17 x 1.18 inch
Weight 15 g / 0.53 oz
Information source -- Original prospect or advert   Dr.Rost

 
rost_bt4.jpg

 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information