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4H1

Information - Help 
ID = 1248
       
Country:
Germany
Brand: Loewe-(Opta); Deutschland
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 4H1 = AF7
First year 1936 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe side contact base P (P8A) (Codex=Sf)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect / Parallel, (AC/DC)
Description

4H1, Bezeichnung von Loewe für die AF7.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
  typische_schautung_des_4h1_einkreiser_audion_von_loewe_opta_138w.png
  4H1: Loewe Schautung
Anonymous 1038 Collector
 
4h1_01.jpg
4H1: Collection TL
Thomas Lebeth

 
s_30_g.gif
4H1: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
4h1_spec.png
4H1: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1936? ; 2= 1936 ; 2= 1937 ; 1= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6


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