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RH1

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ID = 8194
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to RH1
First Source (s)
Oct.1927 : 70 Years of Radiotubes and V.

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.2 Ampere / Direct / Specified voltage AC/DC
Description

BTH Branded in 1927

 
Information source British Radio Valves - The Classic Years: 1926-1946   Supplement, p. 141
History of the British Radio Valve to 1940   Page 168
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren


Just Qvigstad
rh1bthdocr.png
RH1: Miniwatt Livret de comparaison
Patrice Zeissloff

Usage in Models 2= 1929?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
 
rh1bthph7s.jpg

RH1
 

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