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ID = 14323
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Triode, vacuum 
Identical to HL1320 = VT100B_GPO
Similar Tubes
Normally replaceable-slightly different:
  4D1_Brimar ; DA ; VT100_GPO
Other class quality (otherwise equal):

Base British-7-Pin, old (M7A) (Codex=Na)
Filament Vf 13 Volts / If 0.2 Ampere / Parallel / series AC/DC
Literature Taschenbuch zum Röhren-Codex 1948/49   
HL1320: own collection
John Koster

HL1320: Telefunken Werkstattbuch
Wolfgang Bauer

HL1320: own collection
Peter den Boer

Usage in Models 3= 1934 ; 1= 1935? ; 1= 1935

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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