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HL1320

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ID = 14323
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Triode, vacuum   Audio Frequency 
Identical to HL1320 = VT100B_GPO
Similar Tubes
Normally replaceable-slightly different:
  4D1_Brimar ; DA ; VT100_GPO
Other class quality (otherwise equal):
  CV3502
Base British-7-Pin, old (M7A) (Codex=Na) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Information source History of the British Radio Valve to 1940   p. 140 & 178
Babani, International Radio Tube Encyclopaedia   p. 110 & 111
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
513.png HL1320: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		hl1320.png
HL1320: own collection
Peter den Boer
Usage in Models 4= 1934 ; 1= 1935? ; 1= 1935
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of

John Koster (NL)
Tomasz Szczesniak (PL)
 
hl1320.jpg

HL1320
 
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