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ID = 15532
Great Britain (UK)
Tube type:  Triode, vacuum   Power/Output 
Identical to ACP = TT4
Similar Tubes
Normally replaceable-slightly different:
  104V ; CV2815 ; ML4
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC

Pa<4W,Va<200; Ia = 20mA at Vg=-13.5, Ra=2800, gm=3.6.

The correct designation is AC/P

Information source History of the British Radio Valve to 1940   p. 146
Babani, International Radio Tube Encyclopaedia   p. 48 & 49
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

7_63.png ACP: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
ACP: Mazda DataSheet
Franz Scharner

More ...
Usage in Models 2= 1932

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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