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ID = 47658
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Transmitting Triode, air cooled   Power/Output 
  <1925 rare.
Identical to Z2A_Philips = Z-IIA
Similar Tubes
Other base:
  Z-IIB ; Z2B_Philips
Production stop 1927
Successor Tubes TA08/10  

Base Swan-Bajonett B22=22 mm Base on each end.
Was used by Transmittertube (Radio)
Filament Vf 6 Volts / If 2.7 Ampere / Direct / Battery =

40W plate dissipation, 60mA at 500 to 1000V, gain 20. Double-ended bayonet bases.
Advertised in 1923. Most of the Z types had a matching rectifier which were a look-alike of the Z type. The rectifier for the Z2A was the ZG2A which had no grid and grid connection. The Z and Zg tubes were replaced in 1927.

Dimensions (WHD)
incl. pins / tip
60 x 150 x 60 mm / 2.36 x 5.91 x 2.36 inch
Information source -- Original prospect or advert   Di tubo in tubo, Soresini, pg 97

Just Qvigstad
Z2A_Philips: own collection
Peter den Boer

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Collection of



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