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ID = 34867
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Transmitting Triode, air cooled   Power/Output 
  <1925 very rare. ***
Identical to Z-IIA = Z2A_Philips
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 =

The Z IIA was a 1924 designation and was redesignated Z2A in 1925. Most of the Z types had a matching rectifier which were a look-alike of the Z type. The rectifier for the Z IIA was the ZG IIA which had no grid and grid connection. For further data of the Z IIA, see Z2A. The Z and Zg tubes were replaced in 1927. It is possible that the Philips HEEMAF transmitting tube of May 1920 is a predecessor of the Z-IIA as they are identical in design.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
60 x 150 x 60 mm / 2.36 x 5.91 x 2.36 inch
Weight 64 g / 2.26 oz
Information source -- Collector info (Sammler)   
- - Manufacturers Literature   R38H 1-2-1925 & E732 - 15-4-'24

Just Qvigstad
Z-IIA: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

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