Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 40118
Brand: Philips Australia
Tube type:  OCTODE   Frequency converter   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to AK1_US-7pin
Similar Tubes
Other base:

Base 7-Pin-Base U7B = medium, old, USA Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect
Dimensions (WHD)
incl. pins / tip
45 x 129 x 35 mm / 1.77 x 5.08 x 1.38 inch

ak1_ux7base.png AK1_US-7pin
Peter den Boer

More ...

Just Qvigstad
Usage in Models 3= 1934

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of




This AK1 has a label around the base with the text: "This Philips valve was part of a half-ton aerial shipment handled by Imperial airways KLM, QUANTAS and New England Airways, and which established a world's record in aerial freighting for distance, weight and speed. Arrived Sydney 5/4/35 - 13 days from Europe."

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

Data Compliance More Information