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AK1_US-7pin

Information - Help 
ID = 40118
       
Country:
Australia
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:
  AK1

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_usa_7pin.jpg
AK1_US-7pin: Own collection.
Stuart Irwin

 
ak1_ux7base.png
AK1_US-7pin
Peter den Boer

 

Usage in Models 3= 1934

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


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