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4039A

Information - Help 
ID = 55374
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Thyratron 
Identical to 4039A

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Industrial
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description Ia <100mA mean, 200mA peak; Va <500 peak.
Mercury Vapour tube. 30 second delay before applying Anode voltage. 
Dimensions (WHD)
incl. pins / tip
51 x 121 x mm / 2.01 x 4.76 x inch
Information source - - Manufacturers Literature   
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brimar_radio_valves_1936_pins~~15.png 4039A: Brimar Radio Valves 1936
Adrian Riesen


Just Qvigstad
4039a_brimar_radio_valves_1936_p1_data1_caution_mercury_vapour.png
4039A: Brimar Radio Valves 1936
Adrian Riesen

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4039a.jpg

4039A
 

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