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ID = 42418
United States of America (USA)
Brand: Eimac (brand name)
Tube type:  Transmitting Tetrode, air cooled 
Identical to 8189 = 4PR1000A
Similar Tubes
Other characteristic (electr. data):

Base SPECIAL TUBEBASE in general Top contact with a cap.
Filament Vf 7.5 Volts / If 21.3 Ampere / Direct
Description Intended for use in pulse-modulator, pulsed-amplifier, and pulsed-oscillator service. 
Dimensions (WHD)
incl. pins / tip
132 x 234 x mm / 5.20 x 9.21 x inch
Weight 680 g / 23.99 oz

4pr1000a_eim_sock_1.png 8189: EIMAC
Götz Linss † 27.06.21

8189: EIMAC
Götz Linss † 27.06.21

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