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ID = 30629
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Screen-grid Tetrode   Power/Output 
Identical to MKT4_5pin
Similar Tubes
Other base:
  CV1683 ; MKT4 ; VT115
Predecessor Tubes MPT4  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Sidecontact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)

Pa<8W; Typ 2.5W audio output at Va=259; Ia=32mA; Rl=8k.

Information source - - Manufacturers Literature   
MKT4_5pin: R.O.
Rudolf Osterkamp

MKT4_5pin: Fin Stewart
Fin Stewart


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