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ID = 20325
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to VT201_GPO = POVT201 = 10E/11402 = 1260 = ZA13352 = NR49 = 5A/157D = EF36 = CV1056 = CV358

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Telephony
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AC/DC

The Post Office Specification, originally met by the EF36, was absorbed in the CV1056 general specification.
It is noted that some specimens were labelled POVT201.

Dimensions (WHD)
incl. pins / tip
29 x 95 x mm / 1.14 x 3.74 x inch
Weight 26 g / 0.92 oz
Information source -- Collector info (Sammler)   

oc10_2~~5.png VT201_GPO: RTT 1974 (Franzis) 13. Auflage
Martin Renz

Just Qvigstad

Collection of



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