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4657

Information - Help 
ID = 23024
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 4657
Similar Tubes
Other class quality (otherwise equal):
  E499

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 48 g / 1.69 oz
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 59b
-- Collector info (Sammler)
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

4657_so.png 4657: rtt
Anonymous 10 Collector

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Just Qvigstad
4657_data.png
4657: Válvulas Miniwatt, 1954
Anonymous 15 Collector

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Collection of

 
4657_a.jpg

4657
 

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