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201A_B4

Information - Aide 
ID = 54956
       
Pays:
Pays-Bas
Fabricant: Philips; Eindhoven (tubes international!); Miniwatt
Type:  Triode, vacuum   Audio Frequency 
  <1925 rare
Identique à 201A_B4
Similaires
Différent culot :
  201A_Philips

Culot Europe 4-Pin B4 (Eu A, E, 4A) 1914
Utilisé par Radio/TV-reception etc.
Chauffage Vf 5 Volt / If 0.25 Ampère / Direct / Battery =
Description

Some Philips tubes sold in Australia have the L & H (Lawrence and Hansen Pty Ltd) logo on the bulb. This company was the original distributor of Philips products until 1926, when Philips opened their own offices..

 
Dimensions
(l x h x p)
incl.pins/tip
45 x 106 x 35 mm / 1.77 x 4.17 x 1.38 inch
Bibliographie - - Manufacturers Literature   1924
-- Collector info (Sammler)   

b201a_sock.png 201A_B4: RFJ
Roy Johnson

Plus d'infos ...

Just Qvigstad
ph201adata.png
201A_B4: own collection
Peter den Boer † 2025

Collection de

 
philips_b201a.jpg

201A_B4
 

[rmxtube-fr, noindex]
  

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