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C643

Information - Help 
ID = 10997
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to C643 = E615
Similar Tubes
Other base:
  C643_UX4 ; C643_UY
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 0.25 Ampere / Direct / Parallel, (AC/DC)
Description

Pa <2.8W; Po <8W typical.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   R868E 1-11-1929
 
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C643: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
c643data1.png
C643: own collection
Peter den Boer


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