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RAL4

Information - Help 
ID = 50736
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Common type Europe tube/semicond. 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to RAL4 = AL4

Base Europe side contact base P (P8A)
Filament Vf 4 Volts / If 1.75 Ampere / Indirect / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
49 x 108 x 34 mm / 1.93 x 4.25 x 1.34 inch
Weight 42 g / 1.48 oz
Literature - - Manufacturers Literature   1-11-1937
 
ral4.jpg
RAL4
Peter den Boer

 
ral4base.png
RAL4
Peter den Boer

 


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