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ID = 19194
Brand: Seddig RIW (RJW); Würzburg
Developer: Seddig RIW (RJW); Würzburg 
Tube type:  Triode, vacuum 
  <1925 very rare. ***
Identical to RJW_Messerkontakt
First Source (s)
1917 : Saga of the Vacuum Tube, Tyne Page 262, only mentioned that for WW1
Successor Tubes RJW  

Base Blade contact
Filament If 0.55 Ampere / Direct / Battery =
Description Siehe auch die RJW (R.J.W.) als Stiftröhre in verschiedenen Ausführungen.

Tyne page 263: "Early RJW tubes operated with a filament current of 0.55 ampere and with 80 volts on the anode. Under these conditions the amplification factor was about 8.3, the internal impedance 46.000 ohms, and the mutual conductance about 180 micromhos." 
Dimensions (WHD)
incl. pins / tip
104 x 46 x 50 mm / 4.09 x 1.81 x 1.97 inch
Weight 88 g / 3.10 oz
Tube prices 1 Tube prices (visible for members only)
Information source
RJW_Messerkontakt: EE
Ernst Erb


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