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5687WB

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ID = 30792
       
 
   
Tube type:  Double Triode 
Identical to 5687WB
Similar Tubes
Normally replaceable-slightly different:
  5687WA
Other class quality (otherwise equal):
  5687

Base Noval, B9A
Filament Vf 12.6 Volts / If 0.45 Ampere / Indirect / Parallel, (AC/DC)
Description Dual triode for computer use. Cathode material assures low interface resistance even after prolonged cut-off conditions. Heaters can be series connected, 12.6V, 0.4A. Note the unusual base connections, with the heater center tap to pin 8 and the anode of second triode to pin 9. 
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Tube prices 2 Tube prices (visible for members only)
Literature -- Collector info (Sammler)   
Tube Lore   
 
5687wb.jpg
5687WB: R.O.
Rudolf Osterkamp

 
no44_g_1~~1.gif
5687WB: RTT Schwandt
Günther Stabe

 


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