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CK5687WA

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ID = 35837
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Double Triode 
Identical to CK5687WA = CV5188 = 5687WA
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Other class quality (otherwise equal):
  CK5687

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.8 Ampere / Indirect
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.
High-rel version of CK5687. 
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Information source - - Manufacturers Literature   
Tube Lore (I)   
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ck5687wa_so.png CK5687WA: rtt
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