6CN7

      The 6CN7 and 8CN7 is DUPLEX-DIODE triode.The 6CN7 is a duplex-diode high-mu triode in which separata cathodes are provided for the diode and triode sections.The triode sections of the 6CN7 is electrically identical to the triode section of the 6T8.The tube is primarily intended for service as a combined horizontal phase detector and reactance tube in television recervers.The triode section may also be used in a variety of other applications,such as in sync-separator,sync-amplifter,or audioamplifier circuits.Except for heater rating,the 8CN7 is identical to the 6NC7.Both of the tubes incorporate acontrolled heater-warm-up characteristic which makes them especially suited for use in televition receivers that employ series-connected heaters.
      The 6CN7 and 8CN7 has some information about electrical.6CN7:when cathode-coated unipotential ia heater voltage,AC or DC is 6.3,the series parallel is 3.15.When heater curren is 0.3,the series parallel is 0.6.The heater warm-up time is 11 seconds.8CN7:when cathode-coated unipotential ia heater voltage,AC or DC is 8.4,the series parallel is 4.2.When heater curren is 0.225,the series parallel is 0.45.The heater warm-up time is 11 seconds.Direct interelectrode capacitancest: Triode Grid to Plate is 1.8 f.Triode input is 1.5 f.Triode output is 0.5 f.Grid to each diode plate is 0.006 f.Diode-Number 1 plate to diode cathode and heater is 3.6 f.Diode-Number 2 plate to diode cathode and heater is 3.6 f.
      The 6CN7 and 8CN7 has some information about maximum  rating.Plate voltage is 300V.Positive DC grid voltage is 0V.Plate dissipation is 1.0W.DC component is 100V.Total DC and peak is 200V.Diode current for continuous operation,each diode is 5.0M.
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