1T4
Remote-Cutoff Pentode
Characteristics
Data Source. . . . . . . . . RC-15
Heater or Filament Voltage . 1.4 DC volts
Heater or Filament Current . 0.05 amperes
EIA Base . . . . . . . . . . 6AR
Outline. . . . . . . . . . . 5-2
Prefered Substitutes . . . . 1L4
Substitutes. . . . . . . . . 1U4
Miniature type used in lightweight, compact, portable, battery-operated receivers as rf or if amplifier. Requires miniature 7-contact socket and may be mounted in any position.
Capacitances and Design Maximum Values
Section. . . . . . . . . Pentode
Cin. . . . . . . . . . . . 3.6 pf
Cout . . . . . . . . . . . 7.5 pf
Cgp. . . . . . . . . . . . 0.01 pf
Maximum Plate Voltage. . . 90 volts
Maximum Screen Voltage . . 67.5 volts
Average Plate Characteristics
Typical Operation
as a Receiving Tube
Description Vp Vg VgMax Vs Is IsMax Ip IpMax Rp TC AF Zl PO
Class A Amplifier 90 0 - 67.5 1.4 - 3.5 - 500K 900 - - -
Class A Amplifier 90 0 - 45 0.65 - 1.8 - 800K 750 - - -
Class A Amplifier 67.5 0 - 67.5 1.5 - 3.4 - 250K 875 - - -
Class A Amplifier 45 0 - 45 0.7 - 1.7 - 350K 700 - - -
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