Use:
Glass tube type used as an RF amplifier in dry-battery-operated receivers.
Notes: Requires a 4- pin socket.
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Name: 22 Use: Glass tube type used as an RF amplifier in dry-battery-operated receivers. Notes: Requires a 4- pin socket. |
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22 Sharp-Cutoff Tetrode Data Source. . . . . . . . . "RC-10. Heater or Filament Voltage . 2.5 volts Heater or Filament Current . 3.3 amperes EIA Base . . . . . . . . . . 4K Substitutes. . . . . . . . . None |
Capacitances and Design Maximum Values: Section . . . . . . . . . . Tetrode C/in. . . . . . . . . . . . 3.2 pf C/out . . . . . . . . . . . 12 pf C/gp. . . . . . . . . . . . 0.025 pf Maximum Plate Voltage . . . 135 volts Maximum Screen Voltage. . . 67.5 volts |
Typical Operation as a Receiving Tube Description Vp Vg VgMax Vs Is IsMax Ip IpMax Rp TC AF Zl PO ========================================================================== Class A Amplifier 135 -1.5 - 67.5 1.3 - 3.2 - 600K 500 300 - - Class A Amplifier 135 -1.5 - 45 0.5 - 1.5 - 850K 350 290 - - |