Name: 1625 Use: Heater-cathode type used as AF power amplifier and modulator and as RF power amplifier and oscillator. May be used with full input up to 60 MHz. For class C telegraphy operation at 80 MHz, plate voltage and input should be reduced to 80 % of maximum ratings; at 125 MHz to 55 %. Class C telegraphy maximum plate dissapation, CCS 25 Watts, ICAS 30 Watts. Notes: Requires a 7-pin Loctal socket and may be operated in any position. Plate shows no color when tube is operated at maximum CCS or ICAS ratings. |
1625 Beam Power Tube Characteristics Data Source. . . . . . . . . TT-5 Heater or Filament Voltage . 12.6 volts Heater or Filament Current . 0.45 amperes EIA Base . . . . . . . . . . 5AZ Substitutes. . . . . . . . . 807 (different base) For Characteristics and Typical Operation, See 807 |
Capacitances and Design Maximum Values: Section. . . . . . . . . Pentode Cin. . . . . . . . . . . . 12 pf Cout . . . . . . . . . . . 7 pf Cgp. . . . . . . . . . . . 0.2 pf Plate Dissipation. . . . . 30 watts Screen Dissipation . . . . 3.5 watts Maximum Plate Voltage. . . 750 volts Maximum Screen Voltage . . 300 volts Maximum Frequency. . . . . 60 MHz |
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