TubePad 6.0 Tube Chart

Quick Reference Data

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