Beam Power Tube
The 1625 Vacuum tube is a heater-cathode type used as
an AF power amplifier and modulator and as an RF power
amplifier and oscillator. It 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.
This tube requires a medium 7-contact socket and may be
operated in any position. The plate shows no color when
the tube is operated at maximum CCS or ICAS ratings.
Electrical Data:
Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.45 A
Preferred Substitutes ............... 1625, VT-136