The 5V4G  (P/N 154-008,154-0008-00) is a dual rectifier vacuum tube (two diodes with their cathodes internally connected).

It is used in the power supply of the 104/104A, 511A, 514 and in the 160.

Key Specifications

Heater 5 V, 2 A
Max. Anode Voltage 1400 V
Max. Anode Current 525 mA (each anode)
Voltage Drop 25 V @ 175 mA (each anode)
Typical Operation Full-wave rectifier, capacitor input: 375 Vp-p max. each anode, 175 mA max. DC output

Links

Used in

Some instruments using part 5V4G

Instrument Manufacturer Class Model Description Introduced
104 Tektronix Pulse generator 104 Square wave generator / voltage calibrator 1948
104A Tektronix Pulse generator 104A Square wave generator / voltage calibrator 1950
160 Tektronix Oscilloscope 160 Modular Oscilloscope 1952
511A Tektronix Oscilloscope 511A 10 MHz Tube scope 1948
514 Tektronix Oscilloscope 514 10 MHz scope 1949

Pictures

Sylvania 5V4G

RCA 5V4G