TUBE 7378 / QE08/200

GENERAL DESCRIPTION


photo 7378 The 7378 / QE08/200 is an all-glass, beam power tetrode having a maximum plate dissipation of 100 watts at frequencies up to 30 Mc/s.

It is designed for AF or RF amplifier, oscillator, and frequency multiplier service and for single sideband applications.
picture 7378


TECHNICAL SPECIFICATIONS
ELECTRICAL
Cathode
 Heater voltage
 Heater current
Coated, unipotential
6.3 volts
3.9 amps
Amplification Factor 5.7
Transconductance 9000 μmhos
Direct Interelectrode Capacitances
 Input
 Output
 Plate to grid

30 μμf
12.7 μμf
0.9 μμf
MECHANICAL
Mounting Position Vertical or horizontal with plane of plate vertical
Cooling Radiation and convection
Maximum Operating Temperature
 Plate seal
 Bottom pins
 Glass Bulb

220°C
180°C
300°C
Net weight 7.8 ounces
Specifications may change without notice

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
Philips 8FZ 510 25
8FZ 513 25
8FZ 514 50
8FZ 503 / 8FZ 512 120
8FZ 515 120


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor


Richardson Electronics


Vacuum Tubes, Inc.


PRICE LEVEL (US$)
1 2 3 4 5 6
0 - 10 10 - 100 100 - 1000 1000 - 10,000 10,000 - 50,000 50,000 - 100,000