GM5B GM-5B 3CX300 Power Triode Vacuum Tube #2

Description

GM5B / GM-5B
full equivalent
3CX300A1
Audio Power Triode Vacuum Tube.
Application: in series anode modulation circuits and electronic voltage regulators.
Envelope: metal-ceramic.
Cooling: forced air.
Mass 200 g.
NOS, unused.
General characteristics
Filament voltage, Volt
6.3
Anode voltage, Volt
600
Grid voltage, Volt
30
Filament (heater) current, A
2.65±0.2
Anode current, mA
no less than 500
Reverse grid current, mA
no more than 30
Grid voltage
-30±10 Volt
Grid cut-off voltage, Volt
no more than -400
Mutual conductance
20±6 mA/Volt
Gain coefficient
more than 6
Warm-up time
1.5 min
Inter electrode capacitance, pF:
input
£
25
output
£
1
transfer
£
10
Operation time, h
more than 1000
Limited operating values
Cathode current, steady component
250 mA
Peak cathode current
500 mA
Filament voltage, V
6 to 6.6
Peak anode voltage, V
2200
Grid voltage, V
-400
Anode dissipation, W
300
Grid dissipation, W
1
View ALL products in Store