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6C4C

General

Triode  used as a low frequency amplifier
Envelope: glass.
Octal socket.
Minimum lifetime: 500 hours.

Lead diagram


Averaged characteristics of output power from alternating grid voltage at anode voltage 250V:


General characteristics:

Filament voltage, V

6.3

 

Anode voltage, V

250

 

Bias grid voltage, V

-45

 

Filament (heater) current, A

10.015

 

 

Anode current, mA

6220

 

Mutual conductance, mA/V

5.41.4

 

Gain coefficient

4.150.35

 

Inner resistance, Ohm

840280

 

Output power at grid voltage 31 V and anode resistance 2.5 kOhm, kW, at least

2.8

 

Output power at filament voltage 5.7 V,

W, at least

2.25

 

Cathode emission current, mA, at least

140

 

Reverse grid current, mkA

<5

 

Grid insulation resistance, MOhm, at least

20

 

Anode insulation resistance, MOhm, at least

20

Limit operating values:

Maximum filament voltage, V

6.9

Minimum filament voltage, V

5.7

Maximum anode voltage, V

360

Maximum anode dissipation, W

15

Plate curve of triode