EL84 - 6P14P

PENTODE

S Ri Ra Pa Pout
11 20 5.2 12 4.5
 

Dimensions

 

General characteristics

Pentode 6P14P is used for output stages in power audio frequency amplifiers.
Cathode: indirectly heated, oxide-coated.
Operating position: any.
Nine pin base. Standart noval socket.
Mass 20 g.
 

Capacitance between electrodes in pF

On grid: 11. On plate: 7. Grid to plate: < 0 ,2.
 

Nominal Electrical characteristics (for each triode)

Heater Voltage, V
6.3
Anode Voltage, V
250
Second Grid Voltage,V
250
Resistance in cathode circuit for self-biasing, Ohm
120
Grid 1 tension (bias), V
-6.5
Heater Current, mA
760±60
Anode Current, mA
48±8
Second Grid Current, mA
< 7
Transconductance, mA/V
11.3
Plate resistance, kOhm
~30
Amplification coefficient in triode mode
20
Signal output power (by Ra=5.2kOhm) at distortion = 8% , W
4.2

 

Maximum ratings (for each triode)

Maximum heater voltage, V
6.9
Minimum heater voltage, V
5.7
Maximum anode voltage, V
300
Maximum voltage on second grid, V
250
Maximum anode dissipation, W
12
Maximum dissipation on second grid, W
2
Maximum cathode current, mA
66
Maximum cathode to heater during potential, V
100
Maximum resistance on first grid, MOhm.
1

 

Typical Characteristics
 

Anode and second grid currents versus anode potential with second grid voltage = 250V.

anode current; second grid current; maximum anode dissipation.
 
 
 

signal output power, distortion coefficient, anode and second grid currents versus true tension on first grid with voltages on anode and second grid = 250V, bias = -6V and load resistance = 5200 Ohm.

anode current; second grid current; signal output power ; distortion coefficient.
 
 
 

Typical Operation
I
II
III
IV
Anode voltage, V
250
250
250
250
Second grid voltage, V
250
250
250
250
Grid 1 voltage (bias), V
-6
-6
-
-
Resistance in cathode circuit for self-biasing, Ohm
-
-
120
120
True tension on first grid, V
3.4
4.2
3.4
4.2
Anode current, mA
50
52
46
47
Second grid current, mA
7.1
7.6
6.5
6.8
Load resistance, kOhm
5.2
4.0
5.2
4.0
Signal output power, W
4.5
5.7
4.2
5.4
distortion coefficient, %
6.5
10
8
10.7
 
 

 

Push-pull audio-amplifier with 6P14P

In this amplifier, signal output power reach 12 W at a distortion level of 1.5%.
Output transformer characteristics: winding I - 150 x 2 turns of wire 0.16 mm2; winding II - 140 turns of wire 0.7 mm2 for a 16 Ohm load. Core section: 6.25 cm2.
 

 

thanks to oldradio.al.ru The Encyclopedia of Tube Electronics