6P14P = EL84 = 7189 = 6BQ5 tube. Matched pair
The 6P14P output pentode are miniature devices enclosed in glass bulb and are provided with a nine-pin base and an indirectly heated oxide-coated cathode.
The 6P14P output pentode are resistant to ambient temperature from -60 to +70°C and relative humidity of 95 to 98% at +40°C, as well as to mechanical loads: vibration loads up to 2.5g and multiple impact loads up to 35g.
Best Quality, the Sound is nice - authentic vintage tone
The accuracy of matching a pair no less ±95%. Matched with our HI-END tube tester L3-3.
All tubes new, military equipment and have "OTK" mark. Near equivalent: EL84 and 6BQ5.
The tube is manufactured by the Reflector, Saratov, Russia. Have date codes of 199x years.
Filament voltage, Volt: 6.3
Anode voltage, Volt: 250
2nd grid voltage, Volt: 250
Resistance in cathode circuit, Ohm: 120
Filament (heater) current, mA: 760±60
Anode current, mA: 48±8
2nd grid current, mA: 5
Reverse 1st grid current, mkA: 1
Dissipate cathode-heater current, mkA: 25
Mutual conductance, mA/V: 11.3
Output power (by RA=5.2Kohm), W: 4.2
Non-linear distortion, %: 8
Internal resistance, Kohm: -
Equivalent noise resistance, Ohm:
Inter electrode capacitance, pF:
- input: 11
- output: 7
- transfer: 0.2
Operation time over, h: 3000
Limited operating values:
Filament voltage, V: 5,7-7
Anode voltage, V: 300-400
2nd grid voltage, V: 300
Cathode - heater voltage, V: 100
Cathode current, mA: 65
Anode dissipation, W: 14
2nd grid dissipation, W: 2.2
Resistance in 1st grid circuit, MOhm: 1
Operating environmental conditions :
Acceleration of vibration loads, g: 2.5
by frequencies, Hz: 50
Acceleration of multiple impacts, g: 35
Acceleration of single impact, g: --
Ambient temperature, °С: -60 to +70
Relative humidity at up to 40°C, %: 98
All datasheets here.