EL95

Output pentode designed for car-radio and audio service, with pairs of heaters usable in series from a 12 V battery. Its compact power stage suits mobile audio equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B7G
Base pins: 7
Nominal heater: 6.3 V / 200 mA

Description

EL95 is a Pentode device in the supplied Philips literature. Output pentode for car-radio and audio service; two heaters may be used in series from a 12 V battery.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B7G
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 200 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 50000 Ω
Transconductance: 0.005 S
Amplification factor: 17
Max plate voltage: 250 V
Max screen voltage: 250 V
Max plate dissipation: 6 W

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

Plate voltage
250 V
Screen voltage
250 V
Grid voltage
-9 V
Plate current
24 mA
Screen current
4.5 mA
Transconductance
5000 uS
Plate resistance
50 kOhm
Amplification factor grid2/grid1
17

Capacitance

Grid-to-plate capacitance
- to 0.4 pF
Maximum
Plate capacitance
3.5 pF
Grid capacitance
5.3 pF
Grid-to-heater capacitance
- to 0.2 pF
Maximum

Other

Plate voltage
200 V
ClassA
Cathode resistor
230 ohm
ClassA; PlateVoltage=200V
Load resistance
8 kOhm
ClassA; PlateVoltage=200V
Power output
2.3 W
ClassA; PlateVoltage=200V
Plate voltage
250 V
ClassA
Cathode resistor
320 ohm
ClassA; PlateVoltage=250V
Load resistance
10 kOhm
ClassA; PlateVoltage=250V
Power output
3 W
ClassA; PlateVoltage=250V
Power output
7 W
ClassAB; PushPull; TwoTubes; PlateVoltage=250V

Data set 02

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Heater voltage
6.3 V
Published nominal value
Heater current
200 mA
Published nominal value

Data set 03

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum cathode-heater voltage
100 V