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Power - Pentode (NOT beam) ·Pentode

6AQ5L

Long-life, low-failure-rate power pentode for dependable medium-power audio-output applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: E7-1
Socket code: B7G
Base pins: 7
Nominal heater: 6.3 V / 360 mA

Description

Long-life, low-failure-rate power amplifier pentode for dependable medium-power applications.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: E7-1
Socket code: B7G
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 360 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

E7-1 - 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: 80000 Ω
Transconductance: 0.0034 S

Promoted characteristic values are from the supplied datasheet; additional operating points and ranges are preserved in TUBE_SECTION_PARAMETER.

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

1965 Ericsson Longlife

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate supply voltage
130 V
ClassA
Screen-grid supply voltage
130 V
ClassA
Cathode bias resistor
200 Ohm
ClassA
Plate current
23 mA
ClassA
Screen-grid current
2 mA
ClassA
Load resistance
6000 Ohm
ClassA
Power output
1 W
ClassA
Total harmonic distortion
7 %
ClassA
Plate supply voltage
180 V
ClassA
Screen-grid supply voltage
180 V
ClassA
Plate current
32.5 mA
ClassA
Load resistance
8000 Ohm
ClassA;Va=180V
Power output
2.1 W
ClassA;Va=180V
Transconductance minimum
2600 uS
Transconductance maximum
4200 uS

Characteristics

Transconductance
3400 uS
ClassA
Plate resistance
0.08 MOhm
ClassA
Transconductance
3900 uS
ClassA;Va=180V