6AR5

Miniature audio power pentode delivering approximately 3.4 W single-ended Class A output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 6CC
Socket code: B7G
Base pins: 7
Nominal heater: 6.3 V / 400 mA

Description

6AR5 is described in the supplied Tung-Sol datasheet as a miniature power-output pentode. Published maximum ratings and core section characteristics were extracted into the technical tables.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 6CC
Socket code: B7G
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 400 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6CC - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1G1	A	G1 — Control Grid Source code G1; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN2G3	A	G3 — Suppressor GridGroup 6CC2 Source code G3; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN2K	A	K — CathodeGroup 6CC2 Source code K; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN3H	—	H — Heater Source code H; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN4H	—	H — Heater Source code H; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN5P	A	P — Plate (Anode) EIA chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC
PIN6G2	A	G2 — Screen Grid EIA chart transcription; independent manufacturer confirmation pending	Unverified EIA Base Connections, printed page 128, 6CC

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 65000 Ω
Transconductance: 0.006 S
Max plate voltage: 250 V
Max screen voltage: 250 V
Max plate dissipation: 8.5 W
Max screen dissipation: 2.5 W

Promoted from the printed maximum-rating/characteristic columns; operating points retained as section parameters.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate voltage
250 V
ClassA
Screen voltage
250 V
ClassA
Control-grid voltage
-18 V
ClassA
Plate current
32 mA
ClassA
Screen current
5.5 mA
ClassA
Load resistance
7600 Ω
ClassA
Power output
3.4 W
ClassA

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Heater voltage
6.3 V
Heater current
400 mA
Plate voltage
250 V
ClassA1
Grid 2 voltage
250 V
ClassA1
Power output
3.2 W
ClassA1
Total harmonic distortion
7 percent
ClassA1

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

Heater voltage
6.3 V
Published table
Heater current
400 mA
Published table
Transconductance
6000 µS
ClassA

Other

Plate voltage
250 V
ClassA
Screen voltage
250 V
ClassA
Zero-signal plate current
34 mA
ClassA
Maximum-signal plate current
35 mA
ClassA
Maximum-signal screen current
10 mA
ClassA