6137

Remote- or semi-remote-cutoff pentode designed for RF, IF, variable-mu, or controlled-gain amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: B8-21
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

The GL-6137 is a remote-cutoff pentode for high-gain RF or IF amplification, designed for dependable life and reliable service in demanding mobile and aircraft applications, with strong mechanical construction and a heater-cathode structure suited to repeated intermittent operation.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: B8-21
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

B8-21 - 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: 800000 Ω
Transconductance: 0.002 S
Max plate voltage: 300 V
Max screen voltage: 125 V
Max plate dissipation: 3 W
Max screen dissipation: 0.4 W

Remote-cutoff RF pentode.

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

Capacitance

Input capacitance
5 pF
Output capacitance
7 pF
Grid-to-plate capacitance
0.003 pF

Other

Plate voltage
250 V
ClassA
Screen-grid voltage
100 V
ClassA
Grid voltage
-3 V
ClassA
Plate current
9.2 mA
ClassA
Screen-grid current
2.6 mA
ClassA
Plate voltage
100 V
ClassA
Screen-grid voltage
100 V
ClassA
Grid voltage
-1 V
ClassA
Plate current
13 mA
ClassA
Screen-grid current
4 mA
ClassA

Characteristic

Plate resistance
800000 ohm
At250V
Transconductance
2000 uS
At250V
Plate resistance
120000 ohm
At100V
Transconductance
2350 uS
At100V

Data set 02

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

Transconductance
2350 uS
ClassA; PlateVoltage=100V; ScreenVoltage=100V
Transconductance
2000 uS
ClassA; PlateVoltage=250V; ScreenVoltage=100V
Measured with Pin
1 C
Class A; Amplifier
APin
3 C
Class A; Amplifier
GRID-NUMBER
1 V
Class A; Amplifier

Other

Plate Current
13 mA
ClassA; PlateVoltage=100V; ScreenVoltage=100V
Screen Current
4 mA
ClassA; PlateVoltage=100V; ScreenVoltage=100V
Plate Current
9.2 mA
ClassA; PlateVoltage=250V; ScreenVoltage=100V
Screen Current
2.6 mA
ClassA; PlateVoltage=250V; ScreenVoltage=100V
The GL
6137 C
Plate Voltage
300 V
Plate Dissipation ot
3 W