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6916

Pentagrid amplifier for specialized gating, mixing, amplification, and control applications, with comparatively low plate resistance for a multi-grid heptode.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 7CH
Socket code: -
Base pins: 7
Nominal heater: 6.3 V / 300 mA

Description

6916 is listed in the supplied receiving-tube handbook as a pentagrid amplifier. The published heater/filament rating is 6.3 V at 0.3 A. Maximum ratings, representative operating characteristics, and available special-service data were captured from the supplied table.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7CH
Socket code: -
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7CH - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1G1	A	G1 — Control Grid Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN2G5	A	G5 — Fifth GridGroup 7CH2 Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN2K	A	K — CathodeGroup 7CH2 Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN3H	—	H — Heater Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN4H	—	H — Heater Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN5P	A	P — Plate (Anode) Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN6G2	A	G2 — Screen GridGroup 7CH6 Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN6G4	A	G4 — Fourth GridGroup 7CH6 Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH
PIN7G3	A	G3 — Suppressor Grid Chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CH

Section ratings

1 physical section, each with unique specifications.

Section 1

Heptode

X-ray radiationInterelectrode capacitances

Plate resistance: 47000 Ω
Max plate voltage: 250 V
Max screen voltage: 125 V

Published maximum ratings, representative operating conditions, and available capacitance/rectifier data reviewed.

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

Heptode

Other

Maximum plate voltage
250 V
Published handbook rating
Maximum screen voltage
125 V
Published handbook rating
Plate voltage
150 V
ClassA
Screen voltage
150 V
ClassA
Control-grid bias
0 V
ClassA
Plate current
14 mA
ClassA
Gated amplifier plate voltage
150 V
GatedAmplifier
Gated amplifier control-grid voltage
10 V
GatedAmplifier
Gated amplifier plate current
0 mA
GatedAmplifier
Gated amplifier grid current
0 mA
GatedAmplifier
Gated amplifier grid resistor
47000 ohm
GatedAmplifier
Gated amplifier load resistance
20000 ohm
GatedAmplifier
Alternate gate plate voltage
150 V
GatedAmplifier Alternate
Alternate gate control-grid voltage
0 V
GatedAmplifier Alternate
Alternate gate plate current
5.8 mA
GatedAmplifier Alternate
Alternate gate screen current
9 mA
GatedAmplifier Alternate

Characteristic

Plate resistance
47000 ohm
Published handbook characteristic
Heater/filament voltage
6.3 V
Published heater/filament rating
Heater/filament current
300 mA
Published heater/filament rating