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Voltage Pentode - Sharp Cutoff (single) ·Pentode

6DE6

Sharp-cutoff high-transconductance pentode for television video-IF amplification around 40 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 7CM
Socket code: B7G
Base pins: 7
Nominal heater: 6.3 V / 300 mA

Description

The 6DE6 is a 7-pin miniature sharp-cutoff pentode designed for gain-controlled video IF amplification around 40 megacycles.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7CM
Socket code: B7G
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7CM - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1G1	A	G1 — Control Grid EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN2K	A	K — Cathode EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN3H	—	H — Heater EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN4H	—	H — Heater EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN5P	A	P — Plate (Anode) EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN6G2	A	G2 — Screen Grid EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN7G3	A	G3 — Suppressor GridGroup 7CM7 EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM
PIN7IS	A	IS — Internal ScreenGroup 7CM7 EIA chart transcription; manufacturer verification pending	Unverified EIA Base Connections, printed page 128, 7CM

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 250000 Ω
Transconductance: 0.008 S
Max plate voltage: 330 V
Max screen voltage: 330 V
Max plate dissipation: 2.3 W
Max screen dissipation: 0.55 W

Published promoted values applied where applicable; additional ratings and operating data retained as 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
200 V
ClassA
Screen voltage
150 V
ClassA
Cathode resistor
180 ohm
ClassA
Plate current
9.5 mA
ClassA
Screen current
2.8 mA
ClassA
Plate resistance
600000 ohm
ClassA
Transconductance
6200 uS
ClassA

Characteristics

Input capacitance
6.3 pF
Output capacitance
1.9 pF
Grid-to-plate capacitance
0.02 pF

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Plate Voltage
125 V
Published operating/characteristic table
Screen Voltage
125 V
Published operating/characteristic table
Grid Voltage
-9 V
Published operating/characteristic table

Characteristic

Plate Current
15.95 mA
Published operating/characteristic table
Screen Current
2 mA
Published operating/characteristic table
Transconductance
8000 uS
Published operating/characteristic table
Plate Resistance
0.25 ohm
Published operating/characteristic table

Data set 03

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

Grid-to-plate capacitance
0.015 pF
Input capacitance
6.5 pF
Output capacitance
2 pF

Other

Plate voltage
125 V
ClassA1
Screen voltage
125 V
ClassA1
Plate current
15.5 mA
ClassA1
Screen current
4.2 mA
ClassA1

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

HeaterVoltageNominal
6.3 V
HeaterCurrentNominal
300 mA
Typical Plate Voltage
125 V
ClassA
Typical Screen Voltage
125 V
ClassA

Characteristic

Plate Resistance
250000 Ohm
Transconductance
8000 uS

Data set 05

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Voltage — published value 1
6.3 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Voltage — published value 2
10 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Current
300 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
grid No.3 6 internal
6
Published datasheet value; multiple values represent separate source-table limits or conditions.
heater — published value 1
6.5
Published datasheet value; multiple values represent separate source-table limits or conditions.
heater — published value 2
6.5
Published datasheet value; multiple values represent separate source-table limits or conditions.
No.2, and heater — published value 1
2
Published datasheet value; multiple values represent separate source-table limits or conditions.
No.2, and heater — published value 2
3
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Supply Voltage
125 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid No 3
3
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Supply Voltage
125 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Cathode Resistor
56 ohm
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Resistance (Approx.)
0.25 Mohm
Published datasheet value; multiple values represent separate source-table limits or conditions.
Transconductance
8000
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Current
15.5 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Current
4.2 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
for plate µa = 20 — published value 1
20 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
for plate µa = 20 — published value 2
-9 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
and cathode resistor (ohms) = 0 — published value 1
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
and cathode resistor (ohms) = 0 — published value 2
-5.5 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 1 -Grid No.l — published value 1
1
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 1 -Grid No.l — published value 2
6
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 2 -Cathode — published value 1
2
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 2 -Cathode — published value 2
7
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 3 -Heater
3
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 4 -Heater
4
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 5 -Plate
5
Published datasheet value; multiple values represent separate source-table limits or conditions.
tween 165 and 330 volts — published value 1
165 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
tween 165 and 330 volts — published value 2
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Mith external shield JEDEC xo.g 16 connected to cathode
16
Published datasheet value; multiple values represent separate source-table limits or conditions.
Connected to Cathode at 5oc ket
5
Published datasheet value; multiple values represent separate source-table limits or conditions.
GRID—Ns2 VOLTS=125
125 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
PLATE VOLTS=125
125 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
GRID-N42 VOLTS=125
125 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
TRANSCONDUCTANCE(9m)- MICROMHOS
9 uS
Published datasheet value; multiple values represent separate source-table limits or conditions.

Other

Grid No.l to plate — published value 1
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid No.l to plate — published value 2
25 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid No.l to plate — published value 3
0.015 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
PLATE VOLTAGE
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
GRID-No.3 (SUPPRESSOR-GRID)~VOLTAGE
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
GRID-No.2 (SCREEN-GRID) SUPPLY VOLTAGE
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Positive-bias value
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
PLATE DISSIPATION
2.3 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
respect to cathode
200 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
For fixed-bias operation — published value 1
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
For fixed-bias operation — published value 2
25 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Fqr cathode-bias operation
1 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

Grid No.1-to-plate capacitance unshielded
0.025 pF
Grid No.1-to-plate capacitance shielded
0.015 pF
Grid No.1-to-other-electrodes capacitance
6.5 pF
Plate-to-other-electrodes capacitance
2 pF

Other

Plate supply voltage
125 V
ClassA
Screen-grid supply voltage
125 V
ClassA
Cathode-bias resistor
66 ohm
ClassA
Plate current
15.5 mA
ClassA
Screen-grid current
4.2 mA
ClassA
Transconductance
8000 uS
ClassA