Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
OperatingFrequency
40 MHz
VideoIF
Voltage Pentode - Sharp Cutoff (single) ·Pentode
4DE6
Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 4.2 V / 450 mA
Description
Sharp-cutoff miniature pentode for gain-controlled television picture-IF stages around 40 MHz and VHF tuner RF amplification.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 4.2 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
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
- 250000 Ω
- Transconductance
- 0.005 S
- Max plate voltage
- 330 V
- Max screen voltage
- 330 V
- Max plate dissipation
- 1.7 W
- Max screen dissipation
- 0.55 W
Reference/equivalence-only source: ratings/characteristics for this section are not reproduced; missing promoted values intentionally not inferred from the external 6DE6 datasheet.
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 02
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Pentode
Capacitance
Grid-to-plate capacitance maximum
0.025 pF
Section1
Input capacitance
6.5 pF
Section1
Output capacitance
2 pF
Section1
Other
Plate voltage
125 V
VideoIF
Screen voltage
125 V
VideoIF
Cathode-bias resistor
56 Ω
VideoIF
Plate current
15.5 mA
VideoIF
Screen current
4.2 mA
VideoIF
Characteristic
Plate resistance
0.25 MΩ
Section1
Transconductance
9000 µS
Section1
Transconductance at cutoff-bias condition
700 µS
Section1
Data set 03
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Heater Voltage
4.2 V
Heater Current
450 mA
Data set 04
1971 RCA HB3 Binder 4 of 7
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Heater Current
420 mA to 480 mA
Published nominal ± tolerance
Heater Voltage
4.2 V
At heater current 0.45 A
Warm-Up Time
11 s
Average
Plate Voltage
330 V
Inherited from explicitly referenced 6-volt parent type; heater variant
Screen Supply Voltage
330 V
Inherited from explicitly referenced 6-volt parent type; heater variant
Plate Dissipation
2.3 W
Inherited from explicitly referenced 6-volt parent type; heater variant
Screen Dissipation
0.55 W
Inherited from explicitly referenced 6-volt parent type; heater variant
Characteristics
Transconductance
8000 µS
Inherited from explicitly referenced 6-volt parent type; heater variant
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Peak value +300
-5500 V
Published in approved 4DE6 target entry; Section1
Average value -f-100
900 V
Published in approved 4DE6 target entry; Section1
Tube Voltage Drop for plate current of
350 mA
Published in approved 4DE6 target entry; Section1
Tube Voltage Drop for plate current of 350 mA
34 V
Published in approved 4DE6 target entry; Section1
frequency in the order of
40 MHz
Published in approved 4DE6 target entry; Section1
Heater Voltage (ac/dc) 4.2
6.3 V
Published in approved 4DE6 target entry; Section1
Heater Current 0.45
300 mA
Published in approved 4DE6 target entry; Section1
Heater Warm-up Time (Average)
11 seconds
Published in approved 4DE6 target entry; Section1
Plate Voltage
330 V
Published in approved 4DE6 target entry; Section1
Grid-No. 3 (Suppressor-Grid) Voltage, Positive value
0 V
Published in approved 4DE6 target entry; Section1
Grid-No.2 (Screen-Grid) Supply Voltage
330 V
Published in approved 4DE6 target entry; Section1
Grid-No. I (Control-Grid) Voltage, Positive-bias value
0 V
Published in approved 4DE6 target entry; Section1
Plate Dissipation
2.3 W
Published in approved 4DE6 target entry; Section1
For grid-No.2 voltages up to
165 V
Published in approved 4DE6 target entry; Section1
For grid-No.2 voltages up to 165 volts
0.55 W
Published in approved 4DE6 target entry; Section1
For grid-No.2 voltages between 165 and
330 V
Published in approved 4DE6 target entry; Section1
Grid-No.l Voltage (Approx.) for plate current of 20 fiA
-9 V
Published in approved 4DE6 target entry; Section1
Capacitance
Grid No.3, and Internal Shield 6.5
6.5 pF
Published in approved 4DE6 target entry; Section1
and Internal Shield
2 pF
Published in approved 4DE6 target entry; Section1
Characteristic
Plate Supply Voltage
125 V
Published in approved 4DE6 target entry; Section1
Cathode-Bias Resistor
66 Ω
Published in approved 4DE6 target entry; Section1
Plate Resistance (Approx.)
0.25 MΩ
Published in approved 4DE6 target entry; Section1
Transconductance
8000 µS
Published in approved 4DE6 target entry; Section1
of
0 Ω
Published in approved 4DE6 target entry; Section1
Plate Current
15.5 mA
Published in approved 4DE6 target entry; Section1
Heater Voltage (ac/dc) 6.3 9.7
13 V
Published in approved 4DE6 target entry; Section1
Heater Current 0.9 0.6
450 mA
Published in approved 4DE6 target entry; Section1
Heater Warm-up Time (Average) — 11
11 seconds
Published in approved 4DE6 target entry; Section1