Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Service
Vertical deflection oscillator
SECTION 2
Triode
Application
Service
Vertical deflection amplifier
Power - TV Vertical Output ·Triode-Triode
6CS7
Dual triode intended for television vertical-deflection service, combining oscillator/driver and power-output functions where applicable. Manufacturer data emphasize vertical-sweep operation, pulse-voltage capability, and the stronger section’s current and dissipation requirements.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9EF
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 600 mA
Description
Dissimilar medium-mu dual triode used as a vertical-deflection oscillator and vertical-deflection amplifier in television receivers.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 9EF
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9EF - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1Base Pin | B | P — Plate (Anode) Original chart label: 2P; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN3Base Pin | B | G1 — Control Grid Original chart label: 2G1; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN4Base Pin | — | H — Heater Original chart label: H; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN5Base Pin | — | H — Heater Original chart label: H; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN6Base Pin | A | P — Plate (Anode) Original chart label: 1P; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN7Base Pin | A | G1 — Control Grid Original chart label: 1G1; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN8Base Pin | A | K — Cathode Original chart label: 1K; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
| PIN9Base Pin | B | K — Cathode Original chart label: 2K; manufacturer verification pending | Unverified EIA Base Connections, printed page 132, 9EF |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7700 Ω
- Transconductance
- 0.0022 S
- Amplification factor
- 17
- Max plate voltage
- 500 V
- Max plate dissipation
- 1.25 W
- Max cathode current
- 20 mA
Published promoted fields populated from printed headings.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 3440 Ω
- Transconductance
- 0.0044 S
- Amplification factor
- 15
- Max plate voltage
- 500 V
- Max plate dissipation
- 6.5 W
- Max cathode current
- 30 mA
Published promoted fields populated from printed headings.
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
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Section1Transconductance
2200 uS
Section1
SECTION 2
Triode
Characteristic
Section2Transconductance
4400 uS
Section2
Data set 03
1965 Westinghouse Data Book
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater Voltage
6.3 V
Heater Current
600 mA
Other
Maximum Plate Voltage
500 V
Section1
Plate Voltage
200 V
Section1; ClassA
Grid Voltage
-7 V
Section1; ClassA
Plate Current
5 mA
Section1; ClassA
SECTION 2
Triode
Other
Maximum Plate Voltage
500 V
Section2
Maximum Peak Positive Plate Voltage
2200 V
Section2; Pulse
Maximum Plate Dissipation
6.5 W
Section2
Plate Voltage
250 V
Section2; ClassA
Grid Voltage
-8 V
Section2; ClassA
Plate Current
30 mA
Section2; ClassA
Data set 04
1966 Tung Sol Electronic Tubes 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
250 V
ClassA
Grid voltage
-8.5 V
ClassA
Maximum peak cathode current
70 mA
Characteristic
Plate current
10.5 mA
ClassA
SECTION 2
Triode
Other
Plate voltage
250 V
ClassA
Grid voltage
-10.5 V
ClassA
Maximum peak positive pulse plate voltage
2200 V
Maximum peak cathode current
105 mA
Characteristic
Plate current
19 mA
ClassA
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage (ac/dc) 6.3
8.4 V
Published in approved 8CS7 target datasheet entry; Section1
Heater Current 0.6
450 mA
Published in approved 8CS7 target datasheet entry; Section1
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 8CS7 target datasheet entry; Section1
DC Plate Voltage 500
600 V
Published in approved 8CS7 target datasheet entry; Section1
Peak Negative-Pulse Grid Voltage 400
250 V
Published in approved 8CS7 target datasheet entry; Section1
Peak Cathode Current 70
105 mA
Published in approved 8CS7 target datasheet entry; Section1
Average Cathode Current 20
30 mA
Published in approved 8CS7 target datasheet entry; Section1
Plate Dissipation 1.25
8.6 W
Published in approved 8CS7 target datasheet entry; Section1
Grid-Circuit Resistance 2.2
2.2 MΩ
Published in approved 8CS7 target datasheet entry; Section1
# Pulse duration must not exceed 15% of a vertical scanning cycle (
2.5 milliseconds
Published in approved 8CS7 target datasheet entry; Section1
Capacitance
Grid to Plate 2.6
2.6 pF
Published in approved 8CS7 target datasheet entry; Section1
Grid to Cathode and Heater 1.8
3 pF
Published in approved 8CS7 target datasheet entry; Section1
Plate to Cathode and Heater 0.5
0.5 pF
Published in approved 8CS7 target datasheet entry; Section1
Characteristic
Plate Voltage 250
250 V
Published in approved 8CS7 target datasheet entry; Section1
Grid Voltage —8.5
-10.5 V
Published in approved 8CS7 target datasheet entry; Section1
Plate Resistance (Approx.) 7700
3450 Ω
Published in approved 8CS7 target datasheet entry; Section1
2200
4500 µS
Published in approved 8CS7 target datasheet entry; Section1
10.5
19 mA
Published in approved 8CS7 target datasheet entry; Section1
Plate Current for grid voltage of
-16 V
Published in approved 8CS7 target datasheet entry; Section1
Plate Current for grid voltage of --16 volts
3 mA
Published in approved 8CS7 target datasheet entry; Section1
SECTION 2
Triode
Other
Heater Voltage (ac/dc) 6.3
8.4 V
Published in approved 8CS7 target datasheet entry; Section2
Heater Current 0.6
450 mA
Published in approved 8CS7 target datasheet entry; Section2
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 8CS7 target datasheet entry; Section2
DC Plate Voltage 500
600 V
Published in approved 8CS7 target datasheet entry; Section2
Peak Negative-Pulse Grid Voltage 400
250 V
Published in approved 8CS7 target datasheet entry; Section2
Peak Cathode Current 70
105 mA
Published in approved 8CS7 target datasheet entry; Section2
Average Cathode Current 20
30 mA
Published in approved 8CS7 target datasheet entry; Section2
Plate Dissipation 1.25
8.6 W
Published in approved 8CS7 target datasheet entry; Section2
Grid-Circuit Resistance 2.2
2.2 MΩ
Published in approved 8CS7 target datasheet entry; Section2
# Pulse duration must not exceed 15% of a vertical scanning cycle (
2.5 milliseconds
Published in approved 8CS7 target datasheet entry; Section2
Capacitance
Grid to Plate 2.6
2.6 pF
Published in approved 8CS7 target datasheet entry; Section2
Grid to Cathode and Heater 1.8
3 pF
Published in approved 8CS7 target datasheet entry; Section2
Plate to Cathode and Heater 0.5
0.5 pF
Published in approved 8CS7 target datasheet entry; Section2
Characteristic
Plate Voltage 250
250 V
Published in approved 8CS7 target datasheet entry; Section2
Grid Voltage —8.5
-10.5 V
Published in approved 8CS7 target datasheet entry; Section2
Plate Resistance (Approx.) 7700
3450 Ω
Published in approved 8CS7 target datasheet entry; Section2
2200
4500 µS
Published in approved 8CS7 target datasheet entry; Section2
10.5
19 mA
Published in approved 8CS7 target datasheet entry; Section2
Plate Current for grid voltage of
-16 V
Published in approved 8CS7 target datasheet entry; Section2
Plate Current for grid voltage of --16 volts
3 mA
Published in approved 8CS7 target datasheet entry; Section2