Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Section1AmplificationFactor
80
Section1
SECTION 2
Triode
Other
Section2PlateDissipation
10 W
Section2
Power - TV Vertical Output ·Triode-Triode
6EM7
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
- 8BD
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 900 mA
Description
Glass octal dissimilar dual triode used as a combined vertical-deflection oscillator and vertical-deflection amplifier in color and black-and-white 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
- 8BD
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 900 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8BD - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12G1 | B | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN22P | B | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN32K | B | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN41G1 | A | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN51P | A | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN61K | A | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN7H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN8H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 40000 Ω
- Transconductance
- 0.002 S
- Amplification factor
- 80
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.5 W
- Max cathode current
- 20 mA
- Rectifier max heater-cathode voltage
- 200 V
- Rectifier warm-up time
- 11 s
Published promoted fields populated from the printed semantic headings.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 750 Ω
- Transconductance
- 0.0075 S
- Amplification factor
- 5.5
- Max plate voltage
- 220 V
- Max plate dissipation
- 10 W
- Max cathode current
- 100 mA
- Rectifier max heater-cathode voltage
- 200 V
- Rectifier warm-up time
- 11 s
Published promoted fields populated from the printed semantic 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
1965 Westinghouse Data Book
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Section function
Vertical-deflection oscillator
Capacitance
Grid-to-plate capacitance
4.8 pF
Characteristics
Transconductance
1600 uS
Amplification factor
68
SECTION 2
Triode
Application
Section function
Vertical-deflection output amplifier
Capacitance
Grid-to-plate capacitance
10 pF
Other
Peak cathode current maximum
175 mA
Pulse
Plate dissipation maximum
10 W
Characteristics
Transconductance
7200 uS
Amplification factor
5.4
Data set 03
1966 Tung Sol Electronic Tubes 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Plate voltage
250 V
Section1;Oscillator
Grid 1 voltage
-3 V
Section1;Oscillator
Plate current
1.4 mA
Section1;Oscillator
SECTION 2
Triode
Other
Peak positive pulse plate voltage
1500 V
Section2;VerticalDeflection
Peak cathode current
175 mA
Section2;VerticalDeflection
Characteristic
Plate voltage
150 V
Section2;VerticalDeflection
Grid 1 voltage
-20 V
Section2;VerticalDeflection
Plate current
50 mA
Section2;VerticalDeflection
Instantaneous plate knee current
95 mA
Section2;Eb=60V;Ec=0V
Data set 04
1971 RCA HB3 Binder 4 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
250 V
ClassA
Plate current
1.4 mA
ClassA
Maximum plate voltage
330 V
DC PLATE VOLTAGE
330 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
PEAK NEGATIVE-PULSE GRID VOLTAGE
400 V
Pulse
PLATE DISSIPATION — published value 1
1 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
PLATE DISSIPATION — published value 2
5 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater negative with respect to cathode
200 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Heater positive with respect to cathode
200 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
bias operation — published value 1
2 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
bias operation — published value 2
2 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
DC PLATE VOLTAGE
330 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
PEAK POSITIVE-PULSE PLATE VOLTAGEd
1500 V
Pulse
PEAK NEGATIVE-PULSE GRID VOLTAGE
250 V
Pulse
PLATE DISSIPATION
10 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
bias operation
2.2 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Characteristics
Plate resistance
40000 ohm
ClassA
Transconductance
1600 uS
ClassA
Amplification factor
68
ClassA
Voltage (AC or DC) — published value 1
6.3 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Voltage (AC or DC) — published value 2
10 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Current at 6.3 volts — published value 1
6.3 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Current at 6.3 volts — published value 2
0.925 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid to plate — published value 1
4.8
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid to plate — published value 2
10
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid to cathode and heater — published value 1
2.2
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid to cathode and heater — published value 2
7
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate to cathode and heater — published value 1
0.6
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate to cathode and heater — published value 2
1.8
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Voltage — published value 1
250 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Voltage — published value 2
150 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid Voltage — published value 1
3 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Grid Voltage — published value 2
20 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Resistance — published value 1
40000 ohm
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Resistance — published value 2
750 ohm
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Transconductance — published value 1
1600
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Transconductance — published value 2
7200
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Current — published value 1
1.4 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Current — published value 2
50 mA
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
60 and grid volts = 0 — published value 1
60 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
60 and grid volts = 0 — published value 2
0 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
60 and grid volts = 0 — published value 3
95 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Currentforgridvolts=-28 — published value 1
-28 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Plate Currentforgridvolts=-28 — published value 2
10 V
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 1 —Grid of — published value 1
1
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 1 —Grid of — published value 2
5
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 2 —Plate of — published value 1
2
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 2 —Plate of — published value 2
6
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 3 —Cathode of — published value 1
3
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 3 —Cathode of — published value 2
7
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Pin 4 —Grid of
4
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
SECTION 2
Triode
Other
Plate voltage
150 V
ClassA
Plate current
50 mA
ClassA
Maximum plate voltage
330 V
Characteristics
Plate resistance
750 ohm
ClassA
Transconductance
7200 uS
ClassA
Amplification factor
5.4
ClassA
Unit No.2
8
Published datasheet value; multiple numbers on one source row represent separate limits or operating conditions.
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid to Plate
4.8 pF
Section1
Grid to Cathode and Heater
2.2 pF
Section1
Plate to Cathode and Heater
0.6 pF
Section1
Characteristic
Plate Voltage
250 V
ClassA
Grid Voltage
-3 V
ClassA
Plate Current
1.4 mA
ClassA
Other
Peak Negative-Pulse Grid Voltage
400 V
VerticalDeflection
SECTION 2
Triode
Capacitance
Grid to Plate
10 pF
Section2
Grid to Cathode and Heater
7 pF
Section2
Plate to Cathode and Heater
1.8 pF
Section2
Characteristic
Plate Voltage
150 V
ClassA
Grid Voltage
-20 V
ClassA
Plate Current
50 mA
ClassA
Other
Peak Positive-Pulse Plate Voltage
1500 V
VerticalDeflection
Average Cathode Current
50 mA
VerticalDeflection