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Voltage Dual Pentode Triode ·Pentode-Pentode-Triode

6BA11

Compactron combining a medium-mu triode with twin pentodes for television vertical-deflection oscillator/driver and combined sync/automatic-gain-control circuitry.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 3
Base: 12ER
Socket code: B12C
Base pins: 12
Nominal heater: 6.3 V / 600 mA

Description

Triode plus twin-pentode tube used as a vertical-deflection oscillator and in combined sync/AGC television circuits.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 12ER
Socket code: B12C
Base pins: 12
Nominal heater voltage: 6.3 V
Nominal heater current: 600 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

12ER - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0018 S
Amplification factor: 18
Max plate voltage: 300 V
Max plate dissipation: 1.5 W
Max cathode current: 20 mA

Triode section; ratings and characteristics retained in parameter rows where not safely promotable.

Section 2

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0017 S
Max plate voltage: 300 V
Max screen voltage: 150 V
Max plate dissipation: 1.1 W
Max screen dissipation: 0.75 W
Max cathode current: 12 mA

Pentode section; ratings and characteristics retained in parameter rows where not safely promotable.

Section 3

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.006 S
Max plate voltage: 300 V
Max screen voltage: 150 V
Max plate dissipation: 1.1 W

Pentode section; ratings and characteristics retained in parameter rows where not safely promotable.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 3

Pentode

Characteristic

Heater Voltage. ...ttt it i ienreiinnannenes 8.4 6.3 Volts
6.3 V
Heater Voltage. ...ttt it i ienreiinnannenes 8.4 6.3 Volts
Heater Current ... .. i i i ittt ieiteearennannnans 450 600 Ma
600 mA
Heater Current ... .. i i i ittt ieiteearennannnans 450 600 Ma
Output: PO (K4 h 4 1) i it i i i ittt renenannns 1.9 Pf
1.9 Pf
Output: PO (K4 h 4 1) i it i i i ittt renenannns 1.9 Pf
Plate Voltage . ittt it et i ittt it et 300 300 Volts
300 V
Plate Voltage . ittt it et i ittt it et 300 300 Volts
Positive DC Grid No. 3 Voltage .......ciiiiiiieriinennnnnnnns — 3.0 Volts
3 V
Positive DC Grid No. 3 Voltage .......ciiiiiiieriinennnnnnnns — 3.0 Volts
Negative DC Grid No. 3 Voltage .......cciiiiiiiiiinienennnnnn. — 50 Volts
50 V
Negative DC Grid No. 3 Voltage .......cciiiiiiiiiinienennnnnn. — 50 Volts
Peak Positive Grid No. 3 Voltage..........ccoiiiiiiiennnnnnn... — 50 Volts
50 V
Peak Positive Grid No. 3 Voltage..........ccoiiiiiiiennnnnnn... — 50 Volts
Negative DC Grid No. 1 Voltage .......coieiiriiiiniinnnraninnns — 50 Volts
50 V
Negative DC Grid No. 1 Voltage .......coieiiriiiiniinnnraninnns — 50 Volts
Plate Dissipation (Each Plate) ........iieiiiiiiniiniininennns 1.5 1.1 Watts
1.1 W
Plate Dissipation (Each Plate) ........iieiiiiiiniiniininennns 1.5 1.1 Watts
DC Cathode Current ... i i et e it enen s 20 12 Ma
12 mA
DC Cathode Current ... i i et e it enen s 20 12 Ma
Grid No. 3 Circuit Resistance (Each Grid).......cccvvuiiiaa... — 0.5 Megohm
0.5 Megohm
Grid No. 3 Circuit Resistance (Each Grid).......cccvvuiiiaa... — 0.5 Megohm
Grid No.2 Voltage ............... — 67.5 67.5 67.5 67.5 Volts
67.5 V
Grid No.2 Voltage ............... — 67.5 67.5 67.5 67.5 Volts
Grid No. 3 Voltage ............... — 0 0 -10 0 Volts
0 V
Grid No. 3 Voltage ............... — 0 0 -10 0 Volts
Grid No. 1 Voltage ............... -11 0 Notel Note 1 Note 1 Volts
1 V
Grid No. 1 Voltage ............... -11 0 Notel Note 1 Note 1 Volts
Plate Current ................... 5.0 — 2. Y] 2.5 Ma
2.5 mA
Plate Current ................... 5.0 — 2. Y] 2.5 Ma
Grid No. 2 Current .............. — — — 7.0 4.4 Ma
4.4 mA
Grid No. 2 Current .............. — — — 7.0 4.4 Ma
Grid No. 1 Voltage
1 V
Grid No. 1 Voltage
Grid No. 3 Voltage (Approx.)
3 V
Grid No. 3 Voltage (Approx.)

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
6.3 V
Heater current
600 mA
Plate current
50 mA
Typical operating conditions

SECTION 2

Pentode

Other

Heater voltage
6.3 V
Heater current
600 mA
Plate current
50 mA
Typical operating conditions

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Application
Vertical-deflection oscillator/driver
TriodeSection
Plate voltage
200 V
TriodeSection
Plate current
4 mA
TriodeSection

Characteristic

Amplification factor
70
TriodeSection

SECTION 2

Pentode

Other

Application
Second sync/AGC pentode section
PentodeSection2
Plate voltage
150 V
PentodeSection2
Screen voltage
100 V
PentodeSection2

Characteristic

Transconductance
6000 µS
PentodeSection2

SECTION 3

Pentode

Other

Application
Sync/AGC pentode section
PentodeSection1
Plate voltage
150 V
PentodeSection1
Screen voltage
100 V
PentodeSection1

Characteristic

Transconductance
6000 µS
PentodeSection1

Data set 04

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Voltage (AC or DC) = a
6.3 V
Section1;PublishedColumn1
Voltage (AC or DC) = a
0.6 V
Section1;PublishedColumn2
Warm—up time (Average)
11 s
Section1
Heater negative with respect to cathode. max
200 V
Section1
Heater positive with respect to cathode. max
200 V
Section1
Plate Voltage
100 V
Section1;PublishedColumn1
Grid-No. Voltage
-10 V
Section1;PublishedColumn1
Grid-No. Voltage
0 V
Section1;PublishedColumn2
Grid-No. Voltage
67.5 V
Section1;PublishedColumn1
Grid-No.l Voltage g
9 V
Section1;PublishedColumn1
Grid No.l Transconductance
1800 µS
Section1;PublishedColumn1
Grid No.l Transconductance
1700 µS
Section1;PublishedColumn2
Plate Current
0 mA
Section1;PublishedColumn1
Plate Current
2.5 mA
Section1;PublishedColumn2
Grid No. Current
7 mA
Section1;PublishedColumn1
Grid No. Current
4.4 mA
Section1;PublishedColumn2
for plate µa =
100 V
Section1;PublishedColumn1
for plate µa =
-3.2 V
Section1;PublishedColumn2
for plate µa =
-18 V
Section1;PublishedColumn1
for plate µa =
2.3 V
Section1;PublishedColumn2

Capacitance

Grid to plate
2 pF
Section1
Input: GT to (KT,H)
2 pF
Section1
Output: PT to (KT,IS,H)
1.9 pF
Section1
G P to Pp
3 pF
Section1;PublishedColumn1
G P to Pp
2 pF
Section1;PublishedColumn2
Gap to all other electrodes
3.6 pF
Section1
GlP to all other electrodes
6 pF
Section1
PP to all other electrodes
3 pF
Section1
G P to G P max
2 pF
Section1;PublishedColumn1
G P to G P max
0.026 pF
Section1;PublishedColumn2

Other

Plate Voltage max. max
300 V
Section1;PublishedColumn1
Peak positive value - max
50 V
Section1
DC negative value - max
50 V
Section1
DC positive value. - max
3 V
Section1
Grid-No. (Screen-Grid) Voltage. - max
2 V
Section1;PublishedColumn1
Grid-No. (Screen-Grid) Voltage. - max
150 V
Section1;PublishedColumn2
Negative-bias value - max
50 V
Section1
Cathode Current max
20 mA
Section1;PublishedColumn1
Cathode Current max
12 mA
Section1;PublishedColumn2
Grid-No. Input - max
2 W
Section1;PublishedColumn1
Grid-No. Input - max
0.75 W
Section1;PublishedColumn2
Plate Dissipation (Each Plate). max
1.5 W
Section1;PublishedColumn1
Plate Dissipation (Each Plate). max
1.1 W
Section1;PublishedColumn2
(Each Grid) - max
0.5 Mohm
Section1
For fixed-bias operation max. max
0.25 Mohm
Section1;PublishedColumn1

SECTION 2

Pentode

Characteristics

Voltage (AC or DC) = a
6.3 V
Section2;PublishedColumn1
Voltage (AC or DC) = a
0.6 V
Section2;PublishedColumn2
Warm—up time (Average)
11 s
Section2
Heater negative with respect to cathode. max
200 V
Section2
Heater positive with respect to cathode. max
200 V
Section2
Plate Voltage
100 V
Section2;PublishedColumn1
Grid-No. Voltage
-10 V
Section2;PublishedColumn1
Grid-No. Voltage
0 V
Section2;PublishedColumn2
Grid-No. Voltage
67.5 V
Section2;PublishedColumn1
Grid-No.l Voltage g
9 V
Section2;PublishedColumn1
Grid No.l Transconductance
1800 µS
Section2;PublishedColumn1
Grid No.l Transconductance
1700 µS
Section2;PublishedColumn2
Plate Current
0 mA
Section2;PublishedColumn1
Plate Current
2.5 mA
Section2;PublishedColumn2
Grid No. Current
7 mA
Section2;PublishedColumn1
Grid No. Current
4.4 mA
Section2;PublishedColumn2
for plate µa =
100 V
Section2;PublishedColumn1
for plate µa =
-3.2 V
Section2;PublishedColumn2
for plate µa =
-18 V
Section2;PublishedColumn1
for plate µa =
2.3 V
Section2;PublishedColumn2

Capacitance

Grid to plate
2 pF
Section2
Input: GT to (KT,H)
2 pF
Section2
Output: PT to (KT,IS,H)
1.9 pF
Section2
G P to Pp
3 pF
Section2;PublishedColumn1
G P to Pp
2 pF
Section2;PublishedColumn2
Gap to all other electrodes
3.6 pF
Section2
GlP to all other electrodes
6 pF
Section2
PP to all other electrodes
3 pF
Section2
G P to G P max
2 pF
Section2;PublishedColumn1
G P to G P max
0.026 pF
Section2;PublishedColumn2

Other

Plate Voltage max. max
300 V
Section2;PublishedColumn1
Peak positive value - max
50 V
Section2
DC negative value - max
50 V
Section2
DC positive value. - max
3 V
Section2
Grid-No. (Screen-Grid) Voltage. - max
2 V
Section2;PublishedColumn1
Grid-No. (Screen-Grid) Voltage. - max
150 V
Section2;PublishedColumn2
Negative-bias value - max
50 V
Section2
Cathode Current max
20 mA
Section2;PublishedColumn1
Cathode Current max
12 mA
Section2;PublishedColumn2
Grid-No. Input - max
2 W
Section2;PublishedColumn1
Grid-No. Input - max
0.75 W
Section2;PublishedColumn2
Plate Dissipation (Each Plate). max
1.5 W
Section2;PublishedColumn1
Plate Dissipation (Each Plate). max
1.1 W
Section2;PublishedColumn2
(Each Grid) - max
0.5 Mohm
Section2
For fixed-bias operation max. max
0.25 Mohm
Section2;PublishedColumn1

SECTION 3

Pentode

Characteristics

Voltage (AC or DC) = a
6.3 V
Section3;PublishedColumn1
Voltage (AC or DC) = a
0.6 V
Section3;PublishedColumn2
Warm—up time (Average)
11 s
Section3
Heater negative with respect to cathode. max
200 V
Section3
Heater positive with respect to cathode. max
200 V
Section3
Plate Voltage
100 V
Section3;PublishedColumn1
Grid-No. Voltage
-10 V
Section3;PublishedColumn1
Grid-No. Voltage
0 V
Section3;PublishedColumn2
Grid-No. Voltage
67.5 V
Section3;PublishedColumn1
Grid-No.l Voltage g
9 V
Section3;PublishedColumn1
Grid No.l Transconductance
1800 µS
Section3;PublishedColumn1
Grid No.l Transconductance
1700 µS
Section3;PublishedColumn2
Plate Current
0 mA
Section3;PublishedColumn1
Plate Current
2.5 mA
Section3;PublishedColumn2
Grid No. Current
7 mA
Section3;PublishedColumn1
Grid No. Current
4.4 mA
Section3;PublishedColumn2
for plate µa =
100 V
Section3;PublishedColumn1
for plate µa =
-3.2 V
Section3;PublishedColumn2
for plate µa =
-18 V
Section3;PublishedColumn1
for plate µa =
2.3 V
Section3;PublishedColumn2

Capacitance

Grid to plate
2 pF
Section3
Input: GT to (KT,H)
2 pF
Section3
Output: PT to (KT,IS,H)
1.9 pF
Section3
G P to Pp
3 pF
Section3;PublishedColumn1
G P to Pp
2 pF
Section3;PublishedColumn2
Gap to all other electrodes
3.6 pF
Section3
GlP to all other electrodes
6 pF
Section3
PP to all other electrodes
3 pF
Section3
G P to G P max
2 pF
Section3;PublishedColumn1
G P to G P max
0.026 pF
Section3;PublishedColumn2

Other

Plate Voltage max. max
300 V
Section3;PublishedColumn1
Peak positive value - max
50 V
Section3
DC negative value - max
50 V
Section3
DC positive value. - max
3 V
Section3
Grid-No. (Screen-Grid) Voltage. - max
2 V
Section3;PublishedColumn1
Grid-No. (Screen-Grid) Voltage. - max
150 V
Section3;PublishedColumn2
Negative-bias value - max
50 V
Section3
Cathode Current max
20 mA
Section3;PublishedColumn1
Cathode Current max
12 mA
Section3;PublishedColumn2
Grid-No. Input - max
2 W
Section3;PublishedColumn1
Grid-No. Input - max
0.75 W
Section3;PublishedColumn2
Plate Dissipation (Each Plate). max
1.5 W
Section3;PublishedColumn1
Plate Dissipation (Each Plate). max
1.1 W
Section3;PublishedColumn2
(Each Grid) - max
0.5 Mohm
Section3
For fixed-bias operation max. max
0.25 Mohm
Section3;PublishedColumn1

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 8BA11 target datasheet entry; Section1
Heater Current 0.6
450 mA
Published in approved 8BA11 target datasheet entry; Section1
Heater Warm-up Time 11
11 seconds
Published in approved 8BA11 target datasheet entry; Section1
Plate Voltage
300 V
Published in approved 8BA11 target datasheet entry; Section1
Average Cathode Current
20 mA
Published in approved 8BA11 target datasheet entry; Section1
Plate Dissipation
1.5 W
Published in approved 8BA11 target datasheet entry; Section1
Plate Voltage
250 V
Published in approved 8BA11 target datasheet entry; Section1
Grid Voltage
-11 V
Published in approved 8BA11 target datasheet entry; Section1
Transconductance
1800 µS
Published in approved 8BA11 target datasheet entry; Section1
Plate Current
5 mA
Published in approved 8BA11 target datasheet entry; Section1
Grid Voltage (Approx.) for plate current of 100 juA
-18 V
Published in approved 8BA11 target datasheet entry; Section1
For fixed-bias operation
0.25 MΩ
Published in approved 8BA11 target datasheet entry; Section1
For cathode-bias operation
1 MΩ
Published in approved 8BA11 target datasheet entry; Section1
Plate Voltage (Each Unit)
300 V
Published in approved 8BA11 target datasheet entry; Section1
Peak positive value
50 V
Published in approved 8BA11 target datasheet entry; Section1
DC negative value
50 V
Published in approved 8BA11 target datasheet entry; Section1
DC positive value
3 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.2 (Screen-Grid) Voltage
150 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.l (Control-Grid) Voltage, Negative bias value
50 V
Published in approved 8BA11 target datasheet entry; Section1
Cathode Current
12 mA
Published in approved 8BA11 target datasheet entry; Section1
Plate Dissipation (Each Unit)
1.1 W
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.2 Input
0.75 W
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.3-Circuit Resistance (Each Unit)
0.5 MΩ
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.l-Circuit Resistance
0.5 MΩ
Published in approved 8BA11 target datasheet entry; Section1

Capacitance

Grid to Plate
2 pF
Published in approved 8BA11 target datasheet entry; Section1
Grid to Cathode and Heater
2 pF
Published in approved 8BA11 target datasheet entry; Section1
Plate to Cathode, Heater, and Internal Shield
1.9 pF
Published in approved 8BA11 target datasheet entry; Section1
Grid No.3 to Plate (Each Unit)
2 pF
Published in approved 8BA11 target datasheet entry; Section1
Grid No.3 to all Other Electrodes (Each Grid)
3.6 pF
Published in approved 8BA11 target datasheet entry; Section1
Grid No.l to all Other Electrodes)
6 pF
Published in approved 8BA11 target datasheet entry; Section1
Plate to all Other Electrodes (Each Plate)
3 pF
Published in approved 8BA11 target datasheet entry; Section1

Characteristic

Plate Voltage (Each Unit) 100
100 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.3 Voltage (Each Unit) —10
0 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.2 Voltage 67.5
67.5 V
Published in approved 8BA11 target datasheet entry; Section1
Plate Current (Each Unit) 0
2.5 mA
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.2 Current 7
4.4 mA
Published in approved 8BA11 target datasheet entry; Section1
Plate Voltage 100
100 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.3 Voltage 0
0 V
Published in approved 8BA11 target datasheet entry; Section1
Grid-No.l Transconductance
1700 µS
Published in approved 8BA11 target datasheet entry; Section1
Plate Current
2.5 mA
Published in approved 8BA11 target datasheet entry; Section1
100 /iA
3.2 V
Published in approved 8BA11 target datasheet entry; Section1

SECTION 2

Pentode

Other

Heater Voltage (ac/dc) 6.3
8.4 V
Published in approved 8BA11 target datasheet entry; Section2
Heater Current 0.6
450 mA
Published in approved 8BA11 target datasheet entry; Section2
Heater Warm-up Time 11
11 seconds
Published in approved 8BA11 target datasheet entry; Section2
Plate Voltage
300 V
Published in approved 8BA11 target datasheet entry; Section2
Average Cathode Current
20 mA
Published in approved 8BA11 target datasheet entry; Section2
Plate Dissipation
1.5 W
Published in approved 8BA11 target datasheet entry; Section2
Plate Voltage
250 V
Published in approved 8BA11 target datasheet entry; Section2
Grid Voltage
-11 V
Published in approved 8BA11 target datasheet entry; Section2
Transconductance
1800 µS
Published in approved 8BA11 target datasheet entry; Section2
Plate Current
5 mA
Published in approved 8BA11 target datasheet entry; Section2
Grid Voltage (Approx.) for plate current of 100 juA
-18 V
Published in approved 8BA11 target datasheet entry; Section2
For fixed-bias operation
0.25 MΩ
Published in approved 8BA11 target datasheet entry; Section2
For cathode-bias operation
1 MΩ
Published in approved 8BA11 target datasheet entry; Section2
Plate Voltage (Each Unit)
300 V
Published in approved 8BA11 target datasheet entry; Section2
Peak positive value
50 V
Published in approved 8BA11 target datasheet entry; Section2
DC negative value
50 V
Published in approved 8BA11 target datasheet entry; Section2
DC positive value
3 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.2 (Screen-Grid) Voltage
150 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.l (Control-Grid) Voltage, Negative bias value
50 V
Published in approved 8BA11 target datasheet entry; Section2
Cathode Current
12 mA
Published in approved 8BA11 target datasheet entry; Section2
Plate Dissipation (Each Unit)
1.1 W
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.2 Input
0.75 W
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.3-Circuit Resistance (Each Unit)
0.5 MΩ
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.l-Circuit Resistance
0.5 MΩ
Published in approved 8BA11 target datasheet entry; Section2

Capacitance

Grid to Plate
2 pF
Published in approved 8BA11 target datasheet entry; Section2
Grid to Cathode and Heater
2 pF
Published in approved 8BA11 target datasheet entry; Section2
Plate to Cathode, Heater, and Internal Shield
1.9 pF
Published in approved 8BA11 target datasheet entry; Section2
Grid No.3 to Plate (Each Unit)
2 pF
Published in approved 8BA11 target datasheet entry; Section2
Grid No.3 to all Other Electrodes (Each Grid)
3.6 pF
Published in approved 8BA11 target datasheet entry; Section2
Grid No.l to all Other Electrodes)
6 pF
Published in approved 8BA11 target datasheet entry; Section2
Plate to all Other Electrodes (Each Plate)
3 pF
Published in approved 8BA11 target datasheet entry; Section2

Characteristic

Plate Voltage (Each Unit) 100
100 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.3 Voltage (Each Unit) —10
0 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.2 Voltage 67.5
67.5 V
Published in approved 8BA11 target datasheet entry; Section2
Plate Current (Each Unit) 0
2.5 mA
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.2 Current 7
4.4 mA
Published in approved 8BA11 target datasheet entry; Section2
Plate Voltage 100
100 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.3 Voltage 0
0 V
Published in approved 8BA11 target datasheet entry; Section2
Grid-No.l Transconductance
1700 µS
Published in approved 8BA11 target datasheet entry; Section2
Plate Current
2.5 mA
Published in approved 8BA11 target datasheet entry; Section2
100 /iA
3.2 V
Published in approved 8BA11 target datasheet entry; Section2