Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Peak Positive Pulse Plate Voltage
2000 V
VerticalDeflection
Peak Cathode Current
350 mA
Power - Triode ·Triode
6CK4
Low-mu high-current power triode intended for electronic voltage-regulator series-pass service. Its low plate resistance and substantial cathode-current capability make it suited to controlling regulated DC supplies rather than conventional voltage amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 8JB
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 1.25 A
Description
Low-mu triode for television vertical-deflection amplifier service with high zero-bias plate current.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8JB
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 1.25 A
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8JB - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1G1 | A | G1 — Control Grid EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
| PIN2H | — | H — Heater EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
| PIN3G1 | A | G1 — Control Grid EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
| PIN5P | A | P — Plate (Anode) EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
| PIN7H | — | H — Heater EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
| PIN8K | A | K — Cathode EIA transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 130, 8JB |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 1200 Ω
- Transconductance
- 0.0055 S
- Amplification factor
- 6.6
- Max plate voltage
- 2000 V
- Max plate dissipation
- 12 W
- Max cathode current
- 350 mA
- Rectifier max heater-cathode voltage
- 200 V
Vertical-deflection service; 2000 V positive pulse plate rating
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 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-to-plate capacitance
6.5 pF
Input capacitance
8 pF
Output capacitance
1.8 pF
Other
Peak positive pulse plate voltage
2000 V
VerticalDeflection
Peak negative pulse grid voltage
-250 V
VerticalDeflection
Peak cathode current
350 mA
VerticalDeflection
Plate voltage
250 V
ClassA
Grid voltage
-28 V
ClassA
Plate current
40 mA
ClassA
Characteristic
Zero-bias plate current
125 mA
Eb=100V;Ec=0
Data set 03
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Peak Positive Pulse Plate Voltage
2000 V
VerticalDeflection
Peak Cathode Current
350 mA
VerticalDeflection
Data set 04
1971 RCA HB3 Binder 4 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid to plate
6.5 pF
Grid to cathode and heater
8 pF
Plate to cathode and heater
1.8 pF
Characteristics
Plate Voltage
100 V
Published table column 1 of 2
Plate Voltage
250 V
Published table column 2 of 2
Grid Voltage
0 V
Published table column 1 of 2
Grid Voltage
-28 V
Published table column 2 of 2
Plate Resistance (Approx )
1200 Ω
Transconductance
5500 µS
Plate Current
125 mA
Published table column 1 of 2
Plate Current
40 mA
Published table column 2 of 2
Plate Current for grid volts =
-36 V
Published table column 1 of 2
Plate Current for grid volts =
10 V
Published table column 2 of 2
ma. =
0.5 V
Published table column 1 of 2
ma. =
-50 V
Published table column 2 of 2
Other
The do component must not exceed
100 V