Data set 01
1950 General Electric Transmitting Types
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
HeaterOrFilamentVoltage
6.3 V
HeaterOrFilamentCurrent
300 mA
Voltage Pentode - Sharp Cutoff (single) ·Pentode
5693
Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 8N
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 300 mA
Description
Premium pentode based on the 6SJ7 for critical industrial service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8N
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8N - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1SH | A | SH — Internal Shield EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN2H | — | H — Heater EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN3G3 | A | G3 — Suppressor Grid EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN4G1 | A | G1 — Control Grid EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN5K | A | K — Cathode EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN6G2 | A | G2 — Screen Grid EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN7H | — | H — Heater EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
| PIN8P | A | P — Plate (Anode) EIA transcription; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8N |
Section ratings
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 1000000 Ω
- Transconductance
- 0.00165 S
- Max plate voltage
- 300 V
- Max screen voltage
- 125 V
- Max plate dissipation
- 2 W
- Max screen dissipation
- 0.3 W
- Max cathode current
- 50 mA
Electrical section extracted from supplied 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
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Pentode
Capacitance
Input capacitance
5.3 pF
Output capacitance
6.2 pF
Grid-to-plate capacitance
0.005 pF
Other
Plate voltage
250 V
ClassA
Screen-grid voltage
100 V
ClassA
Grid voltage
-3 V
ClassA
Plate current
3 mA
ClassA
Screen-grid current
0.85 mA
ClassA
Data set 03
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Pentode
CrossReference
Prototype / equivalent family
6SJ7
Data set 04
1971 RCA HB3 Binder 3 of 7
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Maximum plate voltage
- to 300 V
Maximum screen voltage
- to 125 V
Maximum plate dissipation
- to 2 W
Maximum screen dissipation
- to 0.3 W
Maximum cathode current
- to 50 mA
Characteristics
Plate resistance
1000000 Ω
Transconductance
1650 µS
Plate voltage
250 V
Grid No.2 voltage
100 V
Grid No.1 voltage
-3 V
Plate current
3 mA
Grid No.2 current
0.85 mA
Capacitance
Grid to Plate
0.005 pF
Input
4.8 to 5.8 pF
Output
5.6 to 6.8 pF