Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Steady state peak plate current
60 mA
Each plate
Transient peak plate current
350 mA
Each plate
Diode (NOT rectifier) ·Diode-Diode
5896
Subminiature twin diode with separate cathodes for detector, AGC, and low-current rectifier service in industrial and communications equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 8DJ
- Socket code
- SUBMINIATURE8
- Base pins
- 8
- Nominal heater
- 6.3 V / 300 mA
Description
Subminiature twin diode with separate cathodes for independent operation, suitable for detector, automatic-gain-control and low-current power-rectifier service.
Socket description
Subminiature 8-lead base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8DJ
- Socket code
- SUBMINIATURE8
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8DJ - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12P | B | P — Plate (Anode) Original EIA label 2P; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN22K | B | K — Cathode Original EIA label 2K; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN3H | — | H — Heater Original EIA label H; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN4SH | A | SH — Internal Shield Original EIA label SH; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN51P | A | P — Plate (Anode) Original EIA label 1P; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN6H | — | H — Heater Original EIA label H; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
| PIN71K | A | K — Cathode Original EIA label 1K; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DJ |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 460 V
- Rectifier nominal output current
- 10 mA
- Rectifier peak forward current
- 60 mA
- Rectifier forward voltage drop
- 4.5 V
- Rectifier max heater-cathode voltage
- 360 V
Representative section for two electrically identical sections.
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Second physical diode section added in approved section-structure reconciliation.
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
1958 Compagnie General
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristics
Heater Voltage
6.3 V
Heater Current
300 mA
Approximate Detection Frequency
450 MHz
Minimum Diode Resonant Frequency
900 MHz
Each section
Data set 03
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristic
Tube voltage drop
4.5 V
At18mADC
Other
DC output current maximum per plate
10 mA
FullWave;EachSection
Peak inverse voltage maximum
460 V
FullWave;EachSection
RMS supply voltage per plate
150 V
FullWave;EachSection
Peak current per plate maximum
60 mA
FullWave;EachSection
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
AC Plate Supply Voltage Per Plate
165 V
TransientPeakPlateCurrentPerPlate
350 mA
Duration<=0.2s
DC Output Current
18 mA
FullWave;CapacitorInputFilter
Data set 05
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Heater voltage
6.3 V
Heater current
300 mA
Maximum AC plate-supply voltage per plate RMS
165 V
Full-wave DC output current
18 mA
CapacitorInputFilter
Filter input capacitance
8 uF
CapacitorInputFilter
Maximum peak inverse voltage
460 V
Nominal DC output current
18 mA
Maximum peak forward current
60 mA
Maximum heater-cathode voltage
360 V
Capacitance
Plate1 input capacitance
2.5 pF
Section1
Cathode1 input capacitance
3.5 pF
Section1