Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA
Voltage - Dual Triode (similar high frequency) ·Triode-Triode
6112
Subminiature high-mu twin triode intended for UHF amplifier service, offering two compact voltage-amplifying sections for high-frequency equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 8DG
- Socket code
- SUBMINIATURE8
- Base pins
- 8
- Nominal heater
- 6.3 V / 300 mA
Description
Subminiature high-mu twin triode for UHF 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
- 8DG
- 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
8DG - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12P | B | P — Plate (Anode) EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN22G1 | B | G1 — Control Grid Original EIA label 2G1; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN3H | — | H — Heater Original EIA label H; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN42K | B | K — Cathode Original EIA label 2K; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN51K | A | K — Cathode Original EIA label 1K; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN6H | — | H — Heater Original EIA label H; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN71G1 | A | G1 — Control Grid Original EIA label 1G1; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
| PIN81P | A | P — Plate (Anode) Original EIA label 1P; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DG |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 28000 Ω
- Transconductance
- 0.0018 S
- Amplification factor
- 70
- Max plate voltage
- 165 V
- Max plate dissipation
- 0.1 W
- Max cathode current
- 22 mA
Representative row for electrically identical repeated sections.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 28000 Ω
- Transconductance
- 0.0018 S
- Amplification factor
- 70
- Max plate voltage
- 165 V
- Max plate dissipation
- 0.1 W
- Max cathode current
- 22 mA
Second physical triode restored under current one-row-per-physical-section policy.
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
Triode
Other
Maximum plate voltage
165 V
Published handbook rating
Plate voltage
150 V
ClassA
Plate current
1.75 mA
ClassA
Alternate plate voltage
100 V
ClassA OperatingPoint2
Alternate plate current
0.8 mA
ClassA OperatingPoint2
Characteristic
Plate resistance
28000 ohm
Published handbook characteristic
Transconductance
2500 µS
Published handbook characteristic
Amplification factor
70
Published handbook characteristic
Heater/filament voltage
6.3 V
Published heater/filament rating
Heater/filament current
300 mA
Published heater/filament rating
Alternate plate resistance
39000 ohm
ClassA OperatingPoint2
Alternate transconductance
1800 µS
ClassA OperatingPoint2
Alternate amplification factor
70
ClassA OperatingPoint2
Data set 03
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater Voltage
6.3 V
Heater Current
300 mA
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
ImpactAcceleration
450 g
UniformAcceleration
1000 g
VibrationalAcceleration
2.5 g
Service
UHF amplifier
Data set 05
1966 Tung Sol Electronic Tubes 4 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater/filament voltage
6.3 V
Heater/filament current
300 mA
Application
Application summary
Subminiature high-mu twin triode for UHF service.
Characteristic
Plate voltage
150 V
Plate current
8 mA
Transconductance
6000 uS
Amplification factor
60
Grid-to-plate capacitance
1.4 pF
Maximum cathode current
22 mA
Data set 06
1999 Philips 0-D
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Anode current
0.8 mA
Typical per section
Anode-grid capacitance
1 pF
Interelectrode
Grid-cathode-heater capacitance
1.7 pF
Interelectrode