Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate Voltage
90 V
Characteristic
Plate Current
1.5 mA
Plate 90 V; grid -3 V
Capacitance
Grid-to-Plate Capacitance
2.4 pF
Voltage - Triode (single) ·Triode
1E4G
Directly heated medium-mu triode for Class A voltage amplification in receiving and general small-signal electronic equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 5S
- Socket code
- -
- Base pins
- 5
- Nominal heater
- 1.4 V / 50 mA
Description
Directly heated medium-mu triode for Class A voltage amplification.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 5S
- Socket code
- -
- Base pins
- 5
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 50 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
5S - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1IS | A | IS — Internal Screen EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5S |
| PIN2F | — | F — Filament EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5S |
| PIN3P | A | P — Plate (Anode) EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5S |
| PIN5G1 | A | G1 — Control Grid EIA chart transcription; manufacturer corroboration pending; preserve source designation G1 | Unverified EIA Base Connections, printed page 127, 5S |
| PIN7F | — | F — Filament EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5S |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 11200 Ω
- Transconductance
- 0.0013 S
- Amplification factor
- 14.5
- Max plate voltage
- 110 V
Medium-mu triode.
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
110 V
Plate voltage
90 V
ClassA GridBias0V
Control-grid voltage
0 V
ClassA GridBias0V
Plate current
4.5 mA
ClassA GridBias0V
Plate resistance
11200 Ohm
ClassA GridBias0V
Transconductance
1300 uS
ClassA GridBias0V
Amplification factor
14.5
ClassA GridBias0V
Plate voltage
90 V
ClassA GridBiasMinus3V
Control-grid voltage
-3 V
ClassA GridBiasMinus3V
Plate current
1.4 mA
ClassA GridBiasMinus3V
Plate resistance
19000 Ohm
ClassA GridBiasMinus3V
Transconductance
760 uS
ClassA GridBiasMinus3V
Amplification factor
14.5
ClassA GridBiasMinus3V
Capacitance
Input capacitance
2.4 pF
Output capacitance
6 pF
Grid-to-plate capacitance
2.4 pF