Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Service
Horizontal multivibrator / phase inverter / vertical deflection
Voltage - Dual Triode (similar) ·Triode-Triode
8SN7GTB
Medium-mu double triode intended for television horizontal multivibrator, phase-inverter, and vertical-deflection service, combining timing and amplifier functions.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 8.4 V / 450 mA
Description
Medium-mu double triode for horizontal multivibrator, phase-inverter and vertical-deflection service.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 8.4 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0026 S
- Amplification factor
- 20
- Max plate voltage
- 450 V
Two identical triode sections; represented once under identical-section compression.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0026 S
- Amplification factor
- 20
- Max plate voltage
- 450 V
Physical triode section added to align rows with SectionCount.
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.