Data set 01
1953 Amperex
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Output voltage typical
18000 V
Output current typical
0.15 mA
Rectifier - TV Line Scan Boost ·Rectifier
1S2A
High-vacuum single-anode television line-flyback EHT rectifier for generating CRT accelerating voltage from horizontal timebase transformer pulses.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- E91
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 1.4 V / 550 mA
Description
High-voltage television rectifier diode for flyback power-supply service.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- E91
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 550 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
E91 - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Rectifier
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 27000 V
- Rectifier nominal output current
- 0.8 mA
- Rectifier peak forward current
- 40 mA
Published Rogers/JETEC/RMA ratings and characteristics promoted where applicable; additional data retained as parameters.
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
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Capacitance
Plate To Cathode And Heater Capacitance
1.8 pF
Other
MaximumFilterInputCapacitor
2000 pF
DC Output Voltage
18000 V
DC Output Current
0.15 mA
Data set 03
1963 Amperex Condensed
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Peak inverse voltage
22000 V
AbsoluteMaximum
Maximum plate current
40 mA
HalfWave
Data set 04
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Peak inverse voltage maximum
20000 V
FlybackRectifier
Average plate current maximum
0.8 mA
FlybackRectifier
Peak plate current maximum
25 mA
FlybackRectifier
Application
High-voltage television rectifier
Section1
X-ray shielding note
Observe high-voltage X-ray precautions
Section1