Data set 01
1968 Mazda Belvu
Published operating points and test conditions from this source.
SECTION 1
Pentode
Application
Application
ElectrometerPreamplifier text
Characteristic
InputCurrentRange
1e-14 to 1e-7 A
Logarithmic operation
Voltage Pentode or Tetrode (under 100V) ·Pentode
E9
Very-low-power directly heated electrometer pentode designed for linear or logarithmic preamplifier measurement circuits. Its defining function is amplification of extremely small measurement signals in high-impedance instrumentation.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 1.25 V / 9 mA
Description
Very-low-power directly heated electrometer pentode for linear or logarithmic preamplifier measurement circuits.
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
- 1.25 V
- Nominal heater current
- 9 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
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 20000000 Ω
- Transconductance
- 0.00014 S
- Max plate voltage
- 22.5 V
- Max screen voltage
- 22.5 V
- Max cathode current
- 0.3 mA
Electrometer pentode; source also specifies triode and diode-connected operation.
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.