Data set 01
1953 AEG
Published operating points and test conditions from this source.
SECTION 1
Heptode
Other
ConductingPlateVoltage
150 V
ConductingPlateCurrent
5.65 mA
Maximum Plate Current
20 mA
Heptode ·Heptode
EH900S
Long-life heptode designed for electronic switching and gating rather than ordinary receiver conversion, using multiple control grids for effective current control.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 300 mA
Description
Long-life heptode designed for electronic switching duties.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 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
Heptode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 1 W
- Max screen dissipation
- 1 W
- Max cathode current
- 20 mA
Switching-heptode operating conditions preserved in 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.