Data set 01
1955 Lorenz
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Typical anode current
1.2 mA
Other
RC-coupled voltage gain
60
200VSupply
Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Triode
HBC91
Double-diode triode for receiver detection and audio-frequency amplification. The two diode systems provide detector or control-voltage rectification while the triode supplies subsequent AF voltage gain.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 3
- Base
- -
- Socket code
- B7G
- Base pins
- -
- Nominal heater
- 12.6 V / 150 mA
Description
Dual-diode triode for detector and AF amplifier service.
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
- -
- Nominal heater voltage
- 12.6 V
- Nominal heater current
- 150 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
3 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 62000 Ω
- Transconductance
- 0.0016 S
- Max plate voltage
- 250 V
Section 2
Diode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 200 V
- Max cathode current
- 1 mA
Section 3
Diode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 200 V
- Max cathode current
- 1 mA
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.