Power - Pentode (NOT beam) ·Diode-Diode-Pentode
UBL71
Diode/power-pentode combination for receiver detection and final loudspeaker output.
- Sections
- 3
- Base
- -
- Socket code
- B8G
- Base pins
- 8
- Nominal heater
- 55 V / 100 mA
Description
Diode-output pentode for detector and audio output service.
Socket description
Loctal 8-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B8G
- Base pins
- 8
- Nominal heater voltage
- 55 V
- Nominal heater current
- 100 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
Pentode
No fixed ratings are recorded for this section.
Section 2
Diode
No fixed ratings are recorded for this section.
Section 3
Diode
No fixed ratings are recorded for this section.
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.