Power - Pentode (NOT beam) ·Pentode-Pentode
PLL80
PLL80/12HU8-family output pentode; available source lacks enough detail for a narrower functional assignment.
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 12 V / 300 mA
Description
SEL PLL80 designation for the 12HU8 twin output pentode.
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
- 12 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
2 physical sections, each with unique specifications.
Section 1
Pentode
- Max plate voltage
- 300 V
- Max screen voltage
- 300 V
- Max plate dissipation
- 12 W
- Max screen dissipation
- 1.25 W
- Max cathode current
- 40 mA
Representative section for repeated identical sections.
Section 2
Pentode
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.