Voltage Pentode ·Pentode
6788
High-temperature receiving pentode designed for low-current small-signal amplification where conventional receiving tubes cannot tolerate the operating environment.
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 175 mA
Description
High-temperature receiving pentode for low-current applications.
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
- 6.3 V
- Nominal heater current
- 175 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
- Transconductance
- 0.0011 S
- Max plate voltage
- 250 V
- Max screen voltage
- 150 V
- Max plate dissipation
- 0.5 W
- Max cathode current
- 5.5 mA
Published source values promoted where applicable; special microwave/counter data retained as 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.