Data set 01
198X Shuguang
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
4 A
Nominal
Maximum Plate Voltage
1250 V
Maximum Plate Dissipation
40 W
Power - Triode ·Triode
FU811
Chinese directly heated high-mu transmitting triode for RF oscillation and power amplification. With about 1.25 kV plate capability and 40 W dissipation, it provides high gain in comparatively simple RF power stages.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 4 A
Description
Directly heated power triode for oscillation and RF power amplification.
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
- 4 A
- 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
Triode
X-ray radiationInterelectrode capacitances
- Amplification factor
- 160
- Max plate voltage
- 1250 V
- Max plate dissipation
- 40 W
Published limits promoted from translated source.
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.