Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Typical Plate Current
200 mA
ClassC RF
Power - Triode (over 1000V 100W) ·Triode
FP285
High-vacuum transmitting triode for RF oscillator and amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 10 V / 3.25 A
Description
The FP285 is a high-vacuum tube for oscillator and radio-frequency amplifier service in high-frequency circuits.
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
- 10 V
- Nominal heater current
- 3.25 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
- Transconductance
- 0.004 S
- Max plate voltage
- 1350 V
- Max plate dissipation
- 100 W
- Max cathode current
- 200 mA
Published Class C maximum ratings promoted; unreadable values were not guessed.
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.