Data set 01
1950 General Electric Transmitting Types
Published operating points and test conditions from this source.
SECTION 1
Other
Other
Maximum audio modulating frequency
500 kHz
Application
Application
FM phase modulator
Specialized - Uncategorized ·Other
2H21
Phasitron phase-modulator tube for FM transmitters. It converts audio-frequency modulation into controlled phase variation of a crystal-controlled RF carrier.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- -
Description
Phasitron phase-modulator tube for crystal-controlled FM transmitter service.
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
- -
- Nominal heater current
- -
- 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
Other
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published source values promoted where applicable; additional values 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.