Data set 01
1950 General Electric Transmitting Types
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
HeaterOrFilamentVoltage
4.5 V
HeaterOrFilamentCurrent
1.1 A
Power - Triode ·Triode
5556
Compact power triode for AF amplification and modulation as well as RF amplifier and oscillator service. Published transmitting-tube data rate it for full operation through about 6 MHz, with reduced ratings extending higher.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- J4
- Base pins
- 4
- Nominal heater
- 4.5 V / 1.1 A
Description
Power triode for AF power amplifier/modulator and RF amplifier/oscillator service.
Socket description
Jumbo 4-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- J4
- Base pins
- 4
- Nominal heater voltage
- 4.5 V
- Nominal heater current
- 1.1 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
- 0.00133 S
- Amplification factor
- 8.5
- Max plate voltage
- 350 V
- Max plate dissipation
- 10 W
Published ratings and characteristics promoted from the supplied General Electric source where explicitly available.
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.
Data set 02
1956 RCA Transmitting Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Maximum full-rating frequency
6 MHz
Reduced-rating frequency
30 MHz