Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterOrFilamentVoltageNominal
6.3 V
HeaterOrFilamentCurrentNominal
900 mA
MaxPlateVoltage
3000 V
MaxCathodeCurrent
4 A
Power - Triode ·Triode
2C42
General Electric 2C42 indirectly heated disk-seal UHF pulsed power oscillator triode rated for operation to 1.3 GHz, with 6.3 V 0.9 A heater and 3 kV peak anode rating.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 6
- Nominal heater
- 6.3 V / 900 mA
Description
Disk-seal triode designed for stable plate-pulsed oscillator operation through 1300 MHz.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 6
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 900 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
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.008 S
- Amplification factor
- 48
- Max plate voltage
- 3000 V
- Max plate dissipation
- 25 W
- Max cathode current
- 4 A
GE 2C42 RMA 1946 disk-seal UHF plate-pulsed oscillator triode. Mu 48; gm 0.008 A/V at plate current 22 mA. Maximum plate voltage 3000 V is PEAK PULSE only, not continuous DC. LOW duty max: peak anode 3000 V, cathode peak 4 A, pulse width 3 µs, dissipation 12 W, frequency 1300 MHz. HIGH duty max: peak anode 2000 V, cathode peak 1.5 A, pulse width 9 µs, dissipation 25 W, frequency 1300 MHz. Promoted max_plate_dissipation 25 W is conditional high-duty rating, not valid at 3000 V low-duty regime. Typical low-duty 3000 V, 2 mA avg plate, 2.5 A peak cathode, 1 µs at 1000 Hz, 4.25 W plate dissipation, ~1750 W peak RF at 1050 MHz; high-duty 2000 V, 7.2 mA avg plate, 1.5 A peak cathode, 3 µs at 2000 Hz, 9.9 W plate dissipation, ~750 W peak RF at 1050 MHz. Max seal 200°C. Capacitances Cgp 1.7 pF, Cgk 2.9 pF, Cpk max 0.05 pF, cathode RF contact 100 pF. Do not assign pulse peak cathode current to DC max_cathode_current field.
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.