Data set 01
1953 Amperex
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Maximum Plate Voltage
13000 V
Maximum Plate Dissipation
15000 W
Maximum Cathode Current
4.8 A
Power - Triode ·Triode
7800
Forced-air-cooled power triode for communications and industrial service, also usable as a pulse amplifier and hard-tube modulator to roughly 200 kW peak.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 8 V / 130 A
Description
7800 is a Triode device in the supplied Amperex literature. Forced-air-cooled triode for communication and industrial service; also useful as a pulse amplifier and hard-tube modulator to 200 kW peak.
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
- 8 V
- Nominal heater current
- 130 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
- 33
- Max plate voltage
- 13000 V
- Max plate dissipation
- 15000 W
- Max cathode current
- 4.8 A
Published ratings/characteristics promoted from the source; representative section used for repeated identical systems where applicable.
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
1963 Amperex Condensed
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
13000 V
RF/Industrial
Plate current
4.8 A
RF/Industrial
Output power
40000 W
RF/Industrial
Grid voltage
-1500 V
RF/Industrial
Grid current
1000 mA
RF/Industrial
Maximum frequency at full input rating
30 MHz
Capacitance
Grid-to-plate capacitance
27 pF
Grid-to-filament capacitance
45 pF
Plate-to-filament capacitance
0.6 pF