Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Characteristic
HeaterOrFilamentVoltage
10 V
HeaterOrFilamentCurrent
7 A
Other
MaximumOperatingFrequency
150 MHz
Power - Tetrode (NOT beam) ·Tetrode
RS681
Radiation-cooled one-kilowatt transmitting tetrode for RF power service. Its heavy filament and substantial dissipation suit professional transmitters.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 10 V / 7 A
Description
Radiation-cooled 1 kW transmitting tetrode for RF power 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
- 10 V
- Nominal heater current
- 7 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
Tetrode
X-ray radiationInterelectrode capacitances
- Max cathode current
- 600 mA
Published Telefunken ratings and characteristics promoted from the supplied German source.
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.