Data set 01
1971 Machlette Laboratories
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Frequency for Maximum Ratings
3000 MHz
Power - Triode (over 1000V 100W) ·Triode
7209
Rugged planar triode for pulsed RF service to approximately 3 GHz.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6 V / 1 A
Description
Rugged planar triode for pulsed RF service to 3 GHz.
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
- 6 V
- Nominal heater current
- 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
- 0.025 S
- Amplification factor
- 100
- Max plate voltage
- 1000 V
- Max plate dissipation
- 100 W
- Max grid dissipation
- 1.5 W
- Max cathode current
- 48 mA
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.