- Base
- Refer to variations
- Socket code
- J5
- Sections
- 1
- Heater
- 5 V / 7.5 A
- Plate
- 4,000 V / 125 W
- Screen
- 750 V / 20 W
- gm
- 2.15 mA/V
J5 - Jumbo 5-contact
Higher-dissipation 4E27 transmitting tube for RF amplification, oscillator and modulator service, capable of hundreds of watts Class-C RF output.
