- Base
- Refer to variations
- Socket code
- B9A
- Sections
- 2
- Heater
- 6.3 V / 450 mA
- Plate
- S1: 300 V / 2.8 W · S2: 300 V / 2.7 W
- Screen
- S1: 300 V / 0.5 W
- rP
- S1: 400,000 Ω · S2: 5,000 Ω
- gm
- S1: 5.2 mA/V · S2: 8.5 mA/V
- μ
- S2: 40
9 pins - B9A - Small-button Noval 9-contact
Triode-pentode designed for VHF television converter service, combining oscillator and mixer functions in one envelope.
