Voltage Dual Tetrode ·Tetrode-Tetrode
17AB9
Twin tetrode designed for VHF RF amplification and autodyne mixer service, a heater-variant member of a television/radio front-end converter family.
- Sections
- 2
- Base
- -
- Socket code
- B10B
- Base pins
- 10
- Nominal heater
- 16.8 V / 150 mA
Description
The 17AB9 is a twin tetrode intended for VHF RF amplifier and VHF autodyne mixer use. The supplied registration sheet primarily documents its heater variant and references an earlier equivalent type for the remaining characteristics.
Socket description
Decal 10-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B10B
- Base pins
- 10
- Nominal heater voltage
- 16.8 V
- Nominal heater current
- 150 mA
- 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
2 physical sections, each with unique specifications.
Section 1
Tetrode
- Plate resistance
- 110000 Ω
- Transconductance
- 0.01 S
- Max plate voltage
- 250 V
- Max screen voltage
- 180 V
- Max plate dissipation
- 2 W
- Max screen dissipation
- 0.5 W
- Max cathode current
- 20 mA
Matsushita 17AB9 first physical tetrode for VHF RF amplifier/autodyne converter service, identical to 6AB9 electrical construction except heater 16.8 V, 150 mA. JEDEC 6AB9 per-unit maxima: plate 250 V, screen supply 180 V, plate dissipation 2 W, screen dissipation 0.5 W, cathode 20 mA; combined two-plate dissipation no more than 3.5 W. Typical gm 10 mA/V and plate resistance 110 kΩ at plate 125 V, screen 80 V. Capacitances documented.
Section 2
Tetrode
- Plate resistance
- 110000 Ω
- Transconductance
- 0.01 S
- Max plate voltage
- 250 V
- Max screen voltage
- 180 V
- Max plate dissipation
- 2 W
- Max screen dissipation
- 0.5 W
- Max cathode current
- 20 mA
Matsushita 17AB9 second physical tetrode, separate from first despite identical ratings. Heater 16.8 V, 150 mA; manufacturer identifies heater variant of 6AB9. Each unit max plate 250 V, screen supply 180 V, plate dissipation 2 W, screen 0.5 W and cathode current 20 mA. Both plates total dissipation limited to 3.5 W. Typical gm 10 mA/V, rp ~110 kΩ at 125 V plate, 80 V screen. Interelectrode capacitances available.
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.