Data set 01
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Triode
CrossReference
Prototype / equivalent family
12AX7
Voltage - Dual Triode (similar) ·Triode-Triode
5751WA
Military ruggedized 5751-family high-mu twin triode for dependable low-noise voltage amplification, designed for severe-service applications requiring stable electrical performance.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 12.6 V / 175 mA
Description
The 5751WA is a ruggedized high-mu twin triode for low-level input, voltage-amplifier, phase-inverter and multivibrator service, especially in military and industrial airborne equipment subject to severe mechanical conditions.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 12.6 V
- Nominal heater current
- 175 mA
- Parallel heater voltage
- 6.3 V
- Parallel heater current
- 350 mA
- Series capable
- Yes
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
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 44000 Ω
- Transconductance
- 0.0012 S
- Amplification factor
- 70
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.1 W
- Max cathode current
- 22 mA
- Rectifier max heater-cathode voltage
- 100 V
Published promoted fields populated semantically; identical repeated sections compressed.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 44000 Ω
- Transconductance
- 0.0012 S
- Amplification factor
- 70
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.1 W
- Max cathode current
- 22 mA
Second identical physical triode section; added to align rows with SectionCount.
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.
Data set 02
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Grid-to-plate capacitance each section
1.4 pF
WholeTube
Input capacitance
1.4 pF
WholeTube
Output capacitance section 1
0.7 pF
WholeTube
Output capacitance section 2
0.36 pF
WholeTube
Other
Maximum plate voltage
330 V
WholeTube
Maximum plate dissipation each section
0.8 W
WholeTube
Plate voltage
100 V
100VPoint
Grid bias voltage
-1 V
100VPoint
Amplification factor
70
100VPoint
Plate resistance
58000 ohm
100VPoint
Transconductance
1200 µS
100VPoint
Plate current
0.8 mA
100VPoint
Plate voltage
250 V
250VPoint
Grid bias voltage
-3 V
250VPoint
Amplification factor
70
250VPoint
Plate resistance
58000 ohm
250VPoint
Transconductance
1200 µS
250VPoint
Plate current
1 mA
250VPoint
Maximum DC cathode current each section
22 mA
WholeTube
Maximum heater-cathode voltage
100 V
WholeTube