Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterOrFilamentVoltageNominal
16 V
HeaterOrFilamentCurrentNominal
315 mA
Voltage Dual Triode Pentode ·Pentode-Triode-Triode
16BX11
Compactron containing high-mu and medium-mu triodes plus a sharp-cutoff pentode for television video-amplifier and general-purpose signal-processing service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 3
- Base
- 12CA
- Socket code
- B12C
- Base pins
- 12
- Nominal heater
- 16 V / 315 mA
Description
Compactron containing a high-mu triode, medium-mu triode, and sharp-cutoff pentode for video-amplifier and general-purpose service.
Socket description
Duodecar 12-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 12CA
- Socket code
- B12C
- Base pins
- 12
- Nominal heater voltage
- 16 V
- Nominal heater current
- 315 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
12CA - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
3 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 6800 Ω
- Transconductance
- 0.0062 S
- Amplification factor
- 42
- Max plate voltage
- 330 V
- Max plate dissipation
- 2 W
GE 16BX11 first high-mu or medium-mu distinct triode of Compactron with second triode and sharp-cutoff video pentode. Heater 16 V 315 mA. Maximum plate voltage 330 V and dissipation 2 W. Typical characteristics at plate 150 V: gm 6.2 mA/V, mu 42 and plate resistance ~6800 ohms. GE documents physical separate triode and coupling capacitances. Manufacturer graph/table OCR ambiguity does not affect these explicit ratings.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 8400 Ω
- Transconductance
- 0.0068 S
- Amplification factor
- 57
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.5 W
GE 16BX11 second distinct triode, used for general-purpose amplification, sharing 16 V 315 mA heater with first triode and video pentode. Max plate voltage 330 V and dissipation 1.5 W. At published 150 V plate operating point: gm 6.8 mA/V, mu 57, plate resistance ~8400 ohms. Values must remain separate from first triode (mu 42). Manufacturer supplies direct interelectrode capacitances.
Section 3
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 100000 Ω
- Transconductance
- 0.0113 S
- Max plate dissipation
- 3 W
- Max screen dissipation
- 1 W
GE 16BX11 sharp-cutoff frame-grid video-amplifier pentode in 12-pin Compactron with dissimilar dual triodes. Plate dissipation 3 W, screen dissipation 1 W; nominal heater 16 V, 315 mA. Typical pentode at 125 V plate and screen: gm 11.3 mA/V, approximate plate resistance 100 kΩ. Numeric operating maximum plate/screen voltages are left unknown because the scanned source has unresolved OCR ambiguity; do not infer from plate supply or operating values. Capacitance and inter-section coupling figures published.
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.