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Triode - HV Shunt Regulator ·Triode

6LH6A

Beam triode used for shunt regulation of high-voltage, low-current television power supplies, with explicit X-radiation safety limits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 8MQ
Socket code: -
Base pins: 8
Nominal heater: 6.3 V / 200 mA

Description

Beam triode used for shunt regulation of high-voltage, low-current television power supplies; datasheet includes X-radiation safety limits.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8MQ
Socket code: -
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 200 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8MQ - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 27000 V
Max plate dissipation: 40 W

Beam triode for shunt voltage-regulator service; X-radiation characteristic is explicitly 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.

Data set 01

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Voltage
6.3 V
Nominal
Heater Current
200 mA
Nominal
Heater-Cathode Voltage
-450 V
Negative only; positive not recommended
Negative Grid Voltage
135 V
Peak Negative Grid Voltage
440 V
Average Plate Current
1.5 mA
Unregulated DC Supply Voltage
36000 V
ShuntVoltageRegulator
Equivalent Resistance of Unregulated Supply
11 megohm
ShuntVoltageRegulator
DC Reference Voltage
200 V
ShuntVoltageRegulator
Regulated DC Output Voltage
26000 V
LoadCurrent=0mA
Regulated DC Output Voltage
24500 V
LoadCurrent=1mA
X-Radiation Maximum Statistical Value
0.5 mR/hr
LotSampling

Capacitance

Grid-to-Plate Capacitance
1 pF
Grid-to-Cathode-and-Heater Capacitance
2.6 pF
Plate-to-Cathode-and-Heater Capacitance
1 pF

Characteristic

Effective Grid-Plate Transconductance
200 uS
ShuntVoltageRegulator