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Voltage Regulator ·VoltageRegulator

STV858

Precision-oriented gas reference tube providing approximately 82.2 V at low current for measurement and stabilized electronic supplies.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

The Telefunken STV858 is a cold-cathode gas-filled voltage-stabilizer tube for regulated reference or supply service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
-
Nominal heater current
-
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

1 physical section, each with unique specifications.

Section 1

Voltage Regulator

X-ray radiationInterelectrode capacitances
Regulator voltage
82.2 V
Regulator minimum current
1.7 mA
Regulator maximum current
8 mA
Regulator starting voltage
112 V
Regulator maintaining voltage
82.2 V
Regulator dynamic impedance
500 Ω

Voltage-stabilizer discharge section.

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristics

  • Maintaining Voltage

    82.2 V

  • Minimum Regulating Current

    1.7 mA

  • Maximum Regulating Current

    8 mA

  • Starting Voltage

    112 V

  • Dynamic Impedance

    500 ohm