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Electronic Components · Voltage Regulator Tubes

VG-33 Glow Discharge Voltage Regulator

Available on request Various VG-33

Glow-discharge voltage regulator tube with 33 V stabilization voltage for precision DC reference and voltage regulation in legacy electronic equipment.

Stabilization Voltage
33 V
Current Range
5–30 mA
Drop Voltage
<5 V
Ionization Gas
Ne/He
Worldwide shipping Cross-reference support Grunius BV · Groningen, NL

About the VG-33

The VG-33 is a voltage regulator tube. Glow-discharge voltage regulator tube with 33 V stabilization voltage for precision DC reference and voltage regulation in legacy electronic equipment.

Key ratings of the VG-33 include tube type Glow Discharge Regulator (Stabilovolt), stabilization voltage 33 V, current range 5–30 mA, drop voltage <5 V and ionization gas Ne/He.

Typical applications are DC voltage references, legacy transmitter power supplies, precision analog instrumentation, military-spec power regulation and vintage electronic equipment repair. Notable features: 33 V precision stabilization, 5–30 mA operating range, neon/helium gas fill and hermetically sealed envelope.

Gas-discharge voltage regulator tubes provide a stable reference voltage in legacy instrumentation, military equipment and vintage electronics.

PartnerTubes supplies the VG-33 worldwide from Groningen, the Netherlands — availability, lead time and price are confirmed per enquiry. Our team can help with equivalent and cross-reference types, sockets and accessories, and supply programmes for OEM and maintenance customers. Interchangeability must always be confirmed for the specific equipment.

Technical specifications

Tube TypeGlow Discharge Regulator (Stabilovolt)
Stabilization Voltage33 V
Current Range5–30 mA
Drop Voltage<5 V
Ionization GasNe/He

Specifications are indicative and based on published manufacturer data. Always verify against the official datasheet and confirm suitability for your application before ordering.

Applications & features

Used in

  • DC voltage references
  • Legacy transmitter power supplies
  • Precision analog instrumentation
  • Military-spec power regulation
  • Vintage electronic equipment repair

Key features

  • 33 V precision stabilization
  • 5–30 mA operating range
  • Neon/helium gas fill
  • Hermetically sealed envelope
  • Maintenance-free operation

Frequently asked questions

What is the VG-33?

The VG-33 is a voltage regulator tube. Glow-discharge voltage regulator tube with 33 V stabilization voltage for precision DC reference and voltage regulation in legacy electronic equipment.

What are the specifications of the VG-33?

Tube Type: Glow Discharge Regulator (Stabilovolt); Stabilization Voltage: 33 V; Current Range: 5–30 mA; Drop Voltage: <5 V; Ionization Gas: Ne/He.

What is the VG-33 used for?

The VG-33 is used in DC voltage references, legacy transmitter power supplies, precision analog instrumentation, military-spec power regulation and vintage electronic equipment repair.

What are alternatives or related parts to the VG-33?

Related and comparable parts include VG-68, OG-4, GS-12, CX8503C, GKh-12A and ITG3-1-7.5. Contact PartnerTubes to confirm interchangeability for your equipment.

Where can I buy the VG-33?

The VG-33 is available from PartnerTubes (Grunius BV, Groningen, Netherlands) with worldwide shipping. Availability and lead time are confirmed on request. Request a quote at https://www.partnertubes.com/contact/?part=VG-33 or email info@partnertubes.com.