Electronic Components · Voltage Regulator Tubes
VG-33 Glow Discharge Voltage Regulator
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
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 Type | Glow Discharge Regulator (Stabilovolt) |
|---|---|
| Stabilization Voltage | 33 V |
| Current Range | 5–30 mA |
| Drop Voltage | <5 V |
| Ionization Gas | Ne/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.

