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Hydrogen Spectrum Set
Hydrogen Spectrum Set (Product Code: SCL/AG26-108) is a three-unit set of a hydrogen-filled discharge tube, its power supply unit and a support rod assembly, used to produce the line spectrum of hydrogen for study in college and senior school physics laboratories. The self-contained power unit delivers 3kV at 3mA, and the tube’s metal end cap is fully hidden to protect users from accidental contact. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Set composition | Three units: discharge tube, power supply unit, rod assembly |
| Discharge tube | Straight pattern, filled with hydrogen, capillary length 50mm |
| Tube connections | 4mm plug at each end; metal end cap completely hidden to avoid shocks from touch |
| Power unit output | 3kV and 3mA, rms, 50 Hz |
| Power unit top (metal) | ON/OFF switch, pilot lamp, 1A fuse, rod assembly and recessed rubber socket that takes the tube and makes contact with the live side of the circuit |
| Rod assembly | Screw-in support rod, 260mm long, with a horizontal rod at its upper end secured and adjusted by a lock-screw, and a 4mm aperture for tube connection |
| Power unit housing | Plastic box, 168mm x 92mm x 85mm (length, height, width), on four plastic feet |
| Also included | Tommy-bar that screws into the power unit top |
| Product code | SCL/AG26-108 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Hydrogen Spectrum Set Used For?
When the power unit is switched on, the high voltage makes the hydrogen in the capillary glow. Viewed through a direct-vision spectroscope, diffraction grating or prism spectrometer, the light splits into a few sharp coloured lines, red, blue-green and violet, instead of a continuous rainbow. This line spectrum is the classic evidence that electrons in atoms occupy fixed energy levels, and it leads directly to the Balmer series and the Rydberg equation.
Set the tube upright in the rubber socket, clamp its top in the horizontal rod, and line the glowing capillary up with the slit of your spectrometer to measure line positions. Always switch off before inserting or removing a tube, let the tube cool after use, and keep the session under teacher supervision because the unit works at 3kV.
What to Specify When Ordering
- Your mains supply, as the input voltage is not stated in the listing; we will confirm it before quoting.
- Whether spare hydrogen discharge tubes should be quoted with the set.
- Any spectroscope or spectrometer needed to view and measure the lines.
Supplier
The Hydrogen Spectrum Set is supplied by Jain Scientific Equipments Private Limited, known as ScienceLab, from Ambala, Haryana, India. We source the complete three-unit set for colleges, schools, universities, dealers and importers, and can group it with spectrometers, spectroscopes and other optics apparatus in a single order for India and international markets. Find out more on our company profile.
Related Physics Lab Equipment
Instruments and light sources used alongside the Hydrogen Spectrum Set:
- Spectroscope, Direct Vision — quick hand-held viewing of the hydrogen lines.
- Spectrometer — for measuring line positions and working out wavelengths.
- Sodium Spectral Lamp — a second line source for comparing spectra.
- Spectrum Tube Power Supply — an alternative supply for running spectrum tubes.
- Spectral Tube Set with Voltage Source (for high school) — a multi-gas option for comparing elements.
See the complete Physics Lab Equipment range for further optics and atomic physics apparatus.
Frequently Asked Questions
What is included in the Hydrogen Spectrum Set?
The Hydrogen Spectrum Set has three units: a straight-pattern hydrogen discharge tube with 50mm capillary and 4mm plugs, a self-contained power supply unit in a 168mm x 92mm x 85mm plastic box, and a rod assembly with a 260mm support rod. A tommy-bar is also included.
What is the output of the Hydrogen Spectrum Set power unit?
The power unit of the Hydrogen Spectrum Set gives 3kV and 3mA, rms, at 50 Hz. Its metal top carries an ON/OFF switch, pilot lamp and 1A fuse, plus the recessed rubber socket that holds the discharge tube.
How does the Hydrogen Spectrum Set protect users from shock?
In the Hydrogen Spectrum Set, the metal end cap of the discharge tube is completely hidden so it cannot be touched, and the tube sits in a recessed rubber socket. Even so, users should switch off before handling the tube, as the unit operates at 3kV.
What else is needed to study spectra with the Hydrogen Spectrum Set?
To study spectra with the Hydrogen Spectrum Set you also need a way to split the light, such as a direct-vision spectroscope, a diffraction grating or a spectrometer. These are not part of the set but can be quoted together with it.
Who supplies the Hydrogen Spectrum Set?
The Hydrogen Spectrum Set is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to colleges, schools, universities, dealers and importers. It can be shipped with other optics and atomic physics items to buyers in India and international markets.
What details are needed for a Hydrogen Spectrum Set quotation?
For a Hydrogen Spectrum Set quotation, send the number of sets, your mains voltage, whether spare tubes or a spectrometer should be added, and the delivery location. Use the contact page and we will reply with a quotation.
Request a Quote
To request a quotation for the Hydrogen Spectrum Set, contact us through the contact page or add the set to the enquiry cart together with the spectroscope or spectrometer you plan to use.
Last updated: 24 September 2026
