Spectral Tube Set with Voltage Source (for high school) Manufacturer,Supplier and Exporter in India

Spectral Tube Set with Voltage Source (for high school) (Product Code: SCL267/043) contains five gas discharge tubes and the high voltage source needed to light them, so a class can see the characteristic glow and emission lines of different gases. When the source is connected, an electrical discharge passes through the gas and the tube lights up in a colour that belongs to that gas alone. The set is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, and is a natural companion to a spectrometer in India’s school and college physics labs.

Specifications

Typical Use

Fit one tube into the support, switch on, and darken the room: the narrow middle section glows brightly, and each gas gives a visibly different colour, with neon’s red-orange standing out at once. Viewing the glowing capillary through a spectroscope or a direct-vision spectroscope then reveals a set of separate bright lines rather than a rainbow. Hydrogen is usually studied first because its few visible lines are easy to pick out and connect to the energy levels of the atom.

Working through all five gases lets students build their own table of spectral fingerprints and discuss how astronomers identify elements in stars. The source works at high voltage, so switch it off before changing tubes, let each tube cool for a moment, and hold tubes by their ends. Treat the set as teacher-operated physics lab equipment for India’s senior secondary classes.

Manufacturer

Jain Scientific Equipments Private Limited manufactures laboratory apparatus at its factory in Ambala, Haryana, and markets this spectral tube set under the ScienceLab brand for physics and chemistry teaching. More about the company is on our company profile.

Related Lab Equipment

These items are used with the spectral tubes in emission spectra practicals:

• Spectroscope (for high school) — resolves the glow of each tube into separate lines.
• Spectroscope, Direct Vision — lets several students view the lines quickly by hand.
• Hydrogen Spectrum Set — a focused option for detailed hydrogen line work.
• Spectrum Tube Power Supply — an additional source when running two tubes side by side.
• Sodium Spectral Lamp — a reference line source for comparison.

Browse the Lab Equipment category for more.

Frequently Asked Questions

Which gases are in the set?
Five tubes filled with hydrogen, oxygen, argon, carbon dioxide and neon, each about 200 mm long with an electrode at each end.

Is the voltage source included?
Yes. The set includes a high voltage source with an adaptable support for connecting the tubes. Its power consumption is 4.5 W.

Why is each tube narrow in the middle?
The narrow section concentrates the discharge into a bright, thin line of light, which is ideal for viewing through a spectroscope slit.

Is a spectroscope needed?
The colour differences are visible by eye, but separate emission lines can only be seen with a spectroscope. See the related items above or contact us for a combined quotation.

Can students operate the set?
Because the source produces high voltage, a teacher should connect and switch it. Students can view the tubes and record observations safely from the bench.

Can replacement tubes be ordered?
Please contact us with the gas you need. We will confirm whether single tubes can be supplied for your set.

What should a school quotation request include?
Include code SCL267/043, the number of sets and your delivery location. We supply schools in India and international markets.

Request a Quote

Send your enquiry for the Spectral Tube Set with Voltage Source via the contact page, or add it to the enquiry cart together with a spectroscope.

Last updated: 24 September 2026