Demonstration Cathode Ray Oscilloscope CRO Manufacturer,Supplier and Exporter in India
Product Code : EL-DM-1119
Jlab Export is a leading Demonstration Cathode Ray Oscilloscope CRO Manufacturer,and suppliers in India
Demonstration Cathode Ray Oscilloscope CRO (code EL-DM-1119) is a basic CRO model for studying the working principle of each section of an oscilloscope in physics and electronics labs. Built on a printed phenolic board, it lets the instructor create a fault in any section with banana plugs or switches, and it can measure peak voltage, frequency, phase difference, pulse width, delay, rise and fall times. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | Basic demonstration model of a cathode ray oscilloscope (CRO) |
| Purpose | Study of the working principle of each section |
| Board | Phenolic sheet, top side printed |
| Fault creation | In any section, using banana plugs or switches |
| Measurements | Peak voltage, frequency, phase difference, pulse width, delay time, rise time and fall time |
| Quality check | Each model is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-DM-1119 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Demonstration CRO Used For?
Students usually meet the oscilloscope as a sealed instrument with knobs. This model opens it up. A CRO is built from a few main blocks: the cathode ray tube, whose electron gun, focusing system and deflection plates draw the trace; the vertical (Y) amplifier, which scales the input signal; the time base, which sweeps the beam across the screen at a steady rate; the trigger circuit, which starts each sweep at the same point so the waveform stands still; and the power supplies, including the high voltage for the tube. With the board printed section by section, learners can relate each block to what they see on the screen.
The model also works as a measuring instrument. Peak voltage is read from the height of the trace and the vertical sensitivity, frequency from the period measured against the time base, and phase difference by comparing two signals or a Lissajous figure; pulse width, delay, rise and fall times are read along the time axis. For fault-finding practice, the instructor uses the banana plugs or switches to disable a section and students diagnose the symptom — no trace, no sweep or an unstable picture. It suits B.Sc. physics and electronics practicals, polytechnic and ITI/TVET instrument-mechanic courses, and teacher demonstrations of the CRO topic.
What to Specify When Ordering
- Demonstration model or working oscilloscope — this section-wise teaching model, or a complete instrument such as the dual-trace oscilloscope for routine measurements.
- Quantity — the minimum order is 10 units.
- Signal source — a function generator for measurement exercises is a separate item and can be added to the same enquiry.
Frequently Asked Questions
What can be measured with this demonstration CRO?
Peak voltage, frequency, phase difference, pulse width, delay time, rise time and fall time, as listed for the model. Bandwidth and screen size are not stated, so ask JLab if your exercises need specific values.
How are faults created?
A fault can be created in any section with the banana plugs or switches provided. The listing does not name the sections individually, so request the section and fault list with your quotation.
How does it differ from the Dual Trace Oscilloscope?
The dual-trace oscilloscope is a finished two-channel instrument for everyday measurements. This model is built for teaching: its printed board shows each section and lets faults be introduced, while still measuring the quantities listed above.
Who manufactures the demonstration CRO?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of electronic lab instruments and demonstration models in India, incorporated in 2017 and working from Hargolal Road, Ambala, Haryana. The demonstration CRO is produced in JLab’s own works instead of being bought in, so schools, colleges, training institutes, dealers and importers buy it factory-direct; each unit is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example the Maldives in South Asia, Taiwan in East Asia, DR Congo in Central Africa, Indonesia in Southeast Asia and Libya in North Africa. Tender buyers can refer to the JLab lab tenders page.
Related Oscilloscopes and CRT Items
- Dual Trace Oscilloscope — a dual-channel working oscilloscope for students and professionals.
- Cathode Ray Oscilloscope — a CRO for displaying and analysing voltage signals in physics and electronics labs.
- Cathode Ray Tube — shows how an electron beam forms an image on a phosphor screen.
- A.F. Oscillator Function Generator Cum Digital — a variable audio-frequency signal source for measurement exercises.
See all models in the Demonstration Models range or the full Scientific Instrument range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button, or send the quantity (minimum 10 units), any signal source or oscilloscope you want to add, and your delivery location through the contact page.
Last updated: 9 October 2026
