Demonstration Model for Experiments of MW Radio Circuits Manufacturer,Supplier and Exporter in India
Product Code : EL-DM-1118
Jlab Export is a leading Demonstration Model for Experiments of MW Radio Circuits Manufacturer,and suppliers in India
Demonstration Model for Experiments of MW Radio Circuits (code EL-DM-1118) is a medium-wave (MW) transistor radio trainer for studying how each stage of a receiver works, its common faults, and its signal-to-noise and output performance. The circuit is laid out on a screen-printed phenolic board with power supply, AGC, IF, oscillator, antenna and output sections, and comes with a 6 V DC supply and a speaker. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Studies covered | Working and various faults of an MW transistor receiver; signal/noise and output |
| Sections | Power supply, AGC, IF, oscillator, antenna and output sections |
| Board | Phenolic sheet, top side screen printed with the circuit diagram drawn |
| Wiring | Components soldered along the circuit; important connections brought out on terminals |
| Power supply | 6 V DC power supply provided |
| Speaker | 4 inch (about 10 cm), 8 ohm speaker provided |
| Quality check | Each trainer 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-1118 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the MW Radio Circuits Trainer Used For?
An MW transistor receiver is the classic superheterodyne set taught in electronics courses. The antenna section picks up and tunes the station, the oscillator section mixes it down to a fixed intermediate frequency, the IF section provides most of the gain and selectivity, the audio is recovered and the output section drives the speaker. The AGC (automatic gain control) loop uses the detected signal level to turn the gain down on strong stations, so the volume stays steadier as signal strength changes. Because every section is drawn on the board and its key points are brought out to terminals, students can measure voltages and follow the signal from aerial to speaker instead of treating the radio as a closed box.
Typical exercises include tracing the signal through each stage with an oscilloscope, observing the effect of AGC, comparing signal against background noise, checking the audio output, and locating faults the instructor introduces. The trainer suits electronics mechanic and radio-servicing courses in ITI and TVET workshops, polytechnic diploma labs and B.Sc. electronics practicals. Switch the supply off before changing connections at the terminals.
What to Specify When Ordering
- Radio only or two-in-one — this MW radio board, or the two-in-one trainer that adds a cassette player and tape recorder.
- Quantity — the minimum order is 10 units.
- Test instruments — an oscilloscope, multimeter or AF signal source for signal tracing is a separate item that can go on the same enquiry.
Frequently Asked Questions
Which sections of the radio receiver can be studied?
The power supply, AGC, IF, oscillator, antenna and output sections. Each is drawn on the screen-printed board with its components soldered along the circuit and the important connections brought out on terminals.
Is a power supply and speaker included?
Yes. The trainer is provided with a 6 V DC power supply and a 4 inch, 8 ohm speaker, so it can be operated as a working receiver on the bench.
How does it differ from the two-in-one cassette player and recorder trainer?
This board concentrates on the MW receiver with terminal access to each section. The two-in-one kit also covers a cassette player and a tape recorder, with its components on PCB tags and an acrylic cover.
What should an export enquiry include?
The quantity, destination country and port or city, preferred delivery terms such as FOB or CIF, any packing or labelling needs, and the tender reference if one applies.
Who manufactures this trainer?
JLab (Jain Laboratory Instruments Pvt Ltd) makes it at its own works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an electronics trainer and scientific instrument manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The radio trainer is made at JLab’s own works, not resold from a trader, so technical institutes, colleges, dealers and importers buy it factory-direct, each board 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, Japan in East Asia, the UAE in the Middle East, Spain in Southern Europe and Germany in Western Europe. Tender information is on the JLab lab tenders page.
Related Radio and Test Equipment
- Demonstration Model of Transistor Cassette Player and Recorder Trainer Kit Two in One — adds cassette player and tape recorder fault study to the MW receiver.
- A.F. Oscillator Function Generator Cum Digital — a variable audio-frequency source for injecting test signals into the output stage.
- Digital Multimeter — for checking voltages, resistance, diodes and transistors while fault finding.
- Dual Trace Oscilloscope — a dual-channel oscilloscope for tracing the signal from stage to stage.
- Demonstration Television Black and White — the next step up, a B/W TV receiver demonstrator.
See the complete Demonstration Models range or the wider 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 test instruments to include, and your delivery location through the contact page.
Last updated: 9 October 2026
