FET Common Source Amplifier Manufacturer,Supplier and Exporter in India
Product Code : EL-AK-1123
Jlab Export is a leading FET Common Source Amplifier Manufacturer,and suppliers in India
FET Common Source Amplifier (code EL-AK-1123) is a trainer for studying the voltage gain and frequency response of a common source FET amplifier. It has a DC regulated power supply, a printed circuit diagram with components on the front panel and important points on terminals, in an 8 x 6 x 4 inch unit. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Circuit | FET amplifier, common source configuration |
| Studies | Voltage gain and frequency response |
| Power supply | DC regulated power supply (rating not stated in the listing) |
| Panel | Circuit diagram printed; components mounted on the front panel; important points brought out on terminals |
| Dimensions | 8 x 6 x 4 in (about 203 x 152 x 102 mm) |
| Optional instruments | Audio frequency function generator and digital AC millivoltmeter (not included) |
| Ask JLab about | FET type, supply rating and mains input |
| 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-AK-1123 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Amplifier Kits?
| Kit | Device and circuit | Studies (as listed) | Listed size |
|---|---|---|---|
| This kit (EL-AK-1123) | FET, common source | Voltage gain, frequency response | 8 x 6 x 4 in |
| Study of Transistor Amplifier Circuits | Bipolar transistor, CB, CE and CC | Frequency response, input and output impedance, negative feedback | 8 x 6 x 3 in |
| R.C. Coupled Amplifier Two Stage | Two transistors, RC coupled | Voltage gain, frequency response | Not stated |
| Biasing of Transistor BJT | One NPN transistor, four bias circuits | DC operating point with different bias methods | 8 x 6 x 4 in |
This is the kit for the field-effect transistor amplifier practical; the bipolar transistor kits cover the CE-type stage, multistage coupling and biasing.
What Is the FET Common Source Amplifier Used For?
The common source stage is the field-effect transistor counterpart of the common emitter amplifier and appears in analog electronics practicals in B.Sc. physics and electronics, diploma and engineering courses and ITI/TVET electronics trades. Students apply a small sine signal to the gate, read input and output on an AC millivoltmeter and work out the voltage gain, then step the frequency across the audio range and plot gain against frequency to find the lower and upper cut-off points and the bandwidth. The output is inverted relative to the input, and because the gate draws almost no current the stage has a very high input impedance — the main difference from a bipolar common emitter stage. Its voltage gain depends on the FET’s transconductance and the drain load.
At the low-frequency end the gain falls because of the coupling and bypass capacitors; at the high-frequency end the device and stray capacitances take over. Handle the panel with the supply off when changing connections, and keep the input signal small so the output is not clipped.
What to Specify When Ordering
- Quantity — the minimum order is 10 trainers.
- Optional instruments — an audio frequency function generator and a digital AC millivoltmeter, if your lab does not have them.
- Mains voltage at the destination and any patch cords you want included.
Frequently Asked Questions
What can be measured on this trainer?
The voltage gain and the frequency response of a common source FET amplifier. Gain is the ratio of output to input signal; the frequency response shows how that gain changes across the audio range.
How does a common source FET amplifier differ from a common emitter amplifier?
Both invert the signal and give voltage gain, but the FET stage has a far higher input impedance because its gate draws almost no current, and its gain is set by transconductance and drain load rather than by current gain.
Are a signal generator and millivoltmeter included?
No. An audio frequency function generator and a digital AC millivoltmeter are listed as optional items and can be quoted with the trainers.
What size is the unit?
The listed dimensions are 8 x 6 x 4 inches, about 203 x 152 x 102 mm.
What should an export enquiry include?
Quantity, destination country and port or city, delivery terms such as FOB or CIF, mains voltage, any packing or labelling needs and the tender reference if there is one.
Who manufactures this trainer?
Jain Laboratory Instruments Pvt Ltd (JLab), at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of electronics trainers and scientific instruments in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The FET amplifier trainer is made at JLab’s own works rather than bought in, so colleges, polytechnics, ITIs, dealers and importers buy it factory-direct; every unit is visually inspected before dispatch, and repeat orders and spares are dealt with by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Botswana in Southern Africa, Gabon in Central Africa, Papua New Guinea in Oceania, Togo in West Africa and Iceland in Northern Europe. Tender information is on the JLab lab tenders page.
Related Kits and Instruments
- FET Characteristics Apparatus — static and transfer characteristics of a FET, the groundwork for the amplifier.
- A.F. Oscillator Function Generator Cum Digital — sine signal source with a digital frequency readout.
- Dual Trace Oscilloscope — shows input and output together, including the phase inversion.
See the Amplifiers Kits range or the wider Scientific Instrument range.
Request a Quote
Quotes come direct from the manufacturer. Use Add To Cart on this page, or send the quantity (minimum 10 units), whether you need the optional generator and millivoltmeter, your mains voltage and the delivery location through the contact page.
Last updated: 9 October 2026
