Operational Amplifier Trainer DC Power Supply

Product Code : SCL-EAE-12037

Operational Amplifier Trainer DC Power Supply (SKU SCL-EAE-12037) is a self-contained op-amp trainer with a built-in regulated ±15 V DC supply, two 741 op-amps and onboard resistors, capacitors and potentiometers behind a printed schematic panel. Engineering and electronics students use it to build and test linear IC circuits without a separate bench supply. Science Lab Supplies makes it in its own factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and supplies colleges, institutes, tender contractors and distributors directly.

Specifications

All specifications are given in the table below. In brief, a 220–240 V AC input feeds a regulated, short-circuit-proof ±15 V DC supply at 500 mA, powering two socketed 741 op-amps that are patched to resistors, capacitors and 1 kΩ and 10 kΩ potentiometers through 4 mm sockets, inside a powder-coated steel case.

Applications and Experiments for the Op-Amp Trainer

Students patch the onboard op-amps into classic configurations and compare measured gain and waveform shape with theory. The trainer fits B.Tech and diploma analog electronics labs, B.Sc. electronics practicals and ITI electronics mechanic training, wherever linear IC circuits are part of the syllabus.

• Amplifiers: inverting, non-inverting, summing and differential configurations, and voltage followers.
• Analog computation: differentiator and integrator circuits.
• Signal conditioning: active filter practice with the onboard components and external parts patched in.
• Test set-up: a signal from a Bench Signal Generator at the input, with the output viewed on an Oscilloscope.

Switch the trainer off before moving patch cords, so the ICs are not exposed to voltage spikes.

Standard Scope of Supply

Each trainer is supplied with the main workstation unit, 15 colour-coded 4 mm banana patch cords in red, black and blue, a detachable 3-pin AC mains cable and an English operations manual with wiring diagrams and lab tasks. A signal generator and oscilloscope are separate items.

Packing, MOQ and Lead Time

One trainer or a full set for an analog electronics lab can be quoted. Science Lab Supplies shows packing, delivery time and price for the quantity requested, and a signal generator, oscilloscope or other trainers can be priced on the same quotation.

Under its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Ethiopia, Tanzania, Uganda, the UAE, Saudi Arabia and Oman. Ask for the trainer's price on the contact page or add it to the enquiry cart; tender buyers should see the lab tender page.

Frequently Asked Questions

Does it need an external bench power supply?
No. The integrated dual-regulated ±15 V DC supply, rated 500 mA per rail, runs directly from 220–240 V AC mains and powers the onboard op-amps and circuits.

Are the 741 op-amps replaceable?
Yes. The two 741 op-amps sit in dual-in-line (DIP) IC sockets rather than being soldered, so a damaged IC can be replaced simply by the lab technician.

How does it compare with the Operational Amplifier Trainer Power Supply?
The Operational Amplifier Trainer Power Supply gives ±5 V and ±12 V fixed rails, a 1.2–10 V variable supply and a function generator up to 100 kHz. This model concentrates on a ±15 V supply at 500 mA with two 741 op-amps.

Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer. Its factory in Saha, Ambala, India builds this op-amp trainer, and every quotation for it is issued by the factory itself.

Related Analog and Digital Electronics Trainers

These trainers from the Electrical and Electronics range cover neighbouring topics, from other op-amp models to discrete components and digital ICs, so an electronics lab can be equipped in stages on a single quotation, with this trainer at the centre of the analog bench.

• Operational Amplifier Trainer IC Regulated D.C. Power Supply — IC-regulated ±15 V at 500 mA, 741 op-amps in 8-pin DIP sockets.
• Operational Amplifier Trainer 3 DC Regulated — two 0–1.5 V variable supplies, ±15 V and two dual-range moving-coil meters.
• Analog & Logic Circuit Training Board — fixed and variable rails, 10 Hz to 100 kHz generator and 1660-point breadboard.
• Analog & Digital IC trainer Board kit — 10 logic inputs, sine, square and triangular generation, 1 kΩ and 100 kΩ potentiometers.
• Discrete Component Trainer Circurt Board — BC547, BC557 and 1N4007 devices with +5 V and +12 V rails.
• Digital IC Trainer with Digital Voltmeter — 1660-point breadboard and a 0–20 V, 3.5-digit voltmeter.

Browse the full Electrical and Electronics range, the Lab Meters range for meters used beside the trainer, or all physics lab equipment.

Last updated: 9 October 2026