Power Supplies and Transformers Manufacturer, Suppliers and Exporter in India
Jlabexport is a leading Power Supplies and Transformers Manufacturer,and suppliers in India, United States, Indonesia, Brazil, Bangladesh, Mexico, Japan, Egypt, Philippines, Democratic Republic of the Congo, Vietnam, Iran, Turkey, Tanzania, United Kingdom, France, South Africa, Italy, Kenya, Colombia, Sudan, Uganda, South Korea, Argentina, Afghanistan, Yemen, Angola, Morocco, Poland, Uzbekistan, Mozambique, Malaysia, Ghana, Saudi Arabia, Peru, Madagascar, Côte d’Ivoire, Cameroon, Niger, Venezuela, Australia, Syria, Mali, Burkina Faso, Sri Lanka, Malawi, Zambia, Chad, Kazakhstan, Somalia, Chile, Senegal, Ecuador, Cambodia, Zimbabwe, Guinea, Benin, Rwanda, Burundi, Bolivia, South Sudan, Tunisia, Haiti, Belgium, Dominican Republic, Jordan, United Arab Emirates, Honduras, Tajikistan, Papua New Guinea, Portugal, Togo, Sierra Leone, Belarus, Laos, Turkmenistan, Libya, Kyrgyzstan, Nicaragua, Paraguay, Bulgaria, Serbia, Republic of the Congo, Lebanon, Liberia, Central African Republic, Palestine, Oman, Mauritania, New Zealand, Costa Rica, Kuwait, Panama, Croatia, Georgia, Eritrea, Mongolia, Uruguay, Qatar, Namibia, Bosnia and Herzegovina, Moldova, Armenia, Gambia, Jamaica, Lithuania, Albania, Gabon, Botswana, Lesotho, Guinea-Bissau, Slovenia, Equatorial Guinea, Latvia, North Macedonia, Bahrain, Trinidad and Tobago, Timor-Leste, Cyprus, Estonia, Eswatini, Mauritius, Djibouti, Fiji, Comoros, Solomon Islands, Guyana, Bhutan, Luxembourg, Suriname, Montenegro, Malta, Maldives, Cabo Verde, Brunei, Belize, Bahamas, Iceland, Vanuatu, Barbados, São Tomé and Príncipe, Samoa, Saint Lucia, Kiribati, Seychelles, Grenada, Saint Vincent and the Grenadines, Antigua and Barbuda.
Last updated: 22 October 2026
Quick Answer
This range covers laboratory power units and transformers for electronics and physics benches: HT, LT and bias units for valve experiments, fixed IC regulated and dual outputs, variable digital and high voltage bench units up to 1500 V, battery chargers and eliminators, and transformers and variacs for AC work. JLab currently offers 18 items in this category, grouped by the job each power unit does.
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Explore the Power Supplies and Transformers Range
| Range | Items | What it covers |
|---|---|---|
| Valve and Electrophoresis Power Supplies | 5 | HT, LT and bias power units for diode, triode, tetrode and pentode valve experiments, with HT up to 300 V and LT of 6.3 V at 3 A, and a 0 to 300 V, 100 mA unit for electrophoresis. |
| Fixed IC Regulated Power Supplies | 3 | IC regulated fixed-voltage units from 5 V to 18 V at 500 mA or 1 A, dual fixed versions from ±5 V to ±18 V, and a four-output +5, -5, +12 and -12 V unit at 300 mA. |
| Variable, Dual and High Voltage Bench Supplies | 5 | Digital 0-15 V and 0-30 V units from 1 A to 10 A, 0-30 V and 0-15 V dual units, a 0-30 V 3 A unit and a 0 to 1500 V high voltage unit with positive or negative output. |
| Battery Chargers and Eliminators | 3 | Battery chargers in steel cabinets with a full-wave bridge, fuse and output current meter, and battery eliminators giving 2 to 6 V or 2 to 12 V at 1 A to 6 A. |
| Transformers and Variacs | 2 | Transformers wound with double-enamelled copper wire on silicon alloy steel cores, and dimmerstat variable autotransformers giving 0-240 V or 0-270 V at 2 A to 8 A. |
Power Supplies and Transformers Specifications
The tables give the outputs, current ratings, regulation and meters stated on each unit's own page.
Valve and Electrophoresis Power Supplies (5)
| Product | Specification |
|---|---|
| Power Supply for Triode Valve Experiment Model | HT output: 0 to 300 V, 50 mA; LT output: 6.3 V, 3 A; Bias output: 0 to 25 V, positive and negative. |
| Power Supply for Tetrode and Pentode Valve Model | HT1 output: 0 to 300 V, 50 mA; HT2 output: 0 to 300 V, 25 mA; Meters: Five. |
| Power Supply for Electrophoresis Experiment Model | Output range: 0 to 300 V; Current: 100 mA; Duty: Continuous working. |
| Power Supplies for Diode Valve Experiment Model | HT output: 0 to 300 V, 30 mA; Meters: Two, for voltage and current. |
Fixed IC Regulated Power Supplies (3)
| Product | Specification |
|---|---|
| Fixed Voltage IC Regulated Power Supplies | Versions at 500 mA: 5 V or 6 V; 9 V or 12 V; 15 V or 18 V; Versions at 1 A: 5 V or 6 V; 9 V or 12 V; 15 V or 18 V; Suited to: Training boards for the 741 op-amp, 555 timer and 723 regulator ICs. |
| Regulated Power Supply Model | Outputs: Four fixed voltages: +5 V, −5 V, +12 V and −12 V; Current: 300 mA max. for each output; Regulation: ±0.05%, no load to full load. |
| Fixed Voltage IC Regulated Dual Power Supplies | Outputs: Two fixed voltages per unit, IC regulated; Model (a): ±5 V or ±6 V at 500 mA; Model (c): ±9 V or ±12 V at 500 mA. |
Variable, Dual and High Voltage Bench Supplies (5)
| Product | Specification |
|---|---|
| Digital Regulated Power Supply | Output voltage: 0–15 V or 0–30 V, depending on version; Output current rating: 1 A, 2 A, 3 A, 5 A or 10 A, depending on version; Meters: Two digital panel meters (2DPM), 3½-digit display, on every version. |
| High Voltage Power Supply Model | Output voltage: 0 to 1500 V, continuously variable (1500 V maximum); Load current: 1 mA; Display: 3½-digit, 7-segment LED display with auto polarity. |
| Dual Power Supply 0-30 Volt 1 Amp | Positive output: 0–30 V at 1 A; Negative output: 0–30 V at 1 A; Stabilization: ±0.1%. |
| Power Supply 0-30 Volts 3 Amp | Output voltage: 0 to 30 V DC, continuously variable; Output current: 0 to 3 A, continuous; Load regulation: ±0.01%. |
Battery Chargers and Eliminators (3)
| Product | Specification |
|---|---|
| Battery Chargers | Rectifier circuit: Full-wave bridge; Protection: Fuse; Metering: Meter for the output current. |
| Battery Eliminator | Models: TE-23, TE-24, TE-25, TE-26, TE-27 and TE-28; Output range: 2 to 6 V (TE-23) or 2 to 12 V (TE-24 to TE-28); Current rating: From 1 A (TE-23) to 6 A (TE-28). |
| Battery Eliminators | Output voltage selection: Socket or band-switch; Output ranges: 2 to 6 V, or 2 to 12 V, depending on version. |
Transformers and Variacs (2)
| Product | Specification |
|---|---|
| Dimmerstat Variac and Autotransformer | Output voltage: 0–240 V (line voltage connection); 0–270 V (over-voltage connection); Current capacity: 2 A, 4 A, 6 A or 8 A — the 0–270 V output range is the same for each; Brush contact: Carbon brush that covers at least one turn of wire at all times. |
| Transformers and Stabilizers | Winding wire: Double-enamelled copper wire; Core: Silicon alloy steel; Treatment: Vacuum impregnated. |
Who Buys This Range
College physics and electronics laboratories that power valve, transistor, op-amp and IC experiments from HT, dual and fixed regulated units, biology laboratories that run electrophoresis on the 0 to 300 V unit, and workshops that charge batteries or need variable AC from a dimmerstat.
Frequently Asked Questions
Which power supply is used for the triode valve experiment?
The Power Supply for Triode Valve Experiment Model gives HT of 0 to 300 V at 50 mA, LT of 6.3 V at 3 A and a bias of 0 to 25 V positive and negative, with three meters for HT voltage, HT current and bias voltage, on 220 V, 50 Hz mains.
What outputs does the Digital Regulated Power Supply offer?
It comes in ten versions: 0-15 V at 1 A, 2 A, 3 A, 5 A or 10 A, and 0-30 V at the same five current ratings, each with two digital panel meters.
What output does the Dimmerstat Variac and Autotransformer give?
It is a variable autotransformer on 240 V mains that gives 0-240 V in the line-voltage connection or 0-270 V in the over-voltage connection, at 2 A, 4 A, 6 A or 8 A, with a carbon brush, insulated 4 mm sockets, a 3-pin 5 A socket and a slow-blow fuse.
Request a Quote
Send the power units and quantities you need, for example the Power Supply 0-30 Volts 3 Amp or the Dimmerstat Variac and Autotransformer, through the contact page.
Power Supplies for Diode Valve Experiment Model
Product Code : EL-PSAT-1205
Output HT = 0 to 300 Volts 30mA. LT. Variable to 1 to 6, 3 Amps with 2 meters for Volt/Current.
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Power Supply for Triode Valve Experiment Model
Product Code : EL-PSAT-1207
Stabilised power supply for the triode valve experiment: HT 0 to 300 V at 50 mA, LT 6.3 V at 3 A, bias 0 to 25 V positive and negative.
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Power Supply for Electrophoresis Experiment Model
Product Code : EL-PSAT-1208
Stabilised power supply having Range 0-300 V current 100mA.
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Fixed Voltage IC Regulated Dual Power Supplies
Product Code : EL-PSAT-1211
Two fixed voltages are provided in this unit.
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Regulated Power Supply Model
Product Code : EL-PSAT-1212
General-purpose laboratory power source for analog and digital ICs, with four fixed outputs: +5 V, -5 V, +12 V and -12 V.
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Dual Power Supply 0-30 Volt 1 Amp
Product Code : EL-PSAT-1215
Dual power supply for transistor and IC experiments: 0-30 V at 1 A positive and 0-30 V at 1 A negative, stabilization +/-0.1%, four meters, 220 V 50 Hz.
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Power Supply 0-30 Volts 3 Amp
Product Code : EL-PSAT-1217
This supply is designed to meet requirement of general laboratory continuously variable 0 to 30 V.D.C. at current 0 to 3 Amps, continuous.
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Battery Chargers
Product Code : EL-PSAT-1218
Battery chargers housed in a steel cabinet for 220 V 50 Hz mains, fuse protected, with an output current meter and full-wave bridge circuit; 6/12 V and 18 V versions.
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Battery Eliminators
Product Code : EL-PSAT-1219
Socket or Band-Switch provided for Selection of Volts output, with ON/OFF switch and main indication.
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