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Jlabexport is a leading Study of Multivibrators 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

Study of Multivibrators trainers show how square, rectangular and pulse waveforms are generated and switched: astable, monostable and bistable circuits built either on the IC 555 timer or on discrete transistors. The 555 boards keep the timer, resistors and capacitors in the cabinet with connections on sockets and a 5 V regulated supply. JLab currently has 8 trainers in this category, four with IC 555 and four with transistors.

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Explore the Study of Multivibrators Range

Range	Items	What it covers
IC 555 Multivibrator Trainers	4	IC 555 trainers for the monostable, astable and bistable modes and a combined monostable and free-running board, with the timer and timing components inside the cabinet, a 5 V regulated supply and connections on sockets.
Transistor Multivibrator Trainers	4	Transistor trainers for astable (cross-coupled, square wave), bistable (two transistors, 12 V supply) and monostable with free-running circuits, plus one board with all three multivibrator types.

Study of Multivibrators Specifications

The tables give the circuit, timing parts, supply and triggering stated on each trainer's own page.

IC 555 Multivibrator Trainers (4)

Product	Specification
Astable Multivibrator using IC 555	Experiment: Wave shape and frequency produced by an astable multivibrator using the 555 timer; Timing components: Various resistors and capacitors connected inside the cabinet; connections brought out at sockets; Power supply: DC regulated, 5 V.
Bistable Multivibrator using IC 555	Power supply: DC regulated, 5 V, available on sockets; Trigger switches: Two push-to-ON switches on the front panel, active low and active high.
Monostable and Free Running Multivibrators using IC 555	Trigger input: Provision to connect a trigger input (square wave of small duty cycle); Circuit diagram: Printed; components placed on the front panel.
Monostable Multivibrator using IC 555	Timer IC: IC 555; Supplied with: Set of patch cords; user’s manual.

Transistor Multivibrator Trainers (4)

Product	Specification
Astable Multivibrator using Transistors	Circuit: Cross-coupled transistor network (astable, free-running); Output: Sharp, continuous square wave; Triggering: No external trigger needed.
Bistable Multivibrator using Transistors	Transistors: Two, mounted on the front panel; Power supply: Fixed DC regulated, 12 V; Passive components: Combination of resistors and capacitors for biasing the circuit and taking the output.
Monostable and Free Running Multivibrators using Transistors	Circuits: Monostable and free-running multivibrators using transistors; Waveforms: Square, rectangular and pulse waves.
Astable, Monostable and Bistable Multivibrator using Transistor	Circuits: Astable, monostable and bistable multivibrators; Active devices: Transistors.

Who Buys This Range

College electronics and physics laboratories and engineering diploma courses that study pulse and switching circuits, comparing IC 555 and transistor versions of the astable, monostable and bistable multivibrator and measuring their wave shape and frequency.

Frequently Asked Questions

What is the difference between the IC 555 and transistor multivibrator trainers?
The IC 555 trainers build each circuit around the 555 timer, with the timer, resistors and capacitors inside the cabinet and a 5 V regulated supply on sockets. The transistor trainers use discrete transistors; the bistable board, for example, has two transistors on the front panel and a fixed 12 V regulated supply.

How is the Bistable Multivibrator using IC 555 triggered?
It has two push-to-ON switches on the front panel, one active low and one active high, with the IC 555, resistors and capacitors inside the cabinet and a 5 V regulated supply available on sockets.

What does the Astable Multivibrator using Transistors produce?
It is a cross-coupled transistor network that produces a sharp, continuous square wave, switching between two unstable states through regenerative switching with positive feedback, without any external trigger.

Request a Quote

List the trainers and quantities you need, for example the Astable Multivibrator using IC 555 or the Bistable Multivibrator using Transistors, and send it through the contact page.