The Refurbished ALCO e/m Bar Magnet Apparatus (Thomson's Method) is a precision educational physics instrument designed to determine the charge-to-mass ratio (e/m) of the electron using Thomson's method. It is widely used in physics laboratories, engineering colleges, universities and educational institutions for demonstrating one of the fundamental experiments in electron physics.

The apparatus incorporates a cathode ray tube (CRT), focusing and deflection controls, accelerating voltage measurement and bar magnet arrangement to accurately study electron beam deflection under magnetic fields. It enables students to understand the principles of electromagnetism, electron motion and classical physics through hands-on laboratory experiments.

This professionally refurbished unit has been inspected, cleaned and tested to ensure dependable laboratory performance while providing a cost-effective alternative to purchasing new educational laboratory equipment.

---

Applications

The Refurbished ALCO e/m Bar Magnet Apparatus (Thomson's Method) is suitable for:

• Physics Laboratories
• Engineering Colleges
• University Physics Departments
• Educational Laboratories
• Electronics Laboratories
• Quantum Physics Demonstrations
• Electron Beam Experiments
• Electromagnetism Studies
• Undergraduate Physics Experiments
• Postgraduate Physics Laboratories
• Technical Institutes
• Science Colleges
• Laboratory Demonstrations
• Experimental Physics
• Engineering Education
• Educational Research
• Practical Electronics Training
• Scientific Education
• Laboratory Skill Development
• Physics Teaching Laboratories

---

Key Features

• Designed for e/m determination using Thomson's Method
• Integrated Cathode Ray Tube (CRT) interface
• Built-in accelerating voltage meter
• Electron beam focusing control
• Deflection control adjustment
• X-shift positioning control
• Reverse polarity switch
• Stable laboratory performance
• Compact bench-top design
• Durable educational construction
• Professionally refurbished and tested

---

Technical Specifications

---

Instrument Features

• Electron beam focusing adjustment
• Accurate accelerating voltage monitoring
• Stable electron beam control
• Magnetic field experimentation
• Precision laboratory measurements
• Durable laboratory design
• Easy experimental setup
• Reliable educational performance
• Compact laboratory footprint
• Low maintenance requirements

---

Benefits

The Refurbished ALCO e/m Bar Magnet Apparatus (Thomson's Method) enables students to experimentally determine the charge-to-mass ratio of an electron, providing a practical understanding of electron dynamics and electromagnetic theory. Its precision controls and reliable operation make it ideal for educational laboratories and engineering institutions.

Choosing a refurbished instrument significantly reduces laboratory equipment costs while maintaining dependable performance for academic teaching, demonstrations and experimental research.

---

Why Choose Refurbished?

Each Refurbished ALCO e/m Bar Magnet Apparatus (Thomson's Method) undergoes professional inspection, cleaning and functional testing before shipment. Refurbished laboratory equipment provides dependable performance, excellent value and supports sustainable laboratory operations by extending the service life of quality scientific instruments.

---

Additional Information

This refurbished ALCO e/m Bar Magnet Apparatus has been professionally inspected and tested before dispatch. CRT tube, bar magnets, connecting leads, accessories, manuals and documentation may vary depending on stock availability. Buyers should verify included accessories before purchase.

• https://www.nist.gov/
• https://physicsworld.com/
• https://www.iso.org/

Refurbished Condition

This is a Refurbished ALCO e/m Bar Magnet Apparatus (Thomson's Method). The instrument has been professionally inspected, cleaned and functionally tested to ensure reliable educational laboratory performance. CRT assemblies, bar magnets, connecting cables, accessories, manuals and documentation may vary depending on stock availability. Buyers should verify the included accessories and laboratory compatibility before purchase.