Power Audio Amplifier upper level physics experiments

The Power / Audio Amplifier is designed for advanced physics laboratories to provide high-current signal amplification for precision experimental applications. It supports both AC and DC signal amplification and is ideal for experiments requiring large modulation currents, including Faraday rotation, Hall effect measurements, resistance measurements, acoustic experiments, and temperature control systems. The amplifier features a universal power supply and a regulated DC output, making it suitable for laboratory use worldwide. Manufactured by Atico Export India.

• Faraday rotation experiments
• Hall effect measurements
• Low-resistance measurements
• Four-terminal resistance measurements
• Lock-in amplifier experiments
• Acoustic and speaker-based experiments
• Temperature control systems
• Peltier cooler operation
• General signal amplification
• Advanced physics laboratory experiments

Instrument Specifications :

• Continuously adjustable input attenuation
• AC-coupled input
• DC-coupled input
• BNC input connectors
• Banana output terminals
• 4 V regulated DC output
• 100 mA auxiliary DC supply
• Universal power supply
• Input voltage: 100–230 VAC
• Operating frequency: 50–60 Hz
• Maximum output current: 1 A
• Peak-to-peak magnetic field: Approximately 22 mT (with compatible solenoid)
• Low output impedance

Experiments :

Magnetic Field Experiments

• Faraday rotation measurements
• Magnetic field modulation
• Verdet constant determination

Electrical Measurements

• Hall effect measurements
• Low-resistance measurements
• Four-terminal resistance measurements
• Precision voltage measurements

Signal Processing

• Lock-in amplifier applications
• High-current modulation experiments
• Signal amplification studies

Acoustic Experiments

• Audio signal amplification
• Speaker driving applications
• Acoustic response measurements

Temperature Control

• Peltier cooler operation
• Heating and cooling control experiments

Educational Objectives :

• Understand high-current signal amplification
• Study magnetic field modulation techniques
• Perform precision resistance measurements
• Investigate Hall effect principles
• Learn lock-in detection methods
• Understand Faraday rotation measurements
• Develop practical skills in signal conditioning
• Study audio amplification techniques
• Explore temperature control using Peltier devices
• Gain hands-on experience with advanced laboratory instrumentation

• Continuously adjustable input attenuator
• Separate AC-coupled and DC-coupled BNC inputs
• Banana terminal output connections
• Common input and output ground
• Regulated 4 V DC power output (100 mA)
• Universal AC power input (100–230 VAC, 50–60 Hz)
• High-current output up to 1 A
• Low output impedance
• Compatible with inductive loads
• Suitable for driving acoustic speakers
• Ideal for lock-in detection applications
• Reliable operation for precision laboratory measurements