Product Overview
This set includes:
- e/m Apparatus
- e/m Tube
- Power Supply for e/m Apparatus
Discover our highly regarded e/m Apparatus, designed for durability with a robust black acrylic resin body. Ideal for student experimentation, it allows a clear demonstration of the effects of electric and magnetic fields on an electron beam. This compact unit delivers an engaging and visually impressive learning experience, featuring a large, circular orbital path for the electrons, and integrated Helmholtz coils for precise control.
The e/m Tube is equipped with a built-in engraved glass rod and scale along the central axis, reducing parallax errors when measuring the electron orbit’s diameter. The experiment can be observed through either the front-view hole or the rear sliding panel.
Key Features:
- Vacuum Tube: 130mm diameter, filled with helium gas, and an integrated phosphor scale for clear observation
- Helmholtz Coil: 300mm diameter, 1mm wire with 130 turns, two coils mounted in parallel with variable resistors for current adjustments
- Anode: 200–500V
- Heater: 6.3V/1A
- Helmholtz Coil: 12V DC/2A
- Constructed from durable black acrylic resin
- Sliding back cover for easy access
- Tube Life: 100+ hour range (depending on operating conditions)
Dimensions & Weight:
- Dimensions: 37cm x 25.5cm x 39cm (L x W x H)
- Weight: 7 kg
Made in Japan
e/m Power Supply
This versatile power supply offers multiple output options to suit various experimental needs. It provides three independent DC outputs (0–20V, 0–80V, 0–500V) along with a selectable AC output (1.1V to 6.6V), allowing simultaneous use of different voltages. It includes features such as overload protection, glass fuses at the input, and a spare fuse in the main input socket.
Specifications:
- Approved under CSA (Canadian Standards Association) electrical standards
- Output Ranges/Current:
• 0–20V DC / 5A
• 0–500V DC / 10mA
• 0–80V DC / 10mA
• 1.1 to 6.6V AC / 2A - Load: 0-100% with 100mV variations
- Line regulation: 105-130V AC with 200mV variations
- Protection: Earth-grounded, passes high voltage, burn, and leakage tests
- Ripple and noise: 40mV rms
- Power requirements: 110/120V AC, 60Hz and 220/240V AC, 50/60 Hz using voltage selector switch
- Dimensions: 26cm x 24cm x 14cm
Made in India
Replacement Tube
- Dimensions: 5" diameter, 12" total length
- Filled with helium gas for optimal performance
- Integrated phosphor scale for accurate measurements
- Heater: 6.3V, 1A
- Maximum Ratings:
- Plate Voltage: 500V
- Plate Current: 10mA
- Tube Life: Over 100 hours, depending on usage conditions
Made in Japan
