TEL 2524 Perrin Tube
- evidence of the particular nature of cathode rays
- establishment of negative sign of charge
- introduction of the “electron” as an atomic particle
- electron deflection sensitivity studies
- the concept of a “time-base”
- operation of a cathode ray oscilloscope
- simple Lissajous’ figures
The diode gun, a tungsten wire “hairpin” filament and a cylindrical collimating anode, projects a narrow beam of cathode rays into the evacuated experimental zone. This beam traverses the sphere to impinge on the luminescent screen in a spot about 4 mm in diameter. The narrow beam may be deflected in a vertical plane to enter the Faraday cage by using Helmholtz Coils,
TEL 2502. A further and horizontal deflection can be obtained using Secondary Coil,
TEL 2507 thereby constructing a simple cathode ray oscilloscope. All connections are made on the Universal Stand.
Power supply
Anode Voltage, 1500-5000 V DC
Maximum filament voltage, 7.5V.
Anode current at 4000V, 1.8mA.
Beam current at 4000V, 4µA
Plates supply at 350VDC
Recommended Accessories
TEL U33010 Power Supply
TEL 2502 Helmholtz Coils
TEL 2507 Secondary Coil
TEL 2810 Sweepgen
TEL U33000 Power Supply
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TEL 2524 PERRIN TUBE
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