The Edison effect (thermionic effect) represented by emission currents as a function of the heating power of the hot cathode can be determined using this Planar Diode. Recording the characteristics of diodes and demonstrating their application as rectifiers is also possible. This diode can also be used to determine the specific charge e/m by means of the magnetron method, using Helmholtz coils (WLS-1802-63). The Tube Holder (WLS-1802-62) and 500 VDC Power Supply (WLS-1799-15) are required, and available separately. Size: 12 x 12 x 25cm; 1.5 lbs. Specifications: Cathode heating voltage: Uh = 7.5 V, Ih = approx. 3 A Anode voltage: Ua = 300 V Anode current: typically Ia = 6.0 mA at Uh = 7.5 V, Ua= 300 V
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