![TEL PLANAR DIODE 520](http://www.rutland.co.za/cdn/shop/products/064108_tel_planar_diode_520_1024x1024.jpeg?v=1440436514)
TEL PLANAR DIODE 520
Phenomena of thermionic effect in a vacuum, the Edison effect and space charge, for fixed temperature charge flow depends on electrode potential difference, 'saturation' current depends on filament temperature, evidence of unilateral flow of charge, determination of e/m by magnetron method, application of diode as rectifier.