Experimental Training Board has been designed specifically for determination of electronic charge (e) by using rectifier equation in case of a point contact germanium rectifier. The board is absolutely self contained and requires no other apparatus.
Practical experience on this board carries great educative value for Science and Engineering Students.

Object:

• To determine the electronic charge (e) by using rectifier equation in case of a point contact germanium rectifier.
• To note, change of current I with change of low voltage V in forward bias case and to plot the variation in log I & V and investigate linear region of the graph.
• To determine the electronic charge (e) by using rectifier equation.

Features:

• The board consists of the following built-in parts:
• 500mV D.C. at 0.5mA, continuously variable Power Supply.
• F.E.T. Millivoltmeter, 65mm rectangular dial with switch selectable ranges of 100mV & 200mV.
• D.C. Microammeter, 65mm rectangular dial with switch selectable ranges of 25mA and 250mA.
• Two Germanium diodes.
• Mains ON/OFF switch, Fuse and Jewel light.
  • The unit is operative on 230V ±10% at 50Hz A.C. Mains.
  • Adequate no. of patch cords stackable from rear both ends 4mm spring loaded plug length ½ metre.
  • Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms.
  • Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.