Diode : one way street

Diode : one way street

Diode is a semiconductor device having two electrodes. It is mainly made from Silicon or Germanium. Diodes have polarity. A diode has two terminals, the positive terminal is called anode and the negative terminal is called cathode. These terminals can be identified as...
Sign language of circuit diagrams

Sign language of circuit diagrams

We will try some exciting circuits in the coming blogs. The crucial skill of interpreting circuit diagrams cannot be ignored. Similar to preparing a food recipe, a crucial skill is to know the ingredients, proportion thereof and when to add in the making process as...
Melodious Musical Bell

Melodious Musical Bell

Using soldering skills, here we are going to construct a simple musical bell using very basic components. Material needed: card board/vinyl board or any other hard board Speaker 8 ohm, IC UM 66, Transistor BC 548, Cell holder, 2 pencil cell Take a board. Paint or...
Single Tune Musical Bell

Single Tune Musical Bell

In this article, we shall learn to make a musical bell. For this, we shall only use three basic electronic components. These components are (i) IC UM 66; (ii) Transistor BC 548; and (iii) Speaker. The energy source for the bell is two pencil cells fixed in a cell...