Astable Multivibrator

A multivibrator which generates square waves of its own (i.e without any external trigger pulse) is known as astable multivibrator. It is also called free ramming multivibrator.

Intel 8086/8088 Microprocessor

The 8086 microprocessor is available with clock frequency of 5, 8 and 10 megahertz. It is an Intel microprocessor and also a 16 bit microprocessor.

555 Timer IC as a-stable Multivibrator

A 555 timer IC is used a a-stable multivibrator as shown in the given figure (A). The threshold input is now connected to the trigger input (Pin 2), the resister R1, R2 and capacitor C1 for timing network which set the frequency of the oscillator.

SCR Gate Parameter

There are six important gate parameters, classified in terms of current and voltage. The following four are maximum gate parameters. When any of these are exceeded the SCR may be destroyed.