Is Teletronics 12-212 2.4 GHz 500 mW Indoor Amplifier a class A or AB?

[Danstone]

Is Teletronics 12-212 2.4 GHz 500 mW Indoor Amplifier a class A or AB? What is the power requirement for it?

[Brian]

The 12-212 2.4 GHz Indoor Amplifier is a class AB amplifier.

A class A amplifier has a single output transistor which conducts for a full 360⁰ of the cycle of the input waveform.

Class B and AB both have two output transistors. For class B, the output transistors only conduct for one-half, that is, 180⁰ of the input waveform.

Class AB amplifier's output transistors conduct somewhere between 180⁰ and 360⁰ of the input waveform. The class AB amplifier operates as a combination of classes A and B.

That is, for small power outputs the AB amplifier operates as a class A amplifier but changes to a class B amplifier for larger current outputs. Class AB is more linear than Class B but less efficient, but more efficient than class A

The power requirement for a 12-212 Indoor amplifier is 9V, 1.5A. Another class AB amplifier is the Teletronics 900MHz 12-105 BDA with power requirements of 12V, 4A.

Other classes of amplifiers include Class C, D, E, F, G, and H. For other amplifiers and repeaters, check out this page.

For more on amplifiers and repeaters, feel free to contact our wireless specialists for assistance with your project.