Experiments Included:

  • Study of Amplitude Modulation using Ring Diode Modulator
  • Study of Amplitude Modulation using Balanced Modulator
  • Study of AM De-Modulation using Envelope Detector
  • Study of AM De-Modulation using Balanced De-Modulator

IT-4112 is the comprehensive training system designed to analyze the DSB techniques used for Amplitude Modulation and De-Modulation. The trainer consists of signal generator, carrier generator, Modulator and De-Modulator section. It provides the full understanding of conventional Amplitude Modulation circuits.


  • Power Supply Included
  • Required Circuits Tested
  • Each Section Clearly Marked for Input and Output
  • Each Section Works as an Independent Unit
  • Input Devices like microphone, Signal generator Included
  • Output Devices like Speaker Included

Technical Features:

  • Micro phone Input: Input through micro phone
  • Audio Generator: Frequency and Amplitude adjustable.


  1. Ring Modulator
  2. Balanced Modulator
    Local Oscillator: 455 Khz


  1. Envelope Detector
  2. Balanced De-Modulator
  • Audio Amplifier: Monolithic with adjustable gain
  • Speaker: 8 Ohm
  • Interconnections: 2mm gold plated pins

Accessories: Experiment Manual, 2mm patch cords and Micro phone