RELAXATION OSCILLATOR USING UJT | UJT Based Sawtooth Wave Generator Trainer Apparatus

Description

The Relaxation Oscillator Using UJT Apparatus is a precision electronics laboratory trainer designed to study the working principle and characteristics of a Unijunction Transistor (UJT) used as a relaxation oscillator. This experiment demonstrates the generation of sawtooth (ramp) waveforms and explains timing control using RC networks, making it an essential experiment in analog electronics and pulse circuits.
Ideal for electronics laboratories, engineering colleges, polytechnic institutes, and technical training centers.
✅ Key Features
⚡ UJT Relaxation Oscillator Operation
Demonstrates oscillation using UJT triggering mechanism
Study of charging and discharging of capacitor through UJT
Generation of sawtooth / ramp waveform at emitter terminal
🔌 Built-In Regulated Power Supply
Stable DC power supply for UJT operation
Smooth and reliable voltage control
Ensures consistent and repeatable experimental results
📈 Frequency Control Using RC Network
Variable resistance and capacitor network
Study of frequency variation with R and C values
Verification of theoretical oscillation frequency formula
📊 Measurement & Observation
Test points provided for waveform observation
Compatible with CRO / DSO for signal analysis
Enables study of peak voltage and firing characteristics
🧱 Educational Trainer Design
Printed circuit diagram on front panel
Clearly labeled components, terminals, and controls
Compact, rugged, and student-friendly enclosure
🛡 Safety & Reliability
Low-voltage, student-safe operation
Overload and short-circuit protection
High-quality components ensure long service life
📘 Typical Applications
Study of UJT characteristics in oscillator mode
Pulse and timing circuit experiments
Relaxation oscillator theory verification
Electronics and physics laboratory training
Engineering and diploma practical courses
💡 Why Choose This Apparatus?
Clear demonstration of UJT based oscillation
Easy understanding of timing and pulse generation
Essential trainer for analog and pulse electronics
Reliable, durable, and ideal for academic laboratories