UJT Relaxation Oscillator

We have gained immense expertise in offering UJT Relaxation Oscillator to respectable clients. The offered range aids in studying the electrical characteristics of uni- junction transistor. Ideally utilized for relaxation oscillator, waveform & pulse generators and firing circuits of SCR's and TRIAC’s, the offered products are also applicable for making designing firing circuits and control circuits for thyristors.

Objects:

• Study of zener diode as voltage regulator
• Study of static emitter characteristics of UJT- uni-junction transistor on oscilloscope
• Study of effect of V on peak point and valley point voltage and valley point current
• Operation of UJT relaxation oscillator and its use as SCR trigger circuit
• Control of UJT trigger pulses with shunt transistor
• Study of variations in gate resistance & capacitance, resistance of source & drain and their effect on trigger pulse characteristics of UJT relaxation oscillator
• Various configurations of UJT relaxation oscillator type 1(low output impedance), type 2 (moderate output impedance) and type 3 (high output impedance)

In built parts:

• An isolation transformer 230 V A.C. At 100 mA. This protects external instruments from damage if they are not isolated
• 20V D.C. at 100mA, IC regulated power supply internally connected
• Bridge rectifier and zener regulator
• Potentiometer for frequency control
• Two band switches for selecting different value of resistance and capacitance
• Pulse transformer 1:1:1
• UJT 2N 2646 under experiment
• Adequate no. of other electronic components
• Mains ON/OFF switch, fuse and jewel light

Specifications:

• The unit is operative on 230 V ±10% at 50 Hz A.C. mains
• Adequate no. of patch cords stackable 4 mm spring loaded plug length ½ meter
• Good quality, reliable terminal/sockets are provided at appropriate places on panel for connections/observation of waveforms
• Strongly supported by detailed operating instructions, giving details of object theory, design procedures, report suggestions and book references
• Weight: 3 kg. (approx.)
• Dimension: W 340 x H 110 x D 210

Other apparatus required:

• Digital multimeter 3¾ digit - order code 16901
• 0-30 V, 1 amp IC regulated power supply
• Dual trace cathode ray oscilloscope 20 MHz (unearthed)
• Variac, 0-230 V A.C. @ 2 amp