UJT Relaxation Oscillator Manufacturer,Supplier and Exporter in India
Product Code : JA-PET-1414
The UJT relaxation oscillator trainer is a power electronics board for studying the uni-junction transistor (UJT 2N2646) and its use as a trigger circuit for SCRs. It includes an isolation transformer, a regulated 20 V DC supply, a zener regulator, a 1:1:1 pulse transformer and switched resistance and capacitance values, so students can vary the oscillator and watch the trigger pulses on an oscilloscope. It runs on 230 V AC mains (SKU JA-PET-1414).
Specifications
Built-in parts and ratings listed:
| Product | UJT Relaxation Oscillator |
| SKU | JA-PET-1414 |
| Device under test | UJT 2N2646 |
| Isolation transformer | 230 V AC at 100 mA |
| DC supply | 20 V DC at 100 mA, IC regulated, internally connected |
| Regulation | Bridge rectifier and zener regulator |
| Controls | Frequency potentiometer; two band switches for resistance and capacitance values |
| Pulse transformer | 1:1:1 |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and jewel light |
| Patch cords | 4 mm stackable, 0.5 m |
| Weight | 3 kg approx. |
| Dimensions | W 340 x H 110 x D 210 mm |
| Also required | 3 3/4 digit multimeter; 0-30 V, 1 A regulated supply; 20 MHz dual trace CRO (unearthed); 0-230 V, 2 A variac |
Experiments on the UJT trainer
The listed experiments are:
- Zener diode as a voltage regulator
- Static emitter characteristics of the UJT on an oscilloscope
- Effect of supply voltage on peak point voltage, valley point voltage and valley current
- UJT relaxation oscillator as an SCR trigger circuit
- Control of trigger pulses with a shunt transistor
- Effect of resistance and capacitance values on the trigger pulses
- Type 1, 2 and 3 oscillator configurations (low, moderate and high output impedance)
Scope of supply and ordering
The listing covers the trainer with its built-in parts, patch cords and operating instructions, supplied by JaincoLab; the multimeter, external supply, oscilloscope and variac are separate items. The number of units, the packing and the dispatch time are confirmed on the quotation.
Frequently asked questions
Which UJT is used on the trainer?
A 2N2646 uni-junction transistor.
Why does the trainer have an isolation transformer?
It protects external instruments from damage if they are not isolated.
What instruments are needed with it?
A 3 3/4 digit multimeter, a 0-30 V 1 A regulated supply, a 20 MHz dual trace oscilloscope and a 0-230 V, 2 A variac.
Related products
- Three Phase Half Controlled Thyristorized Bridge Converter
- SCR And AC Phase Control
- DV and DT Limitation Of SCRS
- Triac and AC Phase Control
Other products in this group are in the power electronics trainers range.
Request a quote
For a price on the UJT Relaxation Oscillator, share the quantity and destination via the contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
