Phase Shift Audio Oscillator with power supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12136
Indian Lab Suppliers supplies the Phase Shift Audio Oscillator with power supply (Product ID: 12136) as part of its electronics engineering lab equipment range. It is a training board for studying transistor R-C phase shift audio oscillators in a single-transistor and an improved two-transistor form.
Quick Answer
The board holds two transistors, three sets of three capacitor values chosen by a switch to change the frequency, and a potentiometer for setting the gain, all powered by an IC-regulated 9 V DC, 50 mA supply. Students first build the single-transistor oscillator and then the improved two-transistor circuit, and compare the output. Three R-C sections give the 180° phase shift needed for feedback; for the classic ladder the frequency is 1/(2π√6·RC) and the amplifier gain must be at least 29.
Key Specifications
| Parameter | Detail |
|---|---|
| Circuit | R-C phase shift audio oscillator, one- and two-transistor versions |
| Frequency selection | Three sets of three capacitor values, switch selected |
| Gain control | Potentiometer |
| Built-in supply | 9 V DC, 50 mA, IC regulated |
| Mains input | 230 V ±10%, 50 Hz AC, with mains switch, fuse and pilot lamp |
| Connections | 4 mm terminals; stackable spring-loaded patch cords, 0.5 m |
| Weight | 3 kg (approx.) |
| Dimensions | W 340 x H 110 x D 210 mm |
| Also required | 20 MHz CRO |
Where This Is Used
Taught alongside the Wien bridge audio oscillator with power supply (Product ID: 12135); the Amplifier and Oscillator Work Board (Product ID: 12137) combines this oscillator with a CE amplifier on one board. Change patch cords only with the 230 V mains switched off. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How is the frequency varied?
By switching between three sets of three capacitor values.
Why are there two circuits?
To compare a single-transistor oscillator with an improved two-transistor version.
What instrument is needed?
A 20 MHz oscilloscope to view the waveform.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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