R.F. (L-C) Oscillators (Hartley, Colpitts, Clapp) with power supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12138
Indian Lab Suppliers supplies the R.F. (L-C) Oscillators (Hartley, Colpitts, Clapp) with power supply (Product ID: 12138) as part of its electronics engineering lab equipment range. It is a training board for building three transistor L-C radio-frequency oscillators: Hartley, Colpitts and Clapp.
Quick Answer
A PNP transistor, a variable gang condenser and the tank components are mounted on the board with an IC-regulated −9 V DC, 50 mA supply. The Hartley circuit takes feedback from a tapped inductor, the Colpitts from a capacitive divider, and the Clapp adds a series capacitor to the Colpitts tank for better frequency stability. Frequency follows f = 1/(2π√LC); a 2 MHz frequency counter and an oscilloscope are needed to measure it.
Key Specifications
| Parameter | Detail |
|---|---|
| Oscillators | Hartley, Colpitts, Clapp (L-C) |
| Active device | PNP transistor |
| Tuning | Variable gang condenser |
| 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 | 2 MHz frequency counter, CRO |
Where This Is Used
Used in communication and analog electronics labs after the R-C oscillators such as the Wien bridge audio oscillator with power supply (Product ID: 12135); the Study of Crystal Oscillator 1MHz (V.V.) (Product ID: 12188) shows how a quartz crystal stabilises frequency. Switch off the mains before changing connections. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Why Buy from Indian Lab Suppliers
Indian Lab Suppliers is an India-based laboratory equipment manufacturer and exporter supplying this LC RF oscillator trainer alongside its wider electronics lab equipment range, with documentation such as a Certificate of Origin available on request for institutional and export orders.
Frequently Asked Questions
How do the three circuits differ?
Hartley uses a tapped inductor, Colpitts a split capacitor, and Clapp adds a series capacitor to the Colpitts tank.
How is the frequency varied?
With the variable gang condenser.
What instruments are needed?
A 2 MHz frequency counter and an oscilloscope.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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