What is the optimal biasing network and transistor for a Clapp oscillator?

  • Thread starter Thread starter Fischer777
  • Start date Start date
  • Tags Tags
    Oscillator
Click For Summary
SUMMARY

The discussion focuses on the Clapp oscillator, specifically addressing the need for a direct-current biasing network and the suitability of different transistors, such as the 2N2222, for its implementation. Participants highlight the lack of detailed diagrams and resources for constructing the oscillator, with one user providing a link to a BJT-based Clapp oscillator. The conversation emphasizes the importance of component values and resonance frequency in the design process.

PREREQUISITES
  • Understanding of oscillator circuits, specifically the Clapp oscillator design.
  • Familiarity with transistor types, including field-effect transistors (FETs) and bipolar junction transistors (BJTs).
  • Knowledge of biasing networks in electronic circuits.
  • Basic principles of resonance frequency calculation in oscillators.
NEXT STEPS
  • Research the design and implementation of direct-current biasing networks for oscillators.
  • Learn about the characteristics and applications of the 2N2222 transistor in oscillator circuits.
  • Explore detailed diagrams and component values for Clapp oscillators from reputable electronics resources.
  • Investigate the differences between FETs and BJTs in oscillator applications.
USEFUL FOR

Electronics enthusiasts, circuit designers, and engineers looking to build or optimize Clapp oscillators and understand their biasing requirements.

Fischer777
Messages
89
Reaction score
1
My last attempt at building a simple oscillator did not go so well. After doing research on harmonic electronic oscillators, I finally came across one that seemed relatively simple (not a whole lot of parts) and that had an easily computed resonance frequency, the Clapp oscillator. I have encountered two problems. Fist, all diagrams I've found of Clapp oscillators don't have much more detail than the following I found on Wikipedia: https://en.wikipedia.org/wiki/Clapp_oscillator which says that it has no direct-current biasing network shown. What should this added network look like? My other problem (or rather question) has to do with the transistor used. It appears to be some sort of field-effect transistor. Can another kind of transistor be used, like a 2N2222?

Thanks.
 
Engineering news on Phys.org
I googled Clapp Oscillator and the first thing I saw was an image of a transistor based Clapp with details of component values for any chosen frequency and the power supply. What more could you want?
 
Can you provide a link to this image; I have done multiple searches on multiple search engines and I didn't see anything that seemed to fit that description.
 
Fischer777 said:
My last attempt at building a simple oscillator did not go so well.
What frequency are you interested in?

Here's a Clapp BJT: http://technosains.com/ClappOscillator.htm

Apparently the Clapp also has a facebook page. Facebook is not currently working with my browser, so I can't view it. (I'd insert a glum Smiley here, but Smileys aren't working with my browser, either.) I'll try to guess one: :frown:

Here's the unconfirmed facebook link: http://www.facebook.com/pages/Clapp-oscillator/133121960056596
 

Similar threads

Purely passive RC Phase Shift Oscillator?
  • · Replies 27 ·
Replies
27
Views
3K
NPN transistor model for use with differential equations-LC oscillator
  • · Replies 4 ·
Replies
4
Views
5K
Designin (very simple) oscillator circuit
  • · Replies 8 ·
Replies
8
Views
6K
Harmonic Oscillator Design - controls approach
  • · Replies 1 ·
Replies
1
Views
2K
Class A Amplifier Sinusoidal Input/Output Relation
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Piezoelectricity and the Lorentz Harmonic Oscillator?
  • · Replies 14 ·
Replies
14
Views
3K
Problems snubbing HF noise on flyback transistor
  • · Replies 21 ·
Replies
21
Views
4K
Wien Bridge Oscillator: The Amazing Design Behind Car Technology
  • · Replies 2 ·
Replies
2
Views
4K
Calculating Resonant Tank Values for a Clapp Oscillator
  • · Replies 5 ·
Replies
5
Views
8K
Graduate Equipartition theorem and Coupled harmonic oscillator system
  • · Replies 3 ·
Replies
3
Views
2K