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| Symmetry harmonic oscillator generator Posted: 09 May 2013 10:36 PM PDT This circuit is simple harmonic oscillator generator that easy because use three transistors as main components that In this modern era, look old-fashioned, but if you have a device in hand, should be created be used. Highlights of this circuit, not in use of the third harmonic of the crystal or is a symmetric. But the tuning because the frequency generator circuits, a commonly used tuning circuit is not a fundamental frequency generator circuits only. If you want to use a harmonic tuning circuit, to selectively took the desired harmonic out. This circuit is an stable multi vibrator Which use how to connected the crystal that Strange are connects between the emitter pin of both transistors and connected in series with a little trimmer (C5 = 40 picofarads(pF)) That trimmer is used to adjust the fundamental frequency. To become the third harmonic frequency. This circuit is designed for use with [...]  |
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