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RF_oscillator_

2016-08-06 05:38  
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RF_oscillator_
RF_oscillator_
This circuit uses the LM3909 as a low-power RF oscillator (chapter 5). The tuned circuit is a standard AM-radio ferrite antenna coil (loopstick) with a tap 40% of the turns up from one end. The tuning capacitor is a standard 360-pF AM-radio tuning capacitor The high-frequency limit is about 800 kHz.