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Collpits oscillator with a SAW resonator

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testep11

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I need some help about this circuit. It suppose to be the transmitter circuit of a remote control extender. I put it together and it works.I didn't understand what Q14 with the SAW resonator does.On the kit manual says that is a Collpit oscillator but i didn't find anywhere this type of Collpits configuration. Q13 act as an amplifier?
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