SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T18:11:21-06:00SparkFun Electronicsvincent_k on According to Pete: All About Crystalsvincent_kurn:uuid:ed51a5ad-6e1d-cf51-bc21-fe7abfeaae0f2018-02-03T15:02:44-07:00<p>Another great ATP!</p>
Customer #161221 on According to Pete: All About CrystalsCustomer #161221urn:uuid:43489336-5eb6-0fee-c5b7-d154e9f6a8922018-02-02T06:12:16-07:00<p>What is the use of the power supply capacitor and is it necessary to make the oscillator work?<p>Normally transistors are used as either switches or amplifiers. When entering the (high) frequency range you can use it as a oscillator. The Electrical reactance of the power supply capacitor will lower when the frequency goes up, it will get close to zero. If you now take a look at the circuitry, the oscillator makes more sense with a feedback (the crystal) from collector to base to oscillate. The higher you make the power supply capacitor the easier it will oscillate. Hopes this helps.</p></p>
Pete-O on According to Pete: All About CrystalsPete-Ourn:uuid:07173fea-bffe-a152-2a7e-9d0153c5e49e2018-01-30T13:19:07-07:00<p>Thank you so much! Talking to you that day really did make my week.</p>
Customer #897632 on According to Pete: All About CrystalsCustomer #897632urn:uuid:549399c3-b4e3-396a-1404-f86920a07aa42018-01-30T13:12:55-07:00<p>You have excellent timing Pete, thanks! I'm working on a project that will screen AT cut crystals for durability, this episode clarified and answered many questions.<p>P.S. Enjoyed meeting you and our chat in the Sparkfun lobby the other day.</p></p>
Pete-O on According to Pete: All About CrystalsPete-Ourn:uuid:e060a2b5-b243-92f2-38eb-f8dfc13b3d3f2018-01-30T12:34:52-07:00<p>Thanks for chiming in! Your level of experience is obvious (you clearly know what you're talking about) and well represented.</p>