Archive for date: January 19, 2009

A Universal VXO by George Dobbs G3RJV

January 19, 2009 | Amateur Radio | By: Mark VandeWettering

Well, you can’t do better than an article by the legendary George Dobbs, G3RJV. The circuit that he has closely resembles the oscillator that I just built, with a few distinctions. A Universal VXO by George Dobbs G3RJV The general topology is the same, but the resistive voltage divider that feeds the base of the […]

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To Oscillate, or not to Oscillate…

January 19, 2009 | Amateur Radio | By: Mark VandeWettering

Or more precisely, is it oscillating, or is it not oscillating? This is my first attempt at actually trying to build a circuit using Manhattan style construction (so please, be kind!) I fetched the oscillator circuit from EMRFD, and tacked it together with some parts from my junkbox. The only substitution that I made was […]

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