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On Wed, 25 Feb 2004 19:47:49 GMT, "Robert C Monsen"
posted this: "Paul Burridge" wrote in message Interesting. This is the type I've decided to build as the basis for my next sweep generator attempt, since it's claimed the config is more amenable to being pulled than most others (although I won't be attempting to pull it anything like as much as my first abortive attempt using a Cmos-based inverter). Do you find it's a reliable and stable design, Jim? I assume if it wasn't you wouldn't still be using it! Why not use a VCO built from an LC oscillator? Its really easy to build one with a single transistor that sweeps your band. Major problem with that idea is the fact that Paul has no way to calibrate or adjust the VCO. That's why he wants to start with a crystal oscillator. If it works, he won't have to calibrate it. Jim |
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