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Tom, you can buy QST magazine over-the-counter in some stores. Certainly, you could at Amateur Electronic Supply in Milwaukee if that is anywhere near you, but also maybe at some electronic-parts dealers or larger book/magazine stores if you have any accessible to you.
The circuit is similar to what is in my Creative Electronics ESR meter from around 1980 that works very well.
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Chris
Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
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