My Tektronix DMM doesn't flutter, but it will show DC and AC components independently, which is useful when I suspect ripple; and it also (simultaneously!) shows the frequency, which is wonderful when I'm trying to figure out whether my generator is running right. A couple months ago I thought it wasn't, and the Tek showed 49 hertz instead of its normal 61 or so. Replaced the generator's air filter and all was well. But I still love those Simpsons and Tripletts.
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-- Carl
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