• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Sticky topic suggestion

In learning this hobby I find that measurement techniques, making test jigs, set ups for measuring, etc. is something I continually need. I recently asked how to physically measure reflected impedance, got great answers, one could also ask how do I set up a jig to measure DC saturation point? Or what rig can I make to measure power rating of an OPT? Or how do I measure an unmarked opt to get back all its original specs? Or how to make a rig to measure micro phonics, or plot a few plate traces manually not having a tracer. How to set up a THD test. How do I do an FFT test? How do I determine the noise floor number of the amp I just built?

I see a handful of sticky topics for oscillation, heaters, newby, tv tubes, spice, construction, etc. how about a sticky topic dedicated to physical measurement techniques? Call it "Physical Measurement Techniques". how to set up various test jigs, how to use your various test equipment pieces, etc. I'm sure there are many here who have "tricks" for getting the physical characteristics measured. This sticky would be the opposite of Spice, old school, how do I best measure this or that and the associated math, also schematics on how to set up a measurement technique. So many tube books I read are formulaic, a lot of math and theory, followed a few projects, followed by the token chapter on how to make a chassis (sheesh). The whole area of measuring real stuff with real test equipment is often overlooked. And there is just so much talent here.
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