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31st January 2012, 11:15 PM
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#12 | |
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diyAudio Member
Join Date: Jul 2008
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Quote:
update: in reading furthur it turns out that there is no simple formula. you need to do vertical and horizontal plots. I was looking for a simple formula to check the accuracy of my tube tester. It would be nice to be able to use a bias probe to get current and then measure plate voltage...put the numbers in the formula and compare to the meter reading. I do have a calibrated calibration tube, but it only works in the 1000 to 4000 range. I want to see if I have nay transformer sage when testing high power octals. |
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