transformer makes noise from 10kv to 20kv
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Dr. Dark Current
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Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
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If your circuit has any kind of feedback, it might be oscillating at audible frequency. Also, a "fixed" signal generating circuit can become unstable by itself, by some interference etc.
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