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cold components used on a electrical supply board?

2007-08-01 00:19:28 · 1 answers · asked by Aji 1 in Consumer Electronics ➔ Other - Electronics

1 answers

a piezoelectric crystal with reverse voltage applied.

2007-08-01 04:02:31 · answer #1 · answered by Bill R 7 · 0⤊ 0⤋

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