(LM386 OP- AMP + speaker and piezo)
(uploaded a new version of "File:Speaker 2198.png")
LM386 OP- AMP + speaker and piezo
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|current||14:38, 10 March 2016||2,448 × 3,264 (6.7 MB)||Nataliam|
|14:35, 10 March 2016||3,264 × 2,448 (2.05 MB)||Nataliam||LM386 OP- AMP + speaker and piezo|