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2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself

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>> No.1113502 [View]
File: 758 KB, 801x576, transducer.png [View same] [iqdb] [saucenao] [google]
1113502

This is what chinese shops sell for $50-60.
A controller board and oscillating film jammed between steel/aluminum cylinders.

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