John Guy
Beeper Schematic April 25 2023.pdfUpdated schematic with corrected diff amp connectionAdobe Portable Document Format - 59.84 kB - 04/25/2023 at 11:01 |
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Beeper Schematic 2-19-2020.pdfOld schematic with very different topology. includes LiPo chargerAdobe Portable Document Format - 53.96 kB - 04/17/2023 at 20:50 |
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Beeper Box: Analog V2F
A very useful test fixture to convert the voltage or impedance seen on its input to a variable frequency audible tone