XPost: sci.electronics.design, sci.electronics.repair   
   From: diverse@tcp.co.uk   
      
   On 16/05/2016 07:36, DaveC wrote:   
   > http://imgur.com/Trvs5mk   
   >   
   > This is a beeper piezo in a Fluke 117 DMM which quite beeping. Scoped the   
   > piezo’s pads and... nothing.   
   >   
   > An inverter (from the CD4069) is connected across the piezo. Guess I don’t   
   > understand anything about driving piezos.   
   >   
   > Is this a standard practice?   
   > Cheers.   
   >   
      
   My Fluke 77, will beep when the battery is low but not low enough to   
   trigger the LCD legend, presumably drift over time   
      
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