XPost: sci.electronics.design   
   From: erichpwagner@hotmail.com   
      
   On 08/11/2020 9:08 pm, Don wrote:   
   > This project shows how to build a 1.5 VDC pseudocell to take the place   
   > of an AA sized battery. The mechanical aspect of this project offers the   
   > greatest challenge. The electronic portion utilizes an easy to use LM317   
   > adjustable voltage regulator to convert a 5 VDC source to 1.5 VDC.   
   >   
   > (excerpt)   
   >   
   > https://crcomp.net/pseudocell/index.php   
   >   
   > (Thank you In Advance to readers who alert me to typos and whatnot.)   
   >   
   > Danke,   
   >   
      
   Your circuit design description states that R3 provides the minimum 10mA   
   load current. Yet the value of R3 is 15k which only draws 0.1mA which   
   when added to the R1/R2 divider current of 1.13mA means the minimum load   
   on the LM317 is only 1.2mA far short of the stated 10mA   
      
   You don't even need R3 - just change R1 to 120R and R2 to 24R.   
      
   piglet   
      
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