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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 70,655 of 72,318   
   Ralph Phillips to jfeng@my-deja.com   
   Re: three terminal volt regulator   
   21 Jul 18 17:47:53   
   
   From: ralphp@philent.biz   
      
   On 7/13/2018 5:34 PM, jfeng@my-deja.com wrote:   
   > On Friday, July 13, 2018 at 6:55:20 AM UTC-7, George Herold wrote:   
   >> Huh, Thanks... I'll order some of those then.   
   >> (The Onsemi parts are going away.)   
   >>   
   >> George H.   
   > If your budget can stand it, you might want to consider a switching mode   
   regulator.  Some are three-terminal drop-in replacements for the TO-220   
   devices.   
   >   
   > If you are a hardware hacker (literally), you can cannibalize one from a USB   
   car charger.  Here in Silicon Valley, Fry's Electronics sometimes sells them   
   for under a dollar.  This may not work reliably if your unregulated supply is   
   over 18V, but should    
   work fine if it is 15V or less.   
   >   
      
   Thankyouthankyouthankyou!  I have a function generator that at 12V will   
   bake the 78L05 TO-92 cased regulator; the switchmode .5A unit should   
   work a treat in its place so I don't have to have a second PSU just for   
   it, when working on speedometers for my cars!   
      
   RwP   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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