From: curd@notformail.com   
      
   On Tue, 14 May 2019 08:20:22 -0700, John Larkin wrote:   
      
   > Electronics is frustrating if you put together things that you don't   
   > understand, and they don't work. Why not just buy stuff all done?   
   >   
   > If you do want to learn about electronics, start with very simple   
   > circuits that you invent yourself, and do the math, and make it work.   
   >   
   > Start with a battery and some resistors a DVM. Do the simple math all   
   > along the way.   
   >   
   > After that makes sense, add one big capacitor. Then an LED or two. Don't   
   > move on until you understand it.   
   >   
   > An introductory EE course at a community college would be hugely   
   > helpful.   
      
   The OP can be comforted by the fact that expecting a circuit to work   
   first time after building it is unduly optimistic. Even simple circuits   
   it's easy to overlook something, no matter how experienced you become. IME   
   (very considerable over 50+ years) the majority of circuits do NOT work   
   first time and so need time spend re-checking everything. You just get   
   quicker and quicker at the checking and testing procedures!   
      
      
      
      
      
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