home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

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

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 71,727 of 72,318   
   Pimpom to Steve Wolf   
   Re: Power in use indicator please ?   
   12 Jun 20 01:07:17   
   
   From: nobody@nowhere.com   
      
   On 6/12/2020 12:18 AM, Steve Wolf wrote:   
   > Ps. I should say. I tried your suggested circuit as mentioned but could not   
   get it to work. I cannot say what was wrong exactly. I dont know if I had bad   
   jumper wires etc. Thats when I said it was not working. Anyway I kept playing   
   with it and then it    
   worked. Everything you mentioned including your circuit worked fine.   
   > As they say in computers :User Error my fault.   
   > Thanks   
   >   
      
   I felt the need to provide evidence of its working because 1) you   
   said you could not get it to work and 2) I detected some   
   skepticism on the part of others.   
      
   Diodes used in that somewhat unusual configuration could lead to   
   errors in the wiring. Maybe that's why it didn't work for you at   
   first. Glad to know that it did work eventually.   
      
   As I said before, you can add more LEDs in parallel. Each LED   
   takes up only a tiny fraction of the load current and will not   
   divert a significant amount of current away from the main diodes.   
   This in turn will not significantly reduce the voltage drop   
   across the diodes which is what enables the LED(s) to light up.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca