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 71,063 of 72,318   
   Sjouke Burry to Bob Engelhardt   
   Re: Remove some leds   
   28 Apr 19 21:13:39   
   
   From: burrynulnulfour@ppllaanneett.nnll   
      
   On 28.04.19 21:07, Bob Engelhardt wrote:   
   > On 4/28/2019 1:08 PM, Andy wrote:   
   >> I noticed that 1 resistor is for ac line. Does that reduce 120 v to around   
   3 v? Do i modify the other resistor? Any idea what the box like item is?   
   >>   
   >   
   > Both resistors are in the AC line - one on each side.  Don't know they'd   
   > use 2, unless it is a feeble attempt to isolate the LED's from the line.   
   >    Yes, their purpose is to drop the voltage.   
   >   
   > The box is in parallel to one of the resistors & I have no idea what it is.   
   >   
   a capacitor maybe? as an element to drop voltage.   
   The resistor in parallel is to discharge the cap.   
      
   --- 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