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Making quick flash relay

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=5144
Printed Date: August 10, 2025 at 2:34 PM


Topic: Making quick flash relay

Posted By: MestizoRacer310
Subject: Making quick flash relay
Date Posted: November 05, 2002 at 3:00 AM

Rather than spending 60+ dollars of my hard earned money..is there a way I can make one?  I'm guessing just buy a hazard flash relay, open it up and switch out the capacitor or resistor in order to make the blinkers think a bulb's missing to make it blink faster or to make it blink slower.  The relay I'm trying to avoid buying is called the Run-About or Quik Flash [Auto Indulgence sells the Quik Flash...Lomita, CA company]....



Replies:

Posted By: sufferrar
Date Posted: November 05, 2002 at 8:21 AM

This should work ....... experiment with different values .

larger caps and resistors  for longer flash  time .




Posted By: MestizoRacer310
Date Posted: November 05, 2002 at 1:46 PM
But I'd like to make it variable...is there such a thing as a variable capacitor??



Posted By: sufferrar
Date Posted: November 06, 2002 at 4:22 AM
There are but for very small values . you can use a variable resistor call potentiometer. this should work.




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