gmcjetpilot
Newbie level 5
Help with Alternating 12 volt DC Headlight flasher "WIGWAG"
The off the shelf versions for emergency vehicles are expensive and heavy, often in heavy potting. I want solid state.
Req:
12-14 volt DC
two 60 watt (about 4.5 amp each) halogen lights....
Flash about 50-100 fpm (flash per minute).... adjustable is good.
I am thinking of a 555 circuit may be? What transistor for switching? NPN, PNP, FET, MOSFET..... SCR seems good but once on switching off is a problem.
The off the shelf versions for emergency vehicles are expensive and heavy, often in heavy potting. I want solid state.
Req:
12-14 volt DC
two 60 watt (about 4.5 amp each) halogen lights....
Flash about 50-100 fpm (flash per minute).... adjustable is good.
I am thinking of a 555 circuit may be? What transistor for switching? NPN, PNP, FET, MOSFET..... SCR seems good but once on switching off is a problem.
Last edited:
