light tester circuit

schand10

New Member
hi attached is a circuit my friend is currently using .....can some one explain how it works i.e how the relay CB part works plz
can we use transistors instead of CB's and relays in this circuit for automotive purposes...if yes how as this is to test short circuits....will the transistors be able to withstand the current surge?
thank you
 

Attachments

  • LTC.JPG
    125 KB · Views: 211
Cookies are required to use this site. You must accept them to continue using the site. Learn more…