inverse / reverse switch!

M

midhul

New Member

• Apr 25, 2009

• #1

Hello,

I need some help in finding a circuit for an inverse / reverse switch.
i.e.
there is a circuit with two wires and a bulb. when the wires are joint the ciruit is broken and the bulb stops glowing, instead of the vise-versa.

Thank you!
I'm not an electronic expert. I just like thinking, and making my own projects.

 

crutschow

Well-Known Member

Most Helpful Member

• Apr 25, 2009

• #2

You need either a transistor or a TRIAC depending upon whether the voltage is DC or AC. But both of those require a third wire.

 

K

KMoffett

Well-Known Member

• Apr 25, 2009

• #3

Sounds like a battery, resistor, and bulb in series. Two more wires coming from the bulb terminals. Touch these wires together, it shorts out the bulb, and the bulb goes out.

Ken

 

M

midhul

New Member

• Apr 25, 2009

• #4

How do you do it with a transistor

 

K

KMoffett

Well-Known Member

• Apr 26, 2009

• #5

Is this supposed to be a black-box illusion?

Ken

 

Attachments

• Inverse-reverse Bulb.gif

  4.6 KB · Views: 155

Last edited: Apr 26, 2009

A

Andrew Leigh

Member

• Apr 27, 2009

• #6

Whats the application?