multisim simulation check

[Uscat]

Hy ,

First of all i'm new in multisim,i have this circuit wich should be a metal detector.

I hope its done correctly.How can i now if the board its done correct?Can i simulate it,and how?

I tried,but i think something its not done wright.

A little help

Sorry for my bad english.

Thanks

[Uscat]

electrical drawing

http://www.electroniq.net/555-timer-circuits/metal-detector-using-555-timer-circuit.html

[Miguel_V]

Hello,

How to test this? You wouldn't be able to simulate it going near metal, maybe try to replicate the effect that would set off the alarm in a metal detector (some kind of signal, pulse, circuit, etc). As for your VCC, normally you don't use alternating current to run timers or components. I would use a DC power source between 5 to 12 V.

Regards,