Amplifier for Phone- Shalev Harari

A passive amplifier is an amplifier that is not amplified but needs external aids that will strengthen the sound.

This is my project that my teacher Tomer gave me.

• Scissors
• Cardboard box
• Scotch tape
• Pen / marker
• Carton of milk / juice
• A piece of cardboard
• And of course a phone

Put the juice carton on the cardboard box and mark with a marker / pen around the juice carton.

Do the same thing with your phone.

Stab with the tip of the scissors the bottom of the carton until a hole is formed then cut and remove the base of the juice carton

Stab with the tip of the scissors the bottom of the carton until a hole is formed then cut and remove the base of the juice carton

Stab with the tip of the scissors the top a little bit under the cork of the carton until a hole is formed then cut and remove the entire top of the juice carton

Mark with a marker / pen the area where you want to cut. It is better to diagonally because that way the sound will come out at the highest volume

Cut according to the marking you made

Stick the piece of cardboard with scotch tape on the higher part of the cut cardboard so that it is facing out

Put the cut cardboard inside the hole and that's all.

This is how it should look.