Extending the Sound Box further

The Sound Box has had another update, and now includes an external speaker socket. this means that it can be plugged into an external amplifier/speaker or some other output device that can handle the analog signal. The image below shows the new jack socket with a device already connected via a jackplug:

Sound Box with new external plug socket

Sound Box with new external plug socket

In the next image a surface transducer (a surface speaker) is plugged into the Sound Box. The transducer itself is attached to a 1.2mm zinc plate with a strip of BlueTack. The transducer makes the zinc plate vibrate to produce sound.

Transducer attached to a zinc plate with bluetack

Transducer attached to a zinc plate with bluetack

The final image is a close-up of the transducer. You can buy these for around £5.00 each (or less) from many outlets on the web.

Transducer

Transducer

The next experiment will be to connect the Sound Box to an external amplifier, and from this to a much more powerful speaker. The speaker will be attached to a metal plate and we will look at how the sound waves propagate on the surface of the plate to produce patterns (visible using fine sand or powder).

Advertisements
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s