Huge...

A really big vacuum tube used in a Navy ship's radio.My dad got it from his brother, a radio man in the Navy for many years.

Flickr page for this photo.

Visit the Eye for Science Flickr group.

Get the "Eye for Science" widget here and install it on your own blog. Spread the scienticity!

Like this image? Want it for your smartphone wallpaper?
Use this QR Code to load it on your smartphone and enjoy!