The wire brushes
On the back of each drum, 104 brushes of fine spring wire press on a fixed plate of contacts. As the drum turns, each brush slides onto the next contact.
↑ Turn the drum one step and watch the lit brush.
Preparing the workshop…
Preparing the workshop…
On the back of each drum, 104 brushes of fine spring wire press on a fixed plate of contacts. As the drum turns, each brush slides onto the next contact.
↑ Turn the drum one step and watch the lit brush.