This old radio uses a tetrode.

The use of this machine is simple.

It's my habit to listen to the news on the radio every morning.

This computer can be used by anyone.

He is interested in the history of the past.

This old building tells the history of our town.

This old house is the one where my grandparents lived.

This pipe is for carrying water.

There is an old radio cassette in my room.

My grandfather still uses an old transistor radio.