Radio and Telephone.(age 11\12)

When was the fenophone mechanical loudspeaker invented?………

Draw a diagram of the cosmos crystal set.

Give an example of a 3 valve receiver:………………………………….

Name what Arthur Scherbius invented:………………………………...

Look at the large, changing images on the screen. Name three differences between the equipment of Matthew and Alec Bell:

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Who made the first STD call and where did he\she make it from?………………………………………….. from …………………..

When did the B.B.C. make their first television appearance ?…………

Draw a diagram of an old fashioned telephone:

Fill in the gaps.

In ………. The SS `Luciana` was the first …………… liner to carry ………………… equipment.

What are underwater cables called and when did they make a big

impact?……………………………………….. year:………………

Draw a diagram of the London to Birmingham cable and say when it

was made……………………….