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Electronics Notes & Radio-Electronics combine:   Electronics Notes now incorporates Radio-Electronics.com, the established website for reference website for electronics engineeers providing incisve tutorials, reference and information. The move strengthens Electronics Notes and provides a unique opportunity for advertisers to advertise on a premium website at minimal cost.
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Technology History

Spark Gap Transmitters

The spark gap transmitter was the first type of transmitter to be used. Although very inefficient and crude by today's standards, it was the first form of transmitter to enable radio to span the Atlantic Ocean.