Producing Alternating current of high Frequency.

amk_dbz

As the title suggests, how are very high frequency AC produced?
A AC generator must have a limit to the rotation velocity of the coil, mustn't it?
Any help would be appreciated.
Thanks.

amk_dbz	Producing Alternating current of high Frequency. Tweet As the title suggests, how are very high frequency AC produced? A AC generator must have a limit to the rotation velocity of the coil, mustn't it? Any help would be appreciated. Thanks.