[sdiy] Frequency multipliers

[Chris Muir]

On Jun 4, 2010, at 1:13 PM, Joel B wrote:

> Are there some relatively simple analog circuits that can take an  
> input sine frequency of x and output a multiple of x?


Simple relative to what? There are a variety of frequency shifters out  
there, but they tend to be of moderate complexity.


Chris Muir                    | "There are many futures and only one  
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