Produce 7 Hertz Frequency

[Rabid Wombat]

> On Thu, 25 Jul 1996, Jerome Tan wrote:
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> > Does anyone know how to produce a 7 hertz frequency?
> 
> No, but hum a few bars and we'll fake it.
> 

I am.

7 hertz is sub-audible. 

:)

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