Elektor "Voice Shifter", Re: EN frequency shifter

[Donald Johnson]

Haible Juergen wrote:
>  > And another pro: It is not E.N., so no copyright issue.
>  > And dimensioning is straight forward, if you have a simulator.
>  > The E.N. network is very difficult to dimension without the
>  > given tables.
> 
> Just for the record, I have the (corrected) EN table values worked into my
> drawing at http://www.synthfool.com/diy/hjfs6_df.gif and
> http://www.synthfool.com/diy/hjfselec.html
> 
> (I included a reference to the EN Preferred Circuits Collection,
> and I didn't receive any complaints so far.)
> 
> JH.

 The April 2000 issue of Elektor Electronics (UK edition)
 has a 3 page article on a "voice shifter" (pages 48-50).
 It looks like a SSB and filter method. Says it has only
 a 6 Khz bandwisth and a +/- 500 Hz shift. But the components
 used are a pair of NE612 double balanced modulators and a
 pair of ceramic filter/resonators. Maybe its cheap enough?
 don.

( (        don johnson        ) )
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