Bode Barber Pole Phaser

[danial stocks]

anyone got any ideas on the frequency shifter in there? do you reckon it's a 
1496 or something similar [yuk] or maybe a waveform compression device [mmm 
yumm this would preserve harmonic ratios, chord structures etc].. If you did 
a waveform compression shift in this system, the result could be a 
mindblowing effect!
cheers,
Dan
>
>At 08:46 AM 27/11/00 +0000, you wrote:
>>There were a series of advertisments in Keyboard magazine back in the
>>seventies which included a picture of what appeared to be a 19" rack. (Too
>>small to make any detail out).
>>
>> >From memory, I think there were seperate adverts for frequency shifters 
>>and
>>vocoders. Which might imply the unit is not a version of the Moog 
>>frequency
>>shifter?
>
>  I too have seen the advertisements. I enlarged a scan of the image
>  and with details from the patent have been able to figure out most
>  of the panel and circuit. There are a few controls I don't understand.
>  The Bode's 'Barberpole Phaser' or infinite phaser uses a frequency
>  shifter and a standard phaser in a feedback combination. The phaser
>  frequency nulls are shifted up and down through the frequency shifter.
>  So, its method is different from a collection of phasers and VCAs
>  as John Simonton described in the Polyphony 'Shepard tone' article.
>  If _you_ know any more, let's hear.
>
>>Consequently, I am puzzled about the functionality of the barber pole
>>phaser. By name a 'shepard tone' equivalent of phasing might be expected.
>>However, there are stories of frequency shifting too.
>>
>>Can anyone resolve this?
>>
>>-----Original Message-----
>>From: Donald Johnson [mailto:donaldj at infomatch.com]
>>Sent: Monday, November 27, 2000 1:16 AM
>>To: Turner Wallace
>>Subject: Re: Bode Barber Pole Phaser
>>
>>
>>At 10:26 AM 24/11/00 +0000, you wrote:
>> >Are there any schematics for the Bode barber pole phaser available?
>>
>>   How did you hear about this effect? Have _you_ seen or heard one?
>>   I've been trying to find information on it, so anything you know
>>   would be appreciated.
>>   thanks,
>>   don.
>
>  don.
>
>( (        don johnson        ) )
>  \ \                         / /
>) ) ) donaldj at infomatch.com ( ( (
>  / /                        \ \
>( (    dla kwe Ensign Core   ) )
>

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