Phasers - if you don't have enough already

Sean Costello costello at seanet.com
Sun Aug 30 08:16:27 CEST 1998


Don Tillman wrote:

>    I am even thinking about an all CMOS phaser solution. Don Tillman
>    showed us how to use a 4069 as a hex VC resistor, and built a
>    phaser from that and some opamps.
> 
> Yep.  Though someone else pointed out that an Electro Harmonix product
> might have done this independently.

I just saw this - someone posted a Badstone schematic, which seems to
use a 4049 for its FETs.  Still a very cool idea, that I want to
experiment with.

BTW, how much of a difference do the VCR's make in a phaser design? Will
a design that uses FETs sound noticably different than a design that
uses photoresistors?  How about OTA-based phasers?  Can anyone describe
the sonic differences between these phasers, in a way that makes sense?

Thanks,

Sean Costello (owner of a Maestro Phaser, a Mutron Phasor II, a
weak-sonding Ibanez Soundtank Phaser, and the Boss SE-50 which does a
nice job of phasing in the digital domain)




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