The Magnus phase shifter

[Magnus Danielson]

From: "Bjorn Julin" <bnillson at hotmail.com>
Subject: RE: The Magnus phase shifter
Date: Thu, 21 Sep 2000 14:25:55 GMT

Hi!

> >This circuit is almost the same as the Chroma sawtooth mix.
> 
> >Quick description: The Chroma has a comparator, positive input
> >grounded, negative input has an equal mix of sawtooth and the PWM
> >control voltage, and the result is a resistor mix of the comparator
> >output, the PWM control voltage and the sawtooth.
> 
> The Chroma uses offset voltages on the + input and
> to the summing mixer.
> 
> >But the Chroma mixes in twice as much sawtooth because the goal isn't
> >a phase shifter but a mix of the original sawtooth and the
> >phase-shifted sawtooth for a thicker sound.
> 
> Actually when i run Magnus shifter and the Chroma the end
> result is the same. Functionally I dont se any difference
> between them. The design difference is that Magnus is a
> +- 5 volt and the Chroma is a 0 to +5 volt.
> And Magnus use a different aproach to DC rejection then
> the Chroma does , Both cirquits are capable to do PM.

Humm... which method does the Chroma use?

BTW, is there Chroma schematic around somewhere that I could look on?

> The ViBrAtO effect!!!

Oooohhhhh ;)

Cheers,
Magnus