flying high ...

James Husted jhusted at halcyon.com
Thu Oct 8 17:46:11 CEST 1998


The company I work for (Symetrix) used to make a unit we called the Phase
Filter that used 2 ssm2040's in an All Pass config. The thing that made it
sound great was the control voltage setup. The two filter chips were run
from the same cv but they were never calibrated to track together and the
result was a very deep and fluid sounding phaser. We originally designed it
with 3 ssm2040's but in that config the thing was WAY too intense (it bent
notes and stuff). Having multiple filter banks that don't perfectly track
together makes a huge difference in the sound of phasers.
-James

At 07:00 PM 10/7/98 +0200, Magnus Danielson wrote:
>>>>>> "HJ" == Haible Juergen <Juergen.Haible at nbgm.siemens.de> writes:
>
> HJ> Hi,
> HJ> I started soldering 240 diodes to a veroboard last night.
> HJ> Time for another EMS clone ... guess which one (;->).
>
>EMS Hi-Fly's phaser!
>
>So, you are using up that life-time supply of 1N4148's? ;-D
>
>Are you doing the full works with the mode-switch stuff and the
>modulator?
>
>For those not knowing this, the Hi-Fly phase-core and modulation
>cursuitry is something very interesting and fairly extravagant.
>The 240 diodes are used in stacks of 20 for each of the 6 AP filters
>in the two phaserbanks. You can have them run 180 degrees to each
>other and thus perform through-zero phasing!
>
>It is defenetly worth looking at for a cloning. Good luck Juergen!
>
>Cheers,
>Magnus
>
*******************************************************
* James Husted - The Ersatz Planet Graphics and Sound *
*               jhusted at halcyon.com                   *
*     http://www.halcyon.com/jhusted/welcome.htm      *
*******************************************************



More information about the Synth-diy mailing list