Hello Gregg (and all others interested.)
In a nutshell the "Basic" phase shifter circuit can take an input
signal and phase shift it between 0 and 180 degrees. In order to get
more phase shift you have to chain several circuits in series. That
is...2 circuits in series will give 0 to 360 degrees three circuits
will give 0 to 540 degrees and so on.
Just to clarify....in series means the output of one phase shifter
is the input to the next an so on.
Now.... in the basic Serge PHA phaser the maximum phase shift is
1080 degrees which means a total of 6 stages (6 times 180 degrees) in
series.
In the Dual Phaser 2PHA one phaser has a maximum of 360 degrees (2
stages) and the other has 720 degrees (4 times 180 degrees).
LOW AND BEHOLD !!! both units use a total of 6 stages.
AS with most of Serge's modules, he likes to use the same circuits
over and again in different configurations to maximize his "returns".
For example...the Dual Transient Generator uses exactly the same
circuit board as the Dual Universal Slope Generator. I would hazzard
to guess that the Quadrature Oscillator is merely a Variable Q VCF
set to permanently self oscillate. Etc. Etc.
Hope this explanation helps out.
Truth is....Neither Phaser module is much to write home about. To get
it usable you have to use an external mixer in order to introduce
feedback giving that all important "Resonance" that "Thick" phasing
requires. The 2 stage (360 Degrees) output on the 2PHA is all but
unusable in making the traditional "Phase Shifter" sound.
The best use for the 2PHA is to run the same signal into both
inputs and run the two outputs in stereo. Then use different
modulation on both and you'll get a fairly descent "Stero Thickener"
That's all for now........Cheers....Dean
--- In SergeModular@yahoogroups.com, darkflame 23 <darkflame23@p...>
wrote:
the 2PHA actually has LESS outputs than the PHA (where is the 1080
degree out?) Sorry if this is a stupid question! Thanks in advance
for any info.
In a nutshell the "Basic" phase shifter circuit can take an input
signal and phase shift it between 0 and 180 degrees. In order to get
more phase shift you have to chain several circuits in series. That
is...2 circuits in series will give 0 to 360 degrees three circuits
will give 0 to 540 degrees and so on.
Just to clarify....in series means the output of one phase shifter
is the input to the next an so on.
Now.... in the basic Serge PHA phaser the maximum phase shift is
1080 degrees which means a total of 6 stages (6 times 180 degrees) in
series.
In the Dual Phaser 2PHA one phaser has a maximum of 360 degrees (2
stages) and the other has 720 degrees (4 times 180 degrees).
LOW AND BEHOLD !!! both units use a total of 6 stages.
AS with most of Serge's modules, he likes to use the same circuits
over and again in different configurations to maximize his "returns".
For example...the Dual Transient Generator uses exactly the same
circuit board as the Dual Universal Slope Generator. I would hazzard
to guess that the Quadrature Oscillator is merely a Variable Q VCF
set to permanently self oscillate. Etc. Etc.
Hope this explanation helps out.
Truth is....Neither Phaser module is much to write home about. To get
it usable you have to use an external mixer in order to introduce
feedback giving that all important "Resonance" that "Thick" phasing
requires. The 2 stage (360 Degrees) output on the 2PHA is all but
unusable in making the traditional "Phase Shifter" sound.
The best use for the 2PHA is to run the same signal into both
inputs and run the two outputs in stereo. Then use different
modulation on both and you'll get a fairly descent "Stero Thickener"
That's all for now........Cheers....Dean
--- In SergeModular@yahoogroups.com, darkflame 23 <darkflame23@p...>
wrote:
> Hi all,2PHA. Could someone explain the basic differences? It appears that
>
> I am a bit confused about the difference between the PHA and the
the 2PHA actually has LESS outputs than the PHA (where is the 1080
degree out?) Sorry if this is a stupid question! Thanks in advance
for any info.
>
> Gregg.
>
> http://www.hermetech.net/