phozer layout by markm - no ldr?

Started by niggez, January 23, 2008, 06:20:33 PM

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niggez

Hi. I was just browsing markm's gallery for layouts, when i found the phozer.
Compared to phasers, this is a very low budget build, am i correct? I was puzzled when i saw the layout and components list after hearing the sample on runoffgroove, because so far all phasers i had seen were either quite complex, or if not, subtle like the phase-45 (which im building right now). And the ldr is not cheap to buy for me.
Is the phozer layout in mark'ms gallery the actual phozer from runoffgroove?? Because that would be a greatsounding pedal for little cash in my opinion, which would suit me well right now...
please enlighten me!



I just noticed, this is the "ORIGINAL phozer". There are only sound samples of the "phozer" on runoffgroove. So whats the deal here?? Is this a similar sounding pedal?

Dragonfly

The original version used the LFO from the EA tremolo.

Check your PM's :)

niggez

how about the sound of this one? Like mentioned, there arent any samples of this on runoffgrove.
Can i expect it to sound close to the "new" phozer version?


And while were at phaser type pedals, i've been searching for ways to increase the phase effect of the phase-45 so i could get around without building a new pedal. Are there any?

johngreene

It's surprising that the 'Phozer' at Runoff Groove works very well. Usually connecting 2 LEDs in parallel like that doesn't work very well unless you put some resistance in series with each LED to keep one from taking all the current from the other due to a slightly lower Vf.  :icon_question: A better solution is if you have enough voltage to run them in series, then each LED gets the same amount of current.

--john
I started out with nothing... I still have most of it.

niggez

#4
So assuming it works as in their sample, am i just overlooking something or is there no expensive part such as an ldr involved?
And im still not sure about this...they mention in the description of the new phozer that the original version encountered some problems. Namely, the phase effect seems to not work in slower modes.

johngreene

Quote from: niggez on January 23, 2008, 06:37:09 PM
So assuming it works as in their sample, am i just overlooking something or is there no expensive part such as an ldr involved?
And im still not sure about this...they mention in the description of the new phozer that the original version encountered some problems...
The 'original' phozer uses a FET as a variable resistor to sweep a notch filter. It can sound much like a phaser but will not have as sharp of a notch so it has it's limitations. The text at Runoff Groove states the issue with the original has more to do with the LFO not sweeping well at higher rates. So they replaced it with a single opamp version.
I started out with nothing... I still have most of it.

niggez

what do you think can i expect compared to a phase-45?

niggez

Im thinking about ditching the phase-45 and salvaging the components to build the version2 phozer, since the audio sample sounds a lot stronger than the phase-45 effect. I just dont want to build both since the optocoupler costs around 5 euros.

snoof

the original phozer sounds like a wah pedal.  the new version sounds like a phaser.  if you want a deeper p45, build a p90.