All right, that's where I was heading with it, thanks for expanding the explanationaudiohub wrote:That's it exactly. The noise level doesn't change, but if the signal level is larger going in, then that fixed amount of noise the phaser chain generates becomes a less significant part of the whole signal.
Musitronics - Mutron Phasor II
The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
- chicago_mike
- Tube Twister
How does this ohaser sound compared to others...
notably the maestro.
Inquiring minds want to know.
notably the maestro.
Inquiring minds want to know.
Skyline FX 2013
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Mine isn't too noisy, but I place mine in the effects loop AFTER EQ/distortion or overdrive, compression, EQ #2. Sometimes I'll put it infront of my chorus, sometimes not. But DEFINITELY BEFORE my echoplex or lexicon reverb (whichever delay I'm in the mood for which is last in the chain).audiohub wrote:These pedals often get a bad rap for being noisy, when in fact they are often just driven with too low of a signal.
If you use this as a stompbox with a guitar level signal, and then into a higher gain setup, you'll be amplifying the phaser chain
noise along with your guitar signal. These units are really made to accept a line level signal, and will work much better in an
effects loop or preamp/poweramp insert type of situation if that's possible with your setup. They can accept several volts of input
signal without distortion, and the noise level will drop accordingly.
i just got myself a Mutron Phasor II and i am so underwhelmed that i'm starting to think that maybe Santa Claus isn't really real...there is so little effect. it's almost as though the low half of the sweep is not there at all. my morley pfv is way stronger than this mutron. i only just got it last night so i haven't had too much time to look inside yet. i was wondering if anybody any voltages o this thing over the years?
I've repaired two of these that had LFO IC's with cold solder joints. In both cases, I had to remove the IC, clean the legs and solder pads and resolder the ic's.grantb wrote:I've got one I need to repair. The sweep is intermittent. When it does sweep, it makes giant spacey swooshes. This one needs a recap for sure... hopefully that's all.
In my Phasor II, the IC's are TL082's and the resistor listed as 330 coming off of the 1k trim pot is 220. Other than that, everything else is the same. Mine is working great and is not noisy at all. I haven't had the courage yet to desolder the ldr can to reverse engineer it.
Ah, thank you very much! Your post made me go back and check for bad joints again. Mine was on the same chip. This board had a lot of polluted looking joints before I fixed them, but I missed that one. Maybe the shield plate exerting mechanical stress on the pins of that chip is what makes it fail first. It's a very well designed unit IMO, too bad about the soldering.n8b5150 wrote:I've repaired two of these that had LFO IC's with cold solder joints. In both cases, I had to remove the IC, clean the legs and solder pads and resolder the ic's.grantb wrote:I've got one I need to repair. The sweep is intermittent. When it does sweep, it makes giant spacey swooshes. This one needs a recap for sure... hopefully that's all.
...
- mictester
- Old Solderhand
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2SC1852 --> BC337delayed wrote:Does anyone know what can replace the transistors in the phasor II?
2sc1852 = ?
2sc828 = ?
2sa666 = ?
2SC828 --> BC183L
2SA666 --> BC327
These are not 100% equivalents, but they'll work perfectly.
"Why is it humming?" "Because it doesn't know the words!"
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2SC1852=2N4401delayed wrote:Does anyone know what can replace the transistors in the phasor II?
2sc1852 = ?
2sc828 = ?
2sa666 = ?
I am looking to replace them but Mouser does not show stock on these.
Thanks,
I'm 100% sure because I've seen original schems from Musitronics
Greetings
- borislavgajic
- Opamp Operator
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Dipthonizer,seekwah,Talkingpedal,morleywha
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EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser.... - Location: Sombor , Serbia
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this is led/ldr arangement of BiPhaser......but it is similar to Phaser II.........
cheers
Boris
cheers
Boris
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Hi there
I've finished my Phasor II clone-prototype successfully
After a few of corrections to my layout (and an error with the schem posted here some time ago) I'm playing that amazing phaser...
My english is so bad to explain how good it sounds, I'm so f*ucking happy with my clone. It were a lot of months studing and reading about Mutron technology (and almost everthing was in english )
At this moment it's w/out a box (just PCB and external controls for testing). I'll post my finished work later...
Well, I leave a pair of guts (sorry, they're from my cell phone) and a lo-quality sample (from my cell phone too)
Cheers from Chile
Diego
I've finished my Phasor II clone-prototype successfully
After a few of corrections to my layout (and an error with the schem posted here some time ago) I'm playing that amazing phaser...
My english is so bad to explain how good it sounds, I'm so f*ucking happy with my clone. It were a lot of months studing and reading about Mutron technology (and almost everthing was in english )
At this moment it's w/out a box (just PCB and external controls for testing). I'll post my finished work later...
Well, I leave a pair of guts (sorry, they're from my cell phone) and a lo-quality sample (from my cell phone too)
Cheers from Chile
Diego
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- PhasorII-lowqualitydemo.rar
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- sinner
- Old Solderhand
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Thank you, but the archives are corrupted
- borislavgajic
- Opamp Operator
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- Posts: 1542
- Joined: 27 Feb 2008, 14:23
- Completed builds: ...script phase90,ETI phaser,Ross phaser,mutronC200,vox wah,WH10,FW-3,mutronIII,DrQuack,Penfoldautowah,Tubezipper,
Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser.... - Location: Sombor , Serbia
- Has thanked: 131 times
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Great ....thanks .....
can you tell us more about error on schem?
what do you mean?
cheers
Boris
can you tell us more about error on schem?
what do you mean?
cheers
Boris
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Hi
hummm, I'll post guts and sound samples when I finish my work... I'm not shure about post my complete work (PCB/Layout) I'm not interested in people selling clones w/ MY work What about that in this forum? At least in my country some people used to do this... Probably I'll post my schematic with corrections...
About error on schematic...
I don't remember very weell because I haven't my docs with me right now... but it was on LFO circuit... An IC between Rate and Depth controls was wrong connected, and wrong noted (pin 5 as - input)... But fortunatelly it's easilly to fix
Cheers
sinner: what do you mean with "corrupted"?? Don't you can download anything?
hummm, I'll post guts and sound samples when I finish my work... I'm not shure about post my complete work (PCB/Layout) I'm not interested in people selling clones w/ MY work What about that in this forum? At least in my country some people used to do this... Probably I'll post my schematic with corrections...
About error on schematic...
I don't remember very weell because I haven't my docs with me right now... but it was on LFO circuit... An IC between Rate and Depth controls was wrong connected, and wrong noted (pin 5 as - input)... But fortunatelly it's easilly to fix
Cheers
sinner: what do you mean with "corrupted"?? Don't you can download anything?
From the trace pictures it looks like the schematic error is just like arayita said. Looking at the schematic the 0,47uf connecting to pin 7 and 5 on IC6B, should be connected between pin 7 and 6. Pin 5 goes to ground just like pin 2 on IC6A.
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Right skumberg! This was the problem. When I connected the IC with wrong schem it sounded with an old radio noise I was very disappointed
I'll upload corrected schematics today
cheers
I'll upload corrected schematics today
cheers