Foxx - Foot Phaser  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
Mayniac
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Post by Mayniac »

Does anyone have a schematic for this beast (or access to one)? I have been looking for it for the last 7-8 years, but was never able to find it.
This pedal was frequently used by Brian May in his early years.

The pedal is currently being reissued, but the price is a bit steep (>$300!).
Image

vanessa
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Post by vanessa »

I would love to have a copy of that schematic. I've looked too.

:cry:

Meanderthal
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Post by Meanderthal »

WOW! I didn't know these even existed! Sooo... Is it like the fuzz wah, with dual circuits, or does the foot control the sweep of the phase? Please don't tell me it just controls the speed of the lfo...

ech0es
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Post by ech0es »

Image

[/img]

ech0es
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Post by ech0es »


Mayniac
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Post by Mayniac »

ech0es wrote:Maybe a modified tycobrahe flange:

http://www.dirk-hendrik.com/tycobrahe_pedalflanger.pdf
No way... it's definitely a fet-based phaser, no BDD inside!

snail
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Post by snail »

The enclosure looks killer tho... 300 is pricey but it sure is stylish too!

The fuzz side would be the tone machine right?

snail

Meanderthal
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Post by Meanderthal »

Yeah, the fuzz in a fuzz wah is the tone machine. This is a different animal.

I googled it and read a sales blurb, and they say the pedal controls speed in 'auto mode', and phase in manual mode. That must be what the rotary switch selects...

What is not clear is what was meant by controlling "phase"- did they mean it literally, as in controls the sweep, or did they just mean depth? Controlling the sweep would be a whole lot more useful... and... fun.

Solidhex
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Post by Solidhex »

Yo

My friend has one of the new ones. He loves it. I haven't had a chance to play through it but from what he says the manual mode lets you control the sweep similar to the way an envelope filter can be set to manual control for a fixed filter. I would be pretty curious to see a schematic as well.

--Brad

ac30sim
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Post by ac30sim »

Mayniac wrote: No way... it's definitely a fet-based phaser, no BDD inside!
Hi !
I'd like to know what type of FET were used in the original Foxx Foot Phaser. Does anyone know ?

Thanks ! :D

RnFR
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Post by RnFR »

I think this would be a good project for the tracers fund. if we can find someone to do the reversing and there's enough interest of course.
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DiscoFreq
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Post by DiscoFreq »

I have an old one somewhere...
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borislavgajic
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Post by borislavgajic »

DiscoFreq wrote:I have an old one somewhere...
:horsey:
where? how? guts please? :thumbsup

Boris

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DiscoFreq
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Post by DiscoFreq »

I'll make some next time I see it (can take a while).
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CovingtonPedals
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Post by CovingtonPedals »

ac30sim wrote:
Mayniac wrote: No way... it's definitely a fet-based phaser, no BDD inside!
Hi !
I'd like to know what type of FET were used in the original Foxx Foot Phaser. Does anyone know ?

Thanks ! :D


The originals used a 2N4302 JFET, later and current models use the PN4302. I build a clone of this circuit that runs in autophase only...the way Brian May ran his...and fit it in a 1590 case. I call it the MAY-Z-PHAZE

RnFR
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Post by RnFR »

care to share?
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic

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borislavgajic
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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....
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Post by borislavgajic »

RnFR wrote:care to share?
or ....share to care...... :D

CovingtonPedals
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Post by CovingtonPedals »

The schematic...sure. I dont have a scanner but I can try to get a good pic of it.

Recently, I took an old REGAL marked volume pedal (Foxx made) and installed one of my PCB's into the shell...here are some pics. This one is going on my 70's style BM pedalboard.
Attachments
rp2.jpg
rp1.jpg

borislavgajic
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Posts: 1553
Joined: 27 Feb 2008, 15:23
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
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Post by borislavgajic »

it would be great if we could see schematic..............very nice PCB build!!!

cheers
Boris

CovingtonPedals
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Post by CovingtonPedals »

Schematic as promised
Attachments
fs11.jpg

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