Electro Harmonix - Y-Triggered Filter
- Scruffie
- Opamp Operator
Here's a Re-Draw of the incredibly difficult to read EHX Y-Triggered Filter Schematic, The Original of which can be found here - http://sites.google.com/site/electrocon ... actory.gif
It's a simple envelope filter using EHX's favourite OTA the CA3094, hopefully i'll get round to converting this to use a more available OTA at some point in the near future though.
Diodes are all 1N4148/1N914 the NPN transistor is a BC239 in Marks Unit and the PNPs are the complimentary of that.
(Thanks to Mark Hammer & Stephen Giles for Helping me Complete this One)
It's a simple envelope filter using EHX's favourite OTA the CA3094, hopefully i'll get round to converting this to use a more available OTA at some point in the near future though.
Diodes are all 1N4148/1N914 the NPN transistor is a BC239 in Marks Unit and the PNPs are the complimentary of that.
(Thanks to Mark Hammer & Stephen Giles for Helping me Complete this One)
- borislavgajic
- Opamp Operator
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thanks...but some guts?
Boris
Boris
- lolbou
- Old Solderhand
You porn addict...borislavgajic wrote:thanks...but some guts?
But indeed, did you managed to get some pics for reference Scruffie?
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.
- Uh, no, I'm a mocker.
- culturejam
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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.... - Location: Sombor , Serbia
- Has thanked: 131 times
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Yes ...I am addicted......are you notlolbou wrote:You porn addict...borislavgajic wrote:thanks...but some guts?
But indeed, did you managed to get some pics for reference Scruffie?
there should be separate thread about addicted people herer on forum
Boris
- analogguru
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A "dealer" should never be addicted. Enjoy the "drugs".borislavgajic wrote:Yes ...I am addicted......are you notlolbou wrote:You porn addict...borislavgajic wrote:thanks...but some guts?
But indeed, did you managed to get some pics for reference Scruffie?
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- 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
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Thanks......
and AG..you are right sir.......
Boris
- Scruffie
- Opamp Operator
So... Mark just confirmed to me that there is no 4th Transistor in his unit and it doesn't appear to be on Analoggurus unit either... is that Factory Schematic lying a little bit I wonder?
I don't see a 10uF Tant either so do you think that last transistor (Q1) was dropped on production models? I don't really know its purpose and what is R21 about 'Out of Ckt'?
I don't see a 10uF Tant either so do you think that last transistor (Q1) was dropped on production models? I don't really know its purpose and what is R21 about 'Out of Ckt'?
- 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
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Sorry for necro-posting, but i recently bought a faulty YTF and i'm looking to repair it. Not being very experienced with electronics, I'll check som ethigns with you as I work. Is the slide switch supposed to connect to the negative of the audio input or the negative of the power input? And how important is the .1 uF cap at the same position?
- Masuto
- Breadboard Brother
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