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Sunday, 2 February 2014

Emerson Custom Guitars Paramount Overdrive

Well I must admit I wasn't expecting it to be this, a few people may find this amusing though.
Info about the original:

The Paramount Overdrive is a Medium Gain (Second Stage Overdrive) that stacks very well with almost any pedal. It can be ran at 9-18v (18v for more headroom). The Paramount is an original Emerson circuit that is powerful has plenty of usable gain on tap to fit most any situation. The Paramount's character is refreshingly unique yet sits in the mix very well and has a familiar sound. This pedal is very dynamic and responds well to pick attack and the subtle nuances of the player.






and the schematic:




at

100 comments:

  1. StoneD2 February 2014 at 19:45

    I once tried the E-M Drive, as I said before I've personally classified this circuit in the WOT section (where WOT stands for Waste Of Time).

    ReplyDelete
  2. Zach2 February 2014 at 19:51

    StoneD to each their own. The E-M is actually fairly tweakable despite its low parts count.

    I made one for shits-and-giggles for a 1590a build, played with the caps and transistor and it's actually quite nice now, IMO better then the original.

    ReplyDelete
    Replies
    1. Geezer3 February 2014 at 13:56

      Johns....what tweaks and changes did you make?

      G

      Delete
  3. marcuspl2 February 2014 at 20:03

    Interesting. Might be worth a try - i actually love the em-drive, you just have to make sure you're using it for the right thing. It's a great stage 1 boost. It will crank, but it makes a fantastic foundation for the next overdrive in the chain. I would be curious to see how this works with the Em.

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  4. Digadadave2 February 2014 at 20:06

    So this look like a the em-drive with another transistor and a tonestack. Am I wrong?

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    1. IvIark2 February 2014 at 20:14

      Correct! Except the base bias resistor goes to the collector instead of supply. Wasn't expecting that :)

      Delete
    2. chumbox 2 February 2014 at 23:32

      So its a Darlington powered electra with tone stack? Actually sounds pretty decent in vids. Worth a build for the time it'll take. :)

      Delete
  5. teh_n1gz2 February 2014 at 21:02

    May give this one a try, the em drive I built sounded a bit like a fart box :)

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    1. Unknown21 December 2017 at 13:42

      change the 4,7K resistor to 2,2K on EM DRIVE and its gonna work

      Delete
  6. samuka3 February 2014 at 03:24

    Can i usa another Ic ? something like 2n3904 or another ?

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    1. chumbox 3 February 2014 at 04:40

      You can use any transistor in theory but it uses a Darlington which is like two regular transistors eg 2n3904 wired in a Darlington formation but in one transistor. You'll find a gain drop with a 2n3904 but I imagine it will work fine. You could build it with a socket using the 2n3904 while you wait for the right transistor to arrive. Good substitutes would also be MPSA12, MPSA14,ECG46, ECG172A, 2SC982, 2SC1472K, 2N5525, 2N5306 according to online sources.

      Delete
    2. samuka3 February 2014 at 04:46

      wow, i just found a mpsa13 and bild one, it's amazing, good tones, nice overdrive , and almost for free.

      Delete
    3. chumbox 3 February 2014 at 04:47

      Good to hear samuka! Sounds like it's verified. :)

      Delete
    4. IvIark3 February 2014 at 11:22

      Yes thanks samuka, a nice quick verification :o)

      Delete
    5. IvM1 January 2017 at 23:33

      What if I use 2 2N3904 in darlington formation?

      Delete
  7. Lee Oswald3 February 2014 at 18:14

    Emerson is fast becoming the new Lovepedal.

    ReplyDelete
  8. bart3 February 2014 at 20:21

    Can you guys post a link to the schematic for this one? I'd love to breadboard it and play with different values/trannies etc.. Thanks in advance. Bart

    ReplyDelete
    Replies
    1. IvIark3 February 2014 at 21:09

      I've added it to the main post

      Delete
    2. mirosol3 February 2014 at 23:21

      I'll beat everyone to the biggest question.. What software you use for drawing schematics?
      :P
      +m

      Delete
    3. IvIark3 February 2014 at 23:33

      sPlan version 7 mate. It's really easy to use for a schematic amateur like me! :)

      Delete
  9. Unknown4 February 2014 at 02:18

    Verified as well. Used a B1M for volume (only had two B250k). As small as it is, you can also use sockets for all seven components ( or just the ones you want to try other values) and skip the breadboard. Lots of volume, but I am getting some ground noise as the volume is increased, probably the big loopy wires and no case. More like a boost with a little OD bite.

    ReplyDelete
  10. Dave4 February 2014 at 09:15

    Worth mentioning that if you replace the 2.2M resistor with a diode (1n914 works well), you essentially have a bazz fuzz with added controls. Just a thought....
    Cheers
    Dave

    ReplyDelete
  11. Unknown4 February 2014 at 16:56

    Tried the diode (1N914 and 1N34A), both worked, but you lose the tone control, or it simply does change the signal as modified by the diode. Sound is more fuzzy, almost compressed. FWIW.

    ReplyDelete
  12. Unknown4 February 2014 at 22:59

    Sorry, meant to type, "does NOT" change the signal. Put the resistor back in, tone control returns.

    ReplyDelete
  13. perfector5 February 2014 at 14:19

    Can this or the em-drive be used for bass in someway? Has anyone tried?

    ReplyDelete
  14. Eric Evans6 February 2014 at 14:32

    Looks like I may try to build a dual drive emerson custom box soon...any pros or cons on boxing both this and the em-drive up together?

    Also, will the dual off board post let me have 2 independent drives? (I assume it will..just wondering) Any thoughts on how to put a switch in to change the order of the drives?

    ReplyDelete
    Replies
    1. Stephen P6 February 2014 at 19:15

      I can't really see any problems with that except that if you decided you only want one drive on your board you'd have to build another one or unbox it.
      Here's a link to an effect order switcher. It's made to be an external box but the principles should be the same.
      http://www.beavisaudio.com/projects/Looper-Switcher/index.htm
      If you're referring to the dual effect example in the offboard wiring section, then yes that will give you two independent effects.

      Delete
    2. chumbox 6 February 2014 at 22:53

      Hey Eric, great idea!

      Curtis Kent has a great demo vid of a Paramount and an Em-Drive together if that helps.
      http://www.youtube.com/watch?v=pHGaUNBK4ik

      Delete
    3. Eric Evans10 February 2014 at 21:30

      That's the video that got me thinking about this dual pedal chumbox! It will definitely be my next project with a toggle switch for order switching.

      Delete
    4. chumbox 10 February 2014 at 22:54

      haha look forward to hearing the outcome. It's a neat idea Eric.

      Delete
  15. Ben10 February 2014 at 17:01

    I'm a newbie to the pedal world. I tried drawing a schematic using the vero board layout. It came out close, but I guess I don't fully understand the parallel wiring of the diode, 100n cap and the 47u cap...

    Also, where does the diode come into play on the vero layout. Is it just not necessary in the vero build or is it one of those "understood" things if I'm going to build this. Just put a big order into Tayda (well, big just means lots of stuff, but not a lot of money. Enough to build this twice over and a lovepedal that I thought I might like. If all goes well, some of my factory pedals might be coming off my board and going onto craigslist :).

    ReplyDelete
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    1. IvIark10 February 2014 at 18:14

      The schematic is a true representation of the complete pedal circuit. The diode and caps that you're talking about all go between the 9V supply and ground. The diode is a parallel reverse polarity protection diode which I always omit because I find it ridiculous to include them without a fuse inline with the supply. Under reverse polarity at best the diode with burn out, at worst it will explode and take part of the board with it. So I made a decision a while ago with my layouts to always omit them if a parallel diode is used, and will only include reverse polarity protection if the original used a diode in series with the supply which won't cause any damage at all under reverse polarity, it just doesn't conduct.

      The 100n cap between supply and ground is a secondary filter cap which people include because lower value caps are better at filtering higher frequencies. I've never heard any difference whatsoever by adding this second cap, and so I tend to omit that too. You could actually add it to this layout if you wanted without having to add any rows or columns by putting a 100n cap from the hole to the left hand side of the emitter to the bottom row.

      The 47u cap is the main filter cap which I will always include if one was used in the original effect.

      Delete
    2. chumbox 10 February 2014 at 22:58

      Welcome to the land of no return (in a good way) Ben!

      Delete
  16. Ben11 February 2014 at 17:54

    Sorry for the double comment if this comes thru twice, my iPad was acting fishy. I am waiting for my parts and studying this and other circuits in the meantime. From what I've learned breadboarding an LPB1 and rangemaster type circuit, I am assuming that the 2n2 and 220n caps are input caps that are being blended with by the tone pot. If I swap the 2n2 with say a 1nf cap and the 220n with say a 470n cap, am I essentially widening the available frequencies being boosted with the tone control?

    In a book I've had for some time by Craig Anderton, he has a small chart that puts a 220n cap as boosting around 90Hz so anything much larger I would assume would be overkill. His smallest cap for the booster would be 5n and he puts that at affecting 4kHz. I assume based on the math in the book, 2n2 would be dealing with 8kHz and 1n would be messing in the 16kHz range.

    This is more of a "do I understand how this works correctly" question than a practical "I'm gonna build it this way" question. Although, I guess that is what a breadboard is for...

    Thanks for the warm welcome, chumbox.

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    Replies
    1. IvIark11 February 2014 at 18:19

      Yes you're right about how the input caps are working in conjunction with the Tone pot, and swapping to a 1n and 470n would indeed widen the frequency response of the Tone pot.

      The input caps create a filter along with the input resistance of the transistor so the cutoff frequency you get from each cap depends on that.

      Delete
  17. Vaas11 February 2014 at 18:37

    Built it and loving it! It has a nice flat response so it doesn't color my sound. I didn't have a 2M resistor so i tried 1.8 and 2.2. The 2.2 sounds a bit more grainy which i like.

    ReplyDelete
  18. toddvirgil11 February 2014 at 22:37

    Mark, where did you get the reference for the schematic? I'd love to see some gut shots but I can't find any...

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    Replies
    1. IvIark12 February 2014 at 00:10

      It was degooped by someone else and the connection points drawn down, and I made the schematic from the drawing. I'll ask if I can post gut shots

      Delete
    2. toddvirgil12 February 2014 at 01:27

      Thanks Mark!

      Delete
  19. Unknown6 March 2014 at 16:45

    What would be the best way to maximize gain with this build?

    ReplyDelete
  20. Ben17 March 2014 at 16:33

    So, this isn't necessarily a question about this pedal, but it's a recent layout and it's near the top of my list of projects to help continue getting my feet wet (I'm currently about to house the Lovepedal Delux 60 boost. My preliminary prototype sounded sweet pushing my Rivera Jake Studio clean sound into overdrive). Anyway, my question pertains to ease of wiring into the enclosure. Can I put the supply voltage into any of the holes in the strip it's assigned to (given there aren't any breaks along the strip) and get the same result? Same for ground/input/output etc? In a tight enclosure, it might help a newbie like me make cleaner guts and fewer inches of wire to jam into an enclosure...

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    1. Stephen P18 March 2014 at 00:03

      Since the 47uF capacitor and the 4k7ohm resistor are in parallel (according to the diagram) it shouldn't make a difference. So I believe you should be able to put the 9V supply wire anywhere on that strip. The same should work for ground. I'm not so sure if input and output lines work the same though. I'm under the impression that the order of the input and output caps matters but I could be totally wrong about that, I can't remember what the equations for that looked like from my circuits classes. Somebody please correct me if I'm wrong about any of this.

      Delete
    2. chumbox 18 March 2014 at 02:26

      Hey Ben and Stephen

      You can place the 9V, ground, input and output anywhere on the same strips in the Deluxe 60 vero because there are no cuts along any of those strips. Make sure that you connect the input and output wires to the correct end of the cap i.e. connect the wire to exactly the same strip.

      In saying that I don't see why you would want to connect it anywhere but on either edge of the vero. Generally the easiest place to connect wire is right on the edge of the vero out of the way of all the components and you can tuck the wire straight under the board with no issues. I'm assuming this is what is happening. I personally find designs that place the wires mid way down a strip look messy and poorly thought out if this was the plan.

      For a newbie put the Deluxe 60 in a normal 1590B enclsoure and you will have absolutely no trouble with making a clean layout while learning the ins and out of wiring it all correctly. Happy wiring! :)

      Delete
    3. chumbox 18 March 2014 at 02:28

      Oh and on the Deluxe 60 the 47k resistor does very little so I actually took it off and replaced it with a protection diode for the mosfet tranistor. Just a thought.

      Delete
    4. Ben18 March 2014 at 16:36

      I was really just wanting to go the other edge on the supply and ground. I've already got a 1590A and I'm gonna be close, but it's looking good. The way I'm laying the board in, the edge in the diagram with the in/out/supply/ground is facing the bottom of the pedal (the switch end) and the opposite edge is facing where I've mounted the power jack. I just wanted to use super short leads from the power jack to the supply and ground strips instead of going under. The output goes to lug 3 on the pot so that might have to be turned under the board. I'm going to tape up the solder side so that it doesn't short and it's all barely gonna fit for this newbie, but it should work. My next few builds will probably go in a 125B or 1590B enclosures with the ultimate plan being this boost and a good distortion pedal replacing my GT-500 so I can sell it for some other gear! Got a 7 month old and a 3 year old occupying my time right now so this building pedals hobby is slow going, but sticking with it and super excited to experiment and hone in on a sound that is my own. This site is invaluable!

      Delete
    5. chumbox 18 March 2014 at 23:31

      Sounds like you have a lot going Ben but you certainly have your head around the wiring. Keep up the great work. Yeah this site is amazing to say the least. :)

      Delete
  21. Digadadave20 March 2014 at 11:42

    Could somebody explain to me the difference between having the bias resistor going to the collector instead of the base? Difference meaning, how the transistor will sound/react when biased this way. Thanks

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  22. farmereffects22 March 2014 at 20:34

    Has anybody else had problems with this build?

    I been working on mine and it will not work for nothing... No sound is coming through it at all... I followed the layout guide.

    I used Polyester film capacitor and electrolytic for the 47uf cap. I used metal film resistors & darlington MPSA13 transistor.

    I have checked my solders and the board over with a magnifying glass and can not find any flaws.

    What can I do to trouble shoot this board?

    ReplyDelete
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    1. Unknown27 March 2014 at 20:30

      I had problems at first too. The solution to mine was changing the 100n cap. The first one was bad. It may be a bad board component.

      Delete
    2. chumbox 27 March 2014 at 22:45

      First thing to check is that you get the clean true bypass signal going through with the switch off. If you aren't even getting that (which requires no power or any components on the effect board) then you may have a 3PDT switch or input / output jack wiring issue.

      Once you have established you are getting the true bypass signal then make sure your effect wiring is correct. If this is ok I then always move onto ground wiring and power wiring in case the whole board just isn't get correctly powered. You can use a multimeter to follow the signal if need be.

      If you are sure about this and have checked all your solder and cuts, the first component I usually blame is the pinout of the transistor. Make sure the collector, base and emitter are as stated. The odds of a cap or resistor are possible but these are pretty stable even with terrible handling.

      Start with the true bypass signal and let us know if that is even happening first off. :)

      Delete
    3. chumbox 27 March 2014 at 22:46

      and when I say a 3PDT switch issue I don't mean faulty switch, I mean a wiring issue across the switch. Those switches are tough as guts and are 99% ok in my experience parts wise.
      :)

      Delete
    4. farmereffects28 March 2014 at 02:35

      This comment has been removed by the author.

      Delete
    5. farmereffects28 March 2014 at 02:36

      @chumbox - I had the switch working correctly it was bypassing right and everything. But I will check the power and ground like you said!

      Thanks a ton!

      Delete
    6. chumbox 28 March 2014 at 02:40

      DIYstompboxes has a great forum article on 'what to do when it doesn't work' that might provide some more help.

      http://www.diystompboxes.com/smfforum/index.php?topic=29816.0

      Delete
    7. farmereffects31 March 2014 at 03:40

      This comment has been removed by the author.

      Delete
  23. Larsa29 March 2014 at 21:57

    Hi guy's! Is it okey to sub the 2m resistor with a 2m2?

    ReplyDelete
  24. Larsa29 March 2014 at 22:26

    Doh! Just read vaas comment- sorry

    ReplyDelete
  25. Sebastian Mann Andersson16 May 2014 at 22:32

    Built it, works fine with a 2m2 cap instead of a 2m cap. Thanks for an amazing site and all you guys talking and sharing your thoughts and results with the rest!

    ReplyDelete
  26. Unknown2 June 2014 at 22:04

    I built this pedal, the sound is cool!
    But In my opinion lack a bit of gain,Bass are not cute, they fart.
    It seems more 'fuzz' than overdrive.

    ReplyDelete
  27. Guichanism25 October 2014 at 19:24

    Can someone draw point to point wiring from the board to power jack, I/O jacks, pots, and 3dpt switch?
    im starting to learn how to build pedals.

    ReplyDelete
  28. Tokai7325 October 2014 at 20:23

    Check this out: http://tagboardeffects.blogspot.fi/2012/02/offboard-wiring.html

    ReplyDelete
    Replies
    1. Guichanism26 October 2014 at 03:12

      I still don't know where to connect the wire on my board.
      For EM Drive, someone drew it out so I understood.
      EM drive's in and out of the board was actually from the pots, but i dont know how paramount wiring works.
      Especially when there is a tone pot.

      Delete
    2. Zach28 October 2014 at 13:43

      Check out the notes for building the pedal, which are under the layout. It says you need to connect gain 1&2 to tone 2, so run a wired between lugs 1&2 of the gain pot and run that to lug 2 of the tone pot. The input goes into lug 3 of the gain pot, so you'll run a wire from the switch to lug 3 of the gain pot. The output is from lug 2 of the volume pot, so you'll run a wire from the switch to lug 2 of the volume pot. If you look at the offboard wiring diagram, where you see it showing input and out from the board, that will be lug 3 of the gain pot, and lug 2 of the volume pot respectively.

      Delete
  29. RockyT28 October 2014 at 05:56

    it says Gain 1&2 to Tone 2. Do they go separately from the gain pot, to Tone 2? Or do you add a jumper from Gain 1 to Gain 2, then out to Tone 2. Or do you you jumper from Gain 2 to Gain 1, then out to Tone 2? is there a jumper involved? or not?

    ReplyDelete
    Replies
    1. dbat6928 October 2014 at 08:41

      It doesn't make a difference how you do it as all you are doing is making an electrical connection across all three terminals i.e. you are connecting them together, just do what ever is the easiest and neatest to suit your build

      Delete
  30. Guichanism29 October 2014 at 00:46

    How similar does this version sound compared to the original with Diode?

    ReplyDelete
    Replies
    1. Zach29 October 2014 at 03:15

      the diode in the schematic is not involved in the circuit. it's there for reverse polarity protection. it's not really needed. so with or without it the effect will sound the same.

      Delete
    2. Guichanism29 October 2014 at 06:38

      Thank you!!
      MAN I LOVE THIS BLOGGGGG

      Delete
  31. Guichanism29 October 2014 at 06:40

    Would using PIO caps for 100n, 220n, and 2n2 improve sound?
    what does the original Paramount have?

    ReplyDelete
  32. ξεναγός νεκρόπολης2 January 2015 at 17:58

    you didn't wrote what values you got?!
    anyway...with some maths,you can add caps and resistors in oarallel or in series to be able to go as close as you can to the given values

    ReplyDelete
  33. Unknown8 February 2015 at 05:52

    Since you could run the original Paramount at 18V, is there any reason you couldn't run this version at that voltage as well? Anyone have any experience doing so?

    ReplyDelete
  34. Unknown13 February 2015 at 09:38

    Hi,
    I want to build my first DIY effect pedal and I have question about the offboard wiring. I want to wire an Emerson Paramount OD board to the different jacks, pots, etc. For not to be wrong, i have draw the wiring schematic here:

    http://jbadini.piwigo.com/picture?/1/category/1-effect_pedal

    Have I made mistakes or is it correct??
    Thanks for your answers!

    ReplyDelete
  35. Unknown26 February 2015 at 17:20

    Hello, I'm new in this blog, I'm having trouble with the tone pot, when is in the middle position I have a gain drop, help please!!

    ReplyDelete
    Replies
    1. Unknown4 July 2015 at 05:11

      I have the same problem, but when my tone pot its on treble position, it is a gain drop... And when its at bass position have a extra boost!!!! I dont know why :/

      Delete
    2. Unknown5 July 2015 at 20:59

      Wich tranny are you using???

      Delete
  36. Nathaniel Clements17 June 2015 at 15:45

    Hi all,

    I seem to be having trouble with the tone know on this build. It does affect the tone as expected, but it seems to also affect gain and possibly volume. When I set the tone know to a bassy setting it gives a dramatic boost in gain as well. I perceive a volume boost too, but I am not sure if that is actually boosting the volume or if it is just perceived volume from the extra gain. Conversely, setting the tone knob to a trebly setting actually seems to clean up the signal and removes the gain. All of this seems to happen independently from the gain knob which functions perfectly. I have been over the wiring now multiple times, and I can't find anything wrong. I checked for solder bridges and found nothing. I have checked all my grounds and run continuity checks on everything. I am at a loss for what might be causing this. Any ideas?

    ReplyDelete
    Replies
    1. Unknown4 July 2015 at 05:18

      I have the same trouble.. We need help... I have mine on protoboard, not soldered yet! I change caps.. And still causing trouble..

      Delete
    2. Unknown5 July 2015 at 21:00

      Which tranny are you using?

      Delete
    3. Nathaniel Clements6 July 2015 at 19:16

      I am using the MPSA13. I didn't make any part substitutions.

      Delete
    4. Unknown9 July 2015 at 04:25

      I cannot fix it yet... I'm using MPSA29, I have the same trouble... Did you finished?

      Delete
    5. Unknown25 October 2015 at 21:54

      Hi there,
      Yep. I just built this last night and have noticed the exact same issue. Tone set to zero gives an increase in gain and tone set to max seems to clean it up a little. Something is obviously not quite right. Also noting that the gain is not as high as that seen (heard) in the videos.

      Anybody else noticed this? Any suggestions as to what might be the cause?
      Regards
      Mark

      Delete
  37. Unknown13 July 2015 at 05:12

    Somebody can help us with this build? IvIark help!

    ReplyDelete
  38. Unknown20 October 2015 at 23:50

    Anyone confirm this build working at 18v? I want to put a chargepump into my 1590A build!

    ReplyDelete
    Replies
    1. Unknown21 October 2015 at 03:11

      If your electrolytic cap is rated for 25V you'll be fine to run it at 18V. Not sure what the benefits of higher voltage will be for a circuit like this tho. :)

      Delete
    2. Unknown21 October 2015 at 22:23

      Hey Charles Sale! Thanks for the reply! I'm so dumb. Such a low parts count. The only components that really care about voltages are elec caps, ic, and transistor... Should've known it would work right off the bat =X

      Delete
    3. Unknown22 October 2015 at 01:39

      Yeah most regular caps are rated for at least 60V or so, and transistors are rated around 50V I think? At least for MPSA13s. Actually they seem to be around 30V. Anyway, there's no harm in trying I don't reckon.

      Delete
  39. Unknown26 October 2015 at 15:26

    Just in case builders are still confused about the TONE knob. I've confirmed that the volume increase going CCW (bass side) and the volume decrease going CW (treble side) is indeed how the original EM Paramount Drive works! I've built this into a 1590a and compared it with my friend's recently purchased Paramount.

    I'm really happy to say that the sound identical :)

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    Replies
    1. Unknown26 October 2015 at 15:27

      *I'm really happy to say that they sound identical :)

      Delete
    2. Unknown26 October 2015 at 20:51

      Many thanks for this update! I was still thinking that mine sounds quite different to the one in this clip: http://www.youtube.com/watch?v=pHGaUNBK4ik. But I did only have a little testing. To me, the gain seems lower than the clip. Although I was testing at night and not really digging in. Thanks again!

      BTW, did you substitute any parts at all? Or just stock, per the provided BOM?

      Delete
    3. Unknown26 October 2015 at 21:57

      Hey, mdtcarroll! My initial build I didn't substitute any parts. Later I switched out the 2n2 with a 1n and added a 100n to the 220n for a total of 330n, which, as you might have read above, changes the tonal range. BUT

      When I tested them side by side, this didn't affect my tonal range. They sounded exactly the same. I even had 2 of my sound guys have a listen for their opinion.

      Perhaps larger/smaller values would change the tone!

      Delete
  40. Unknown21 November 2015 at 03:29

    Thanks for the layout, I built this circuit and played it for a while unboxed, it has some good tones. Once I boxed the circuit and added it to my pedal board I found it doesn't seem to be interacting properly with my other pedals. If I use this pedal in front of anything with a buffer, (boss tu2 for example) the paramount curcit gets loud and the volume control becomes unresponceive. Acts the same way if a second overdrive is enguaged after this curcit. By itself, or at the end of my loop it works perfect, it's very strange. Anybody have any ideas, or is this normal?

    ReplyDelete
  41. Boris27 January 2016 at 10:50

    Hi
    I also really breath when the volume is in the last ten percent.
    Someone has an idea or a solution?
    Thank you

    ReplyDelete
  42. Boris27 January 2016 at 10:51

    Hi
    I also really breath when the volume is in the last ten percent.
    Someone has an idea or a solution?
    Thank you

    ReplyDelete
    Replies
    1. Unknown16 March 2017 at 22:22

      i have trouble with it too, look at the schematic it looks like it has 2 100n cap and 1n4001 diode and the vero layout does not show it.

      Delete
  43. Unknown16 March 2017 at 22:19

    the vero layout is missing the 1n4001 diode and a 100n capacitor, looking at both schematic its seem that a 100n cap is parralel to the electrolytic cap, also next to it is the 1n4001 diode, the vero layout does not have these, anyone who only follows the vero watch out i made a mistake i should follow the schematic unless im wrong, i built it and it works fine but does not seem to stack well with other pedals imma try and add these missing parts.

    ReplyDelete
    Replies
    1. chumbox 17 March 2017 at 02:49

      As Justin mentioned won't impact the tone at all. If it doesn't stack well and you built it right then it just doesn't stack well with the pedals you've tried. I found it was fizzy and not that great as an overdrive anyhow. There are a few vids around of people stacking it that might help.

      Delete
    2. Unknown17 March 2017 at 17:12

      thanks man for sure

      Delete
  44. Unknown17 March 2017 at 00:35

    That's not a mistake. Those parts are an extra power filter and a reverse polarity protection diode. Ivlark always omits those to save room on the layouts. They aren't necessary to the effect, or it's operation.

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    Replies
    1. Unknown17 March 2017 at 17:13

      i see okay thanks man i thought i made a mistake

      Delete