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Re: Colorsound Power boost noise issue [message #171331 is a reply to message #171011] Tue, 15 August 2017 12:17 Go to previous messageGo to next message
messages@element14.co
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Batteries.... I was using batteries It's fine??? Now, that's weird... It was motor boating without a guitar, you heard the video!! With the volume right up it sounded horrid.
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Original article at https://www.element14.com/community/message/227231?tstart=0#227231
Re: Colorsound Power boost noise issue [message #171332 is a reply to message #171011] Tue, 15 August 2017 12:30 Go to previous messageGo to next message
messages@element14.co
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This may sound a bit pedantic but I'm struggling to pin down differences, what kind of batteries ? The ones I used were Duracell  "Industrial" alkaline batteries straight out of the box. I'm wondering if power source impedance matters (I'll test for that soon.) MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227204?tstart=0#227204
Re: Colorsound Power boost noise issue [message #171333 is a reply to message #171011] Tue, 15 August 2017 12:34 Go to previous messageGo to next message
messages@element14.co
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Ok, the batteries were brand new "Energizer" batteries. I do have a 18v DC power supply to that I could try. The board I have here is running perfectly... With no issues.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227233?tstart=0#227233
Re: Colorsound Power boost noise issue [message #171334 is a reply to message #171011] Tue, 15 August 2017 12:46 Go to previous messageGo to next message
messages@element14.co
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Energizers should be OK - I'll still explore the possibility. I probably won't be able to do much on until the weekend now - but you might get lucky if real work hits a boring patch. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227218?tstart=0#227218
Re: Colorsound Power boost noise issue [message #171335 is a reply to message #171011] Tue, 15 August 2017 12:48 Go to previous messageGo to next message
messages@element14.co
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Many thanks for taking the time..... i'm interested in why this is happening even more now.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227205?tstart=0#227205
Re: Colorsound Power boost noise issue [message #171399 is a reply to message #171011] Sat, 19 August 2017 14:23 Go to previous messageGo to next message
messages@element14.co
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I connected your board up to a guitar and amplifier running off the new Duracell batteries - no problems and certainly no motorboat noise. I then tried a 100R resistor in series with the batteries and still no problems. Did you test the board out of the metal box - I'm wondering if something might have been shorting to the box, or possibly a problem with the switch wiring. I can't think of anything else useful I can do with it  - so let me know if you can think of any other tests - otherwise I'll send it back to you. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227275?tstart=0#227275
Re: Colorsound Power boost noise issue [message #171401 is a reply to message #171011] Sat, 19 August 2017 15:15 Go to previous messageGo to next message
messages@element14.co
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Hi Michael,Is there a chance that the board is overdriving Andy's guitar amp and the guitar amp is actually what is causing the motorboating?John
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227366?tstart=0#227366
Re: Colorsound Power boost noise issue [message #171402 is a reply to message #171011] Sat, 19 August 2017 15:23 Go to previous messageGo to next message
messages@element14.co
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It's not very likely because Andy's recording shows that the noise can occur when there is no other signal, and with the guitar volume control turned right down. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227361?tstart=0#227361
Re: Colorsound Power boost noise issue [message #171410 is a reply to message #171011] Sun, 20 August 2017 09:54 Go to previous messageGo to next message
messages@element14.co
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This is very strange indeed.... Could it be some kind of interference peculiar to my house? For the record, i tested the board mostly out of the enclosure, as you could see in the videos.... I have built another board and that is ok, (although the motor boating is there very faintly when on the highest gain setting)  I'm at a loss............. The evidence was there.... So what could it be? Send it back.... i'm going to take it to a friends house and try it through his valve amp, and see if it happens there..... I'll report back findings. One question Michael.... What do you hear when the pedal is at full gain..... as that is when it seems to be at its worse?
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227382?tstart=0#227382
Re: Colorsound Power boost noise issue [message #171411 is a reply to message #171011] Sun, 20 August 2017 10:04 Go to previous messageGo to next message
messages@element14.co
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Hello Andy, It's all OK at full gain, quite a bit of hum from the cheapo guitar but no other problems. We've got a digital audio recorder at home so, if you are not in a rush to get it back I'll bring the recorder in and make some recordings for you. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227383?tstart=0#227383
Re: Colorsound Power boost noise issue [message #171412 is a reply to message #171011] Sun, 20 August 2017 10:17 Go to previous messageGo to next message
messages@element14.co
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A recording would be great... Not that i disbelieve you at all... Just want to hear what you hear. now the second question, could it be the guitar wiring?? This guitar wasn't wired by me, the pickguard was bought ready assembled, all i had to do was wire the jack socket and attach the earth wire to the tremolo claw. This is the assembly that I bought about 7 years ago http://www.stratcat.biz/4035.shtml All the  components are of the highest quality possible, and have not caused me any issues before. However, that's not to say something may have degraded or come loose in the last 7 years.... saying that It can't be the guitar as I've experienced the noise without having the guitar plugged in.... 
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227384?tstart=0#227384
Re: Colorsound Power boost noise issue [message #171413 is a reply to message #171011] Sun, 20 August 2017 10:24 Go to previous messageGo to next message
messages@element14.co
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I'd be very surprised if the guitar made a difference - on any I've seen the volume control shorts the signal to ground at minimum setting and that's going to leave you with just the cable impedance shorting the input of the pedal - and your board seems quite happy with that. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227335?tstart=0#227335
Re: Colorsound Power boost noise issue [message #171414 is a reply to message #171011] Sun, 20 August 2017 10:28 Go to previous messageGo to next message
messages@element14.co
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i didn't think it could be the guitar...... Clutching at straws now for an explanation
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227370?tstart=0#227370
Re: Colorsound Power boost noise issue [message #171417 is a reply to message #171011] Sun, 20 August 2017 20:09 Go to previous messageGo to next message
messages@element14.co
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Ok chaps... Updated video. This time I've ran the pedal through my live stage system.  The result is there is still an audible motor boating noise, and I'm at a loss as to what could be causing it 

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Original article at https://www.element14.com/community/message/227347?tstart=0#227347
Re: Colorsound Power boost noise issue [message #171422 is a reply to message #171011] Mon, 21 August 2017 13:51 Go to previous messageGo to next message
messages@element14.co
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We need to see that noise on a scope ! Can you record it as a .wav file somehow - idelly direct - not though  a speaker and microphone. Does it do the same in this rig with the shorting plug instead of the guitar. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227414?tstart=0#227414
Re: Colorsound Power boost noise issue [message #171423 is a reply to message #171011] Mon, 21 August 2017 14:06 Go to previous messageGo to next message
messages@element14.co
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That's a good question.... i'll try it again tonight with the shorting plug and see if it happens. Regarding recording it..... I'll see what i can do
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227441?tstart=0#227441
Re: Colorsound Power boost noise issue [message #171427 is a reply to message #171011] Tue, 22 August 2017 07:28 Go to previous messageGo to next message
messages@element14.co
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Another update.  I didn't get a chance to test it with the shorting plug (to be honest, I forgot) However, I wired it into an enclosure intending to take it to work to try there..... The noise has virtually gone at high gain once it was wired into the enclosure. With the gain turned right up, you can barely hear it, maybe it's wiring. The wire I used when I did the last video above was thin 24 AWG wire, where the wiring I used in the enclosure was 22 AWG. There is a significant difference in the thickness, and the 24 gauge wire being thinner is a lot more prone to breaks than the 22 AWG. Could this be a contributory factor? I've noticed that the wiring in the original Power Boost pedals is the thicker. Dodgy wiring, dodgy soldering or both could have contributed to this noise I guess.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227449?tstart=0#227449
Re: Colorsound Power boost noise issue [message #171434 is a reply to message #171011] Wed, 23 August 2017 07:17 Go to previous messageGo to next message
messages@element14.co
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I loaned the pedal to a guy at work, he took it home, plugged it into his amp and it worked faultlessly.... I'm thinking I've got to look for some sort of root cause in my house. Michael Kellett has tried it with no issues, the guy in Australia has built one and tried it wit no issues, and my friend at work has tried my pedal with no issues.... It's only me that appears to have the issue. the only issue he had was with some noise/humming he believes that was because he was using crappy cables... Certainly no oscillation or motor boating. This is annoying, and frustrating, but at least it's getting me closer to a root cause. I'll take the pedal home tonight and try the shorting plug in it to see if that cancels out the slight bit of noise that's there at high gain.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227546?tstart=0#227546
Re: Colorsound Power boost noise issue [message #171439 is a reply to message #171011] Wed, 23 August 2017 18:24 Go to previous messageGo to next message
messages@element14.co
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Michael, can you do me a favour... Plug the guitar into the pedal, and the pedal into the amp. Turn the bass and treble to 12 o clock, and the gain right up... Then start to turn the guitar volume down... What happens?? What happens here, is that motor boating is very loud when the guitar is turned right the way down. I've tried the shorting plug, and the result is positive... There is NO noise, just the hiss of the circuit. At the recommendation of Ian Dempsey over at the DIYstompbox forum, i tried soldering a 10k resister into the input jack, and it appeared to reduce it slightly. So, at the moment the status is this..... There is only motor boating when the guitar is plugged into the pedal.Without the guitar plugged into the pedal, and holding the input jack in my hand, you get the normal buzzing noise where you're shorting the tip and ground... when you turn the gain up there is NO motor boating.When you place a shorting plug into the input socket, there is NO motor boating just the hiss of the circuitWhen you plug the guitar in, and turn the gain up on the pedal, and turn the volume down on the guitar you get motor boating.I have tried my sons bass guitar in the pedal, and it motor boats ONLY when you turn the guitar volume down.... When the guitar volume is up it's OKMy friend at work has tried my pedal, and said it worked OK no issuesIan Dempsey has made his own pedal from my circuit layout and Electric Warriors schematic, and it works OKMichael Kellett has tried the pedal and has had no issues.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227578?tstart=0#227578
Re: Colorsound Power boost noise issue [message #171442 is a reply to message #171011] Thu, 24 August 2017 07:29 Go to previous messageGo to next message
messages@element14.co
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Hello Andy, I'll do that but not today because the dog is with me (she usually is on weekdays)  and she doesn't like the sudden load noises these experiments make. Should be able to do it on Saturday, or possibly tomorrow: depends if anyone at home wants to play with the dog ! MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227617?tstart=0#227617
Re: Colorsound Power boost noise issue [message #171443 is a reply to message #171011] Thu, 24 August 2017 07:35 Go to previous messageGo to next message
messages@element14.co
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I'm desperate to get this on a scope, with everything plugged in. I think that is the only way i'll find the root cause of this issue. I'm beginning to think it could be the guitar, but we'll see once I test it at work.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227541?tstart=0#227541
Re: Colorsound Power boost noise issue [message #171444 is a reply to message #171011] Thu, 24 August 2017 08:58 Go to previous messageGo to next message
messages@element14.co
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Michael Don't bother with that test. Just send the pedal back to me.... I'll sort out the postage for you, just let me know how much, and I'll pay pal you the money. Address is: Andy betts11 St Benedict's CloseSudburySuffolkCO10 1AF I have taken the pedal and guitar to work, plugged it in and it's working perfectly, no oscillation at all either at full gain, or with the the guitar volume turned off. It has to be something to do with the house, or something. RF interference from somewhere... This has proved that the pedal works as you and Ian Dempsey have said, and that also the guitar is fine. There has to be some kind of interference in my house or something. I now need to find the root cause of the interference..... Any suggestions?
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227598?tstart=0#227598
Re: Colorsound Power boost noise issue [message #171445 is a reply to message #171011] Thu, 24 August 2017 09:18 Go to previous messageGo to next message
messages@element14.co
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I can think of two things - both guitar related: 1) the pot on the guitar is faulty so that at min volume the wiper isn't shorted to earth but open circuit so you pick up load of noise. 2) some other wiring fault on the guitar. I'll post it to you tomorrow - can't get out today - don't worry about the post money - it's been interesting. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227599?tstart=0#227599
Re: Colorsound Power boost noise issue [message #171454 is a reply to message #171011] Thu, 24 August 2017 17:01 Go to previous messageGo to next message
messages@element14.co
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Thanks Michael, I have a very good update...... I think I've discovered what's causing the issue. I got home from work early, and while there was nobody in the house I started turning things off...... And this is what happened. 

EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227604?tstart=0#227604
Re: Colorsound Power boost noise issue [message #171458 is a reply to message #171011] Thu, 24 August 2017 22:29 Go to previous messageGo to next message
messages@element14.co
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Hi Andy,This is great news and very typical of how most of the really hard problems are resolved. I am glad you didn't give up. Now that you are part of the group I hope you hang around and keep us posted on the progress with your color sound pedals.John
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227652?tstart=0#227652
Re: Colorsound Power boost noise issue [message #171459 is a reply to message #171011] Thu, 24 August 2017 22:45 Go to previous messageGo to next message
messages@element14.co
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Time to add some shielding!
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227641?tstart=0#227641
Re: Colorsound Power boost noise issue [message #171463 is a reply to message #171011] Fri, 25 August 2017 05:31 Go to previous messageGo to next message
messages@element14.co
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Shielding inside the enclosure... I think I may have some sticky backed copper shielding which I used ages ago when I built the guitar...
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227642?tstart=0#227642
Re: Colorsound Power boost noise issue [message #171466 is a reply to message #171011] Fri, 25 August 2017 06:58 Go to previous messageGo to next message
messages@element14.co
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John, this is only the beginning  I have built another pedal actually, based on a very early design.... very simple. the famous Fuzz Face. The board is populated, I just need to wire it up and test it..... But that's for another thread
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227633?tstart=0#227633
Re: Colorsound Power boost noise issue [message #171468 is a reply to message #171011] Fri, 25 August 2017 08:58 Go to previous messageGo to next message
messages@element14.co
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Just done some digging, and found this on the Sky website  Sky Q and the terrible RF interference it puts out... - Sky Community  Looks like I'm not the only one that's having issues with this
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227645?tstart=0#227645
Re: Colorsound Power boost noise issue [message #171473 is a reply to message #171011] Fri, 25 August 2017 12:24 Go to previous messageGo to next message
messages@element14.co
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Hello Andy, I've posted you board back to you.Thanks for the interesting journey - and 9 pages of posts say others found it so as well. Good luck with your new Sky-less future. MK
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227655?tstart=0#227655
Re: Colorsound Power boost noise issue [message #171474 is a reply to message #171011] Fri, 25 August 2017 13:17 Go to previous messageGo to next message
messages@element14.co
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Interesting find : ) I've forwarded it to a friend who works there, although not a set-top-box team, just for some more visibility at Sky.
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227670?tstart=0#227670
Re: Colorsound Power boost noise issue [message #171475 is a reply to message #171011] Fri, 25 August 2017 13:35 Go to previous message
messages@element14.co
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Interesting, but ultimately frustrating..... At least I know what the root cause is now, and at least it's highlighted an issue with the new Sky Q system that others may find useful knowing about in case it happens to someone else. I'm now interested to see if this affects all pedals, or just the high gain ones. The next pedal is a Fuzz Face..... I'll start another thread for that one, hopefully it'll be plain sailing from now on. Many thanks for your help with this Michael, it's been really appreciated, And that goes to everyone here that's chipped in with ideas etc, John Wiltrout, Jon Clift, Shabaz to name a few.It's much appreciated. Now on with the next project
EAGLE support forums at www.eaglecentral.ca :: Where the EAGLE community meets.

Original article at https://www.element14.com/community/message/227656?tstart=0#227656
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