tag:blogger.com,1999:blog-6847048658257278783.post4444592795642973955..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: MXR Noise GateIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger91125tag:blogger.com,1999:blog-6847048658257278783.post-45165728111657184122024-01-10T21:09:34.460+00:002024-01-10T21:09:34.460+00:00Built this without suggested modifications but fix...Built this without suggested modifications but fixed the 2M2 resistor routing to ground. Works fine. No squealing or funny noises. I tested different low to high hfe matched 2n3904’s pairs. Didn’t notice much difference. I’ll test a bit more and I think this is going to be boxed.Henrihttps://www.blogger.com/profile/02742235098284585727noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69875574831549554852023-12-07T13:06:58.567+00:002023-12-07T13:06:58.567+00:00Can someone please confirm if this is working or n...Can someone please confirm if this is working or not and to which schematics this one is bound to ?slammer88https://www.blogger.com/profile/07372026859371600859noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-92179730841059603792023-04-21T12:19:59.176+01:002023-04-21T12:19:59.176+01:00There's a mistake in the third row regarding g...There's a mistake in the third row regarding ground. The 680r meets with the 2M2 input pulldown resistor ground leg and the 1uf cap. That's very wrong. The 1uf doesn't even fit in the layout. Take that into account. Cheers!Antoniohttps://www.blogger.com/profile/15088749141506941654noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64810826438519367252021-10-17T08:44:24.266+01:002021-10-17T08:44:24.266+01:00In my mxr NG ,, i changed 680ohms to 1.39 k and 1m...In my mxr NG ,, i changed 680ohms to 1.39 k and 1mf caps 2nd and 3rd row bottom right changed to .69 mf electro.jfet i used 2sk118, 2n3904 trans. NE5532 for op amps.<br />It works guyz i hope it will help in any way.more power.Jun dhttps://www.blogger.com/profile/07905810487041216546noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-17921009913997139452021-04-06T04:40:44.801+01:002021-04-06T04:40:44.801+01:00The non polar 1mf cap in parallel with 100k res is...The non polar 1mf cap in parallel with 100k res is supposed to be 10nf not 1mf guys. <br />Jun dhttps://www.blogger.com/profile/07905810487041216546noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-78473434769727303322021-03-31T06:25:31.716+01:002021-03-31T06:25:31.716+01:00The modded version is verified. It works and i don...The modded version is verified. It works and i dont need to alter anything. Its the mbps that is wrong. It does not seem to fit wt the schem. Do it works. Greetings fro Philippines. Jun.Jun dhttps://www.blogger.com/profile/07905810487041216546noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-17708369355655391472021-03-31T04:42:33.825+01:002021-03-31T04:42:33.825+01:00The layout is verified,. It works fine. I used a 2...The layout is verified,. It works fine. I used a 2sk118 jfet. Jun. Rockin from Philippines. More power!!Jun dhttps://www.blogger.com/profile/07905810487041216546noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-45355131566408925352020-08-19T23:53:48.825+01:002020-08-19T23:53:48.825+01:00André mention adding a send and return jacks to hi...André mention adding a send and return jacks to his build, but not much details on how... Can anyone explain how to do that?LPhttps://www.blogger.com/profile/10728089471792736579noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-24482863820546336182020-06-19T15:19:23.690+01:002020-06-19T15:19:23.690+01:00Why did I make it when the 3pdt on dug sounded. I ...Why did I make it when the 3pdt on dug sounded. I have given an additional 1M R input to ground or output to ground but still. Can anyone help me?Wahyu ekohttps://www.blogger.com/profile/03327805263279044062noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2967391173310836102020-06-19T15:19:03.223+01:002020-06-19T15:19:03.223+01:00Why did I make it when the 3pdt on dug sounded. I ...Why did I make it when the 3pdt on dug sounded. I have given an additional 1M R input to ground or output to ground but still. Can anyone help me?Wahyu ekohttps://www.blogger.com/profile/03327805263279044062noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75916214505301281242020-06-12T21:52:26.955+01:002020-06-12T21:52:26.955+01:00another observation:
the tonebad PCB and schemati...another observation:<br /><br />the tonebad PCB and schematic do not match.<br /><br />The PCB shows a 47p cap between pins 1 and 2 on the IC. This might help with oscillations if you experience them.<br />Sensei Timhttps://www.blogger.com/profile/04338775054703359643noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75963218400069178312020-06-12T02:36:21.411+01:002020-06-12T02:36:21.411+01:00Y does it look like the 1uf cap by the ic goes in ...Y does it look like the 1uf cap by the ic goes in a cut?Kharthttps://www.blogger.com/profile/03099363314278307089noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64777635911029491092020-04-30T12:43:58.342+01:002020-04-30T12:43:58.342+01:007-year thread-bump! Just built this. I was getti...7-year thread-bump! Just built this. I was getting the same issues as Thommo, but for some reason I have a whole lot of 2N5952s, so I socketed that and started swapping them. It works now. Every JFET I tried in there works a little differently.Andy Millerhttps://www.blogger.com/profile/17294129878920769054noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-58340384633392779452020-01-22T19:29:23.986+00:002020-01-22T19:29:23.986+00:00Mine works beautifully. If you are substituting tr...Mine works beautifully. If you are substituting transistors or op amps from those listed in parts list, you will need to make changes to resistors to maintain correct biasing. I cannot tell you what those will be. For the 2N5485 FET, you will need to make changes as stated in the red text at the beginning and carefully note orientation. For what it's worth, I used TL072 op amp and matched 2N5088 bjt.s. 2N3094 matched bjt's also worked but tone was not as warm. It still works with unmatched bjt's but the release oscillates. Make sure the 2.2M resistor is between input and ground. The stripboard layout is wrong.Remihttps://www.blogger.com/profile/14184420780081455106noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87713643521770035162020-01-22T05:01:52.599+00:002020-01-22T05:01:52.599+00:00Mine doesnt work at all! i replace the JFET transi...Mine doesnt work at all! i replace the JFET transistor to a 5457 and doest nothing Anonymoushttps://www.blogger.com/profile/03365069089463763651noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-86055182648714635182020-01-04T09:34:58.682+00:002020-01-04T09:34:58.682+00:00Indeed! That 2.2M is connected to the ground just ...Indeed! That 2.2M is connected to the ground just through the 1uF cap. It seems a mistake, pretty weird. The thing was already said in a comment above, but it was ignored.<br /><br />It should be easy move the 2.2M resistor from the input to the pin 4 of the IC stripe connecting it to the ground.<br />I never built it, but could the layout a bit messy with the impedance with this "mistake"?<br />Maybe is for this tertiumsquid1 need a buffer in front to make work it better.Elijah-Baleyhttps://www.blogger.com/profile/16374916649117645180noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69617217315038818302020-01-03T21:45:52.360+00:002020-01-03T21:45:52.360+00:00Seven years later... I traced the Tonepad schemati...Seven years later... I traced the Tonepad schematic. Almost embarrassing to ask but shouldn't the 2.2M resistor at input go to ground. Hint - see the break on the ground rail strip 3 hidden under the 1uF capacitor?Remihttps://www.blogger.com/profile/14184420780081455106noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-35317396058959976632019-11-01T00:35:11.201+00:002019-11-01T00:35:11.201+00:00Mine works great, been using it for years now, tho...Mine works great, been using it for years now, though it adds a bit of a fuzzy distortion to the signal if I don't have some sort of buffer in front of it. Works great in the effects loop or after an SHO with unity gain.tertiumsquidhttps://www.blogger.com/profile/16175375034329040146noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-8457857630507614942019-06-03T07:24:05.991+01:002019-06-03T07:24:05.991+01:00this layout verifit??this layout verifit??chukhttps://www.blogger.com/profile/04686155918897211019noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47128461074661461352019-02-04T06:38:58.679+00:002019-02-04T06:38:58.679+00:00Hi, what's the orientation for the 1uf tantali...Hi, what's the orientation for the 1uf tantalium?<br />Thanks!Cristianhttps://www.blogger.com/profile/12636466164695467383noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73926388055292022302018-04-29T01:02:46.379+01:002018-04-29T01:02:46.379+01:00Those are cuts in the copper tracks. Usually made...Those are cuts in the copper tracks. Usually made with a small drill bit twisted by hand just a few times. Kris Thorsheimhttps://www.blogger.com/profile/03241158461324941002noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-57839953009016779852018-03-08T23:29:59.007+00:002018-03-08T23:29:59.007+00:00Hello, I have a question about the plate,
What are...Hello, I have a question about the plate,<br />What are the squares with a red dot inside?<br />Thank youAnonymoushttps://www.blogger.com/profile/00018141785322674747noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50186047042143482062017-12-22T16:09:16.363+00:002017-12-22T16:09:16.363+00:00just finished the MXR NG, using 2SK30A for the fet...just finished the MXR NG, using 2SK30A for the fet. It works. thnx for the layout.segenkhttps://www.blogger.com/profile/00522346185835786990noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14220626853008327092017-09-18T20:41:02.951+01:002017-09-18T20:41:02.951+01:00I used Geiri's mods and Shaun Martin's sug...I used Geiri's mods and Shaun Martin's suggestion of only using the attenuation mod on my build. https://puu.sh/xCWQD/28d0711755.png is the modded layout i went from.<br /><br />I actually had something mildly interesting happen with mine. Upon first test my bridge pickup was working correctly, but my neck pickup was making a "fwoff fwoffsh fwosff" noise that was very loud and I couldn't figure out why. I tested other guitars and the problem was localized to this one, so I opened it up, and while i was still getting sound the neck pickup wire was hanging by a thread. I just thought it was interesting that no other pedal had issue with this. so I had no idea it wasn't working fully.<br /><br />I bought a bunch of different transistors to play with in a big muff (pink flesh specifically) and measured the HFE of every single one to get the best match I could. Turned out that it was a pair of ~200 HFE 2n3904s. I don't know if my cheapo meter's HFE is calibrated, but I figured as long as they matched on the meter it would be ok, and it seems to be.<br /><br />I don't have a ton of noise gate experience, but its pretty meh at low gain and soft playing, atleast mine is. It sounds awkward even with a weak gate, perhaps I just need to play with it more. If you want to hammer out some super tight metal riffs its great though, so thats what I'll use mine for. Quick demo here https://www.youtube.com/watch?v=_JJtU06Ud-Y<br /><br />I boxed mine in a 125B from tayda. Pictures here https://imgur.com/a/UlQ1O<br /><br />Thanks for the layout Miro and for the suggestions Shaun Martin and Geiri.Anonymoushttps://www.blogger.com/profile/17203513867537529630noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75960323469110481802017-05-13T15:32:39.981+01:002017-05-13T15:32:39.981+01:00really appreciate that mod info, dude, thanksreally appreciate that mod info, dude, thanksAnonymousnoreply@blogger.com