tag:blogger.com,1999:blog-6847048658257278783.post4731924242168923933..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Catalinbread RahIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger68125tag:blogger.com,1999:blog-6847048658257278783.post-76107540093316354062021-01-02T09:53:46.166+00:002021-01-02T09:53:46.166+00:00I never built it, but if it works the same of the ...I never built it, but if it works the same of the Box of Rock I think you could try to reduce the two 3.3k resistors between Q1 e Q2. I think not smaller than 100R, else it could be too noisy, but you have to try.<br />Let us to know.Elijah-Baleyhttps://www.blogger.com/profile/16374916649117645180noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59249697882118025012021-01-02T01:50:33.151+00:002021-01-02T01:50:33.151+00:00Hi. Can someone tell me how it is possible to hav...Hi. Can someone tell me how it is possible to have more drive, gain in this pedal?Anonymoushttps://www.blogger.com/profile/03974472964765009733noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-76250743413821563662020-06-17T05:41:33.077+01:002020-06-17T05:41:33.077+01:00Has anyone built this with 2n7000’s?? That’s all I...Has anyone built this with 2n7000’s?? That’s all I gotst. And 1n4744, but I think they should be good.....right??Drayve85https://www.blogger.com/profile/15424685858116259319noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26365388465001978992018-08-27T01:24:59.363+01:002018-08-27T01:24:59.363+01:00Thanks Iago, I eyeballed everything and triple-che...Thanks Iago, I eyeballed everything and triple-checked it and everything is where it’s supposed to be. Today, I hooked it all up to see if there was still noises and now there’s no overdrive ��. It’s as if one of the three gain stages is completely gone. Don’t misunderstand, it makes for an amazing clean Pagey EQ box, but that dirty “whole lotta love” sound is gone. Poof. Vanished. And of course, the low volume static/clicking/crackling returns after a few minutes. There’s a rhythm to it, and the tempo speeds up/slows down as I rotate the gain knob. <br />I’m not exactly sure how to check the voltage on the MOSFET’s, everything I’ve researched talks about special tests off-boards using special tools. How do I poke them when it’s installed and on? Check source to drain voltage? Ugh. Maybe this project was over my head ������. Also. I used 9.1V Zeners, should I have used higher? I’ve read about doubling the rating in case of higher-than-advertised backflow voltage spikes. I’ll probably start from scratch and build a fresh board, with higher rated Zeners and BS170’s from a different manufacturer.Anonymoushttps://www.blogger.com/profile/14378305828646700523noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69905390235163544262018-08-24T01:31:39.029+01:002018-08-24T01:31:39.029+01:00First, you should look for any mistakes on your bu...First, you should look for any mistakes on your build, like a cap or resistor going where it shouldn't go. Then, check the voltages on the mosfets. Iagohttps://www.blogger.com/profile/13478141026000247956noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87156167097911708552018-08-23T13:47:39.285+01:002018-08-23T13:47:39.285+01:00Hey guys, just built this off the schematic and it...Hey guys, just built this off the schematic and it works great. Problem is, after several minutes of playing, any adjustment I make to either the gain or master knobs causes some static and popping to start. It then kind of just takes off on its own like it’s run away. I have to shut it off for a while and then it “resets”. Could this be a PSU issue? Some kind of secret devil magic voltage leaking from a cap? It’s really weird and it’s the first time I’ve built something with transistors. Any help or ideas would be appreciated. Thanks! Anonymoushttps://www.blogger.com/profile/14378305828646700523noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-9475696660581127032017-03-19T17:03:49.269+00:002017-03-19T17:03:49.269+00:00Here's a hint. I can short across all three lu...Here's a hint. I can short across all three lugs of the bass pot and it changes nothing. That is not true of the others. If I connect the first leg of bass & treble together, they generally act like bass & treble controls (at reduced volume). I have traced and retraced the tone control connections and just can't find anything wrong. The circuit sounds really good, just not tone controls. etzeppyhttps://www.blogger.com/profile/17098731413786212979noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73739644484934566492017-03-19T02:43:29.507+00:002017-03-19T02:43:29.507+00:00I had some trouble getting this one working but fi...I had some trouble getting this one working but finally did. I think I still have issue with the tone controls. The gain and master work as expected and overall sound quality is quite good. However, none of three tone controls seem to do much, if anything. Any thought on what could cause that?etzeppyhttps://www.blogger.com/profile/17098731413786212979noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61135861546206282832017-02-18T21:24:31.259+00:002017-02-18T21:24:31.259+00:00Thank you, man! :-)Thank you, man! :-)Ghanoxhttps://www.blogger.com/profile/05092007459165435220noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-33354358423954836892017-02-15T23:24:51.543+00:002017-02-15T23:24:51.543+00:00hey man. there's no difference in the componen...hey man. there's no difference in the components in rev 1 and rev 2. what was changed is a few placements of components which makes the layout easier to wire up. both will sound the same and like the original. with that being said, i would build current layout posted above, rev 2.Zachhttps://www.blogger.com/profile/00044917566185720896noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-22324084126430181972017-02-15T20:49:29.951+00:002017-02-15T20:49:29.951+00:00Hello! What is the difference between rev.1 and re...Hello! What is the difference between rev.1 and rev.2? What to build better? What is closer to the original?<br />P.S. Sorry for my English, I am EuropeanGhanoxhttps://www.blogger.com/profile/05092007459165435220noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80980580257841722302016-03-03T23:54:54.028+00:002016-03-03T23:54:54.028+00:00Ok to correct myself, I had not properly soldered ...Ok to correct myself, I had not properly soldered the Grid 100k resistor on Q2, it is running now and sounds great. the voltages I get are roughly D-5.4v, G-5.0v, S-3.4v does this seem ok? I see voltages listed from guys who have problems but no voltages listed from those who have hadgreat results.<br />Thank you, this has been a fantastic resource and a great fun project!Anonymoushttps://www.blogger.com/profile/01660604136302575953noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-48774723084246941912016-02-29T01:26:48.844+00:002016-02-29T01:26:48.844+00:00Hey Guy, i've just built one of these, for ver...Hey Guy, i've just built one of these, for verifying that i've done things correctly, is there a voltage chart that I can use as reference? My Q2 voltages are different to 1 and 3, and dont match anything else i've seen written in this thread.<br />Thanks!<br />Anonymoushttps://www.blogger.com/profile/01660604136302575953noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-77792335027006274842016-02-16T13:50:58.382+00:002016-02-16T13:50:58.382+00:00Hi there, could the zeners 9v1 be replaced by 12v ...Hi there, could the zeners 9v1 be replaced by 12v zeners as they're used as static protection diodes? In other words, will the limit voltage increase sour the result?Frederik Eriksonhttps://www.blogger.com/profile/05133197265918130589noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1056841502087391432015-09-05T20:17:42.200+01:002015-09-05T20:17:42.200+01:00This comment has been removed by the author.sky.fionhttps://www.blogger.com/profile/16756047383919653097noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-32832490627615143182015-03-27T04:40:37.327+00:002015-03-27T04:40:37.327+00:00Definitely something wrong with your Q1. I think t...Definitely something wrong with your Q1. I think the other two look good. Recheck the board for any stray solder bits or missing cuts/unproperly positioned components. If I'm not mistaken, all the readings of all 3 transistors are very similar on mine. Iagohttps://www.blogger.com/profile/13478141026000247956noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1309424281793185302015-03-27T04:34:50.460+00:002015-03-27T04:34:50.460+00:00You should definitely tell treble and mids do thei...You should definitely tell treble and mids do their job (although all of the controls here are pretty interactive with each other). By bringing mids down and treble and bass up you should hear a big, very distinctive scoop, and treble and bass down + mids up = a lot of mid range presence, with an almost nasal tone depending on how far you go. I like to keep the treble on mine at 11:00 or so, because I do find this pedal circuit very treble-healthy, I find the bass control is maybe the most subtle (I used Sabro's layout, BTW). Iagohttps://www.blogger.com/profile/13478141026000247956noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-88572366762018736422015-02-27T22:53:00.939+00:002015-02-27T22:53:00.939+00:00It seems I'm getting a response similar to tha...It seems I'm getting a response similar to that which I have previously read. The eq seems to have very little to no effect at all. neither treble or mid seems to alter the tone. Bass is fine. Checked again and again,build is fine. Is this just how it is?Anonymoushttps://www.blogger.com/profile/12948082243855367312noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-72872415097834941022015-01-10T00:22:49.663+00:002015-01-10T00:22:49.663+00:00I jsut built this. All EQ controls and Master work...I jsut built this. All EQ controls and Master working, but the gain is not functioning. With the gain off, I get clean signal, but it quiets as I turn up the gain. Here are my voltages:<br /><br />Q1: D= 9.02 G= 0.12 S= 0.00<br />Q2: D= 5.90 G= 2.61 S= 3.13<br />Q3: D= 5.90 G= 2.63 S= 3.15<br /><br />I though Q1 numbers looked odd, tried swapping another BS170, same result.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-7149198263462801032014-06-25T00:54:04.774+01:002014-06-25T00:54:04.774+01:00mark-was there anything wrong with the original la...mark-was there anything wrong with the original layout of this? is that why the original is gone and rev. 2 is posted? I built the original layout a while back, but only the board. now I've come back to finish it, but the original is gone. reading through the comments it seems the original layout worked for a few people, so if its good, could you repost it? a friend of mine just picked up a genuine RAH and I'm curious to try them side by sideatomicwombathttps://www.blogger.com/profile/03006504975865297012noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-42733238522426706462014-06-23T18:49:21.415+01:002014-06-23T18:49:21.415+01:00YOU rule! CheersYOU rule! CheersEND OF THE LIGHThttps://www.blogger.com/profile/10550196730247870845noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3797186379445274742014-06-23T15:22:46.188+01:002014-06-23T15:22:46.188+01:00Nice job buddyNice job buddyIvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-48099336416901754812014-06-23T14:41:56.175+01:002014-06-23T14:41:56.175+01:00My build...gold case
https://masutopedals.files.wo...My build...gold case<br />https://masutopedals.files.wordpress.com/2014/06/wpid-20140623_122832.jpg?w=1456END OF THE LIGHThttps://www.blogger.com/profile/10550196730247870845noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87682389926074589032014-06-23T08:57:43.847+01:002014-06-23T08:57:43.847+01:00Ok... rev1 is working fine. All the noise issues i...Ok... rev1 is working fine. All the noise issues i had were due to the 9v psu. So remember.. if you plan on using a psu for this, you MUST have some sort of filtering between the 9v dc and the board. Cheers Mark another successEND OF THE LIGHThttps://www.blogger.com/profile/10550196730247870845noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-79327706101421603272014-06-21T05:48:03.320+01:002014-06-21T05:48:03.320+01:00Hi Mark..built this and just gettin massive dc hum...Hi Mark..built this and just gettin massive dc hum and abysmal sound. I just realised now, i built rev1! What was wrong with rev1? hELP!!!!!END OF THE LIGHThttps://www.blogger.com/profile/10550196730247870845noreply@blogger.com