tag:blogger.com,1999:blog-6847048658257278783.post7135338459016957737..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Leegazzy - Carvin Legacy EmulatorIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger80125tag:blogger.com,1999:blog-6847048658257278783.post-75840724766329206782020-03-07T02:32:54.614+00:002020-03-07T02:32:54.614+00:00I Wanna do this drive but i have used this schemat...I Wanna do this drive but i have used this schematic and this layout so presence 1 goes to out and 2-3 after cap to groud i cant get any sound <br />https://hosting.photobucket.com/albums/ll229/delta_lol/Leegazzy2_zpsb1aaa14a.png<br />any sugestiolns? <br />Sveto389https://www.blogger.com/profile/06528737787702842124noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-41538866853089207322019-07-15T21:56:49.146+01:002019-07-15T21:56:49.146+01:00guys, I know this is a post to the past but I have...guys, I know this is a post to the past but I have solved that thin squeek oscillation sound with a boss buffered pedal in front of those diy circuits. It worked on Friedman BE-OD , 7th Heaven, and this Legacy emu. The boss ds-1 buffer makes the sound a bit (very tiny bit) choked but solved the oscillation problem for me. Hope you all made that working.mourningwoodhttps://www.blogger.com/profile/08657578093372462307noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75125318457620854922017-09-27T06:48:00.201+01:002017-09-27T06:48:00.201+01:00I am also interested in a vero layout for your ver...I am also interested in a vero layout for your version. I have built this pedal and it sounds good, but it has too little gain :(Pudas666https://www.blogger.com/profile/16719613274202751836noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-62455282405350730312017-08-24T15:47:45.509+01:002017-08-24T15:47:45.509+01:00your own adjusted pcb? that's awesome~
btw, an...your own adjusted pcb? that's awesome~<br />btw, any idea how should I do it well on veroboard?<br />separate 2 board? wanna try it.. pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-48270419995476369482017-08-16T07:19:46.723+01:002017-08-16T07:19:46.723+01:00Here's the design and a picture of the layout ...Here's the design and a picture of the layout I made: https://goo.gl/photos/9WykcveuVy8jyC7r6<br /><br />Anonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-51466766246655613822017-08-16T07:00:33.239+01:002017-08-16T07:00:33.239+01:00OK - my Leegazzy is working perfectly now! Gain is...OK - my Leegazzy is working perfectly now! Gain is excellent and the tome is exactly what I was looking for!<br /><br />I have built the tone stack separately - really needed that to tame the higher frequencies a lot. Now thinking about a good enclosure. <br />I'll post some sound samples later.Anonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26173505154041485782017-07-15T18:26:53.649+01:002017-07-15T18:26:53.649+01:00so glad to know your board working now~
btw, my b...so glad to know your board working now~ <br />btw, my board is the same issue on bias between Osc/low gain..<br />I'm not too despair, if run at 15-18v seems better, but low gain still..I even add a Ts9 in front to boost it more.. [yea,why not? <br />anyway, enjoy your board, dude~ pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-72163740599891286632017-07-10T17:42:00.096+01:002017-07-10T17:42:00.096+01:00BTW - if I bias to a high voltage I get oscillatio...BTW - if I bias to a high voltage I get oscillations too, but the gain and sound at lower voltages (around half of the power voltage, in my case 9.5 V) are good.Anonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-6672312305273306802017-07-10T17:40:14.573+01:002017-07-10T17:40:14.573+01:00...made some progress over the weekend...I had the......made some progress over the weekend...I had the whole thing working, I had to replace Q2 which appeared to be the culprit, after that the whole thing worked fine, until I put it back into the enclosure. I measured everything again and this time Q1 (which miraculously worked again previously) looks to be defective. I'll replace that one next weekend and see if that fixes the problem.Anonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-63364849884107794412017-07-07T21:24:29.328+01:002017-07-07T21:24:29.328+01:00ok, I'm not expert on it but I'd try helpf...ok, I'm not expert on it but I'd try helpful to you; if q2,3 working normal, I'll check around on q1: links and cuts, solder bridge, Components value and position, check wiring also..'if nothing change'.. than swap/replace the Q1 jfet even replace the q1 trimmer..'I hope it sounding now'.. if not, take some photos and q1-4 voltage w/DGS, post here or better debug page get more helps~ try~pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-34890262290144427432017-07-07T19:55:29.974+01:002017-07-07T19:55:29.974+01:00I'm building it right now! :)
I have the basi...I'm building it right now! :)<br /><br />I have the basic stuff done, now debugging...as it doesn't work :) <br /><br />This is my first diy stomp box so I made many beginners mistakes, blew up some parts and had to redo most of the soldering. Still not working ut I'm not pessimistic yet. For some reason I don't seem to get Q1 to work properly, I keep reading high values for drain-to-ground (18v, using a 19.5v power supply).Anonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-72940471614737939442017-07-02T23:05:41.994+01:002017-07-02T23:05:41.994+01:00thanks Rob, those for record or anyone need some p...thanks Rob, those for record or anyone need some pic.<br />hv you built this one? pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52495443138523181262017-06-19T18:17:00.859+01:002017-06-19T18:17:00.859+01:00Nice pics, thanksNice pics, thanksAnonymoushttps://www.blogger.com/profile/12879000233290020906noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-22683114917205871832016-05-25T21:22:25.272+01:002016-05-25T21:22:25.272+01:00F**k this. Already spent something like 20 hours o...F**k this. Already spent something like 20 hours on this circuit. As with all bias-happy JFET circuits, i built two. One with sockets and trimmers and other without them. This method allows me to find the suitable set of FETs, bias them just right and then solder them to the other board with fixed bias resistors. I have old bag of good J201s, tons of newer way off-spec crap J201s, good 2N5457s, 5458s, J310s, J112s, MPF102s, BF244s and BF245s to name a few. No. This piece of s**t just won't bias correctly. With 4,5-5 volts at drains, it's barely unity and gain is next to none. Biasing by ear and some lucky sets takes it closer to the demos, but then there are issues with oscillation.<br /><br />Guess i'll have a few more rounds with this before giving up. Thought i'd share my failure though. Just in case some of you can't get it running properly - you are not alone.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-81712924355588079782016-03-31T05:11:25.097+01:002016-03-31T05:11:25.097+01:00Built my Leegazzy, easy to set 2n5457s to 4.5v..
a...Built my Leegazzy, easy to set 2n5457s to 4.5v..<br />also built the charge pump to run at 18v,<br />plug n play, sounds great.. and thanks again to the vero.<br />here some photos: https://goo.gl/photos/rXo7EisJppZA95E7A pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-36499947407998841112015-03-14T19:41:09.448+00:002015-03-14T19:41:09.448+00:00Finally my DIY Jfet Carvin Legacy Pedal is ready f...Finally my DIY Jfet Carvin Legacy Pedal is ready for boxing. What are your opinion?<br />https://soundcloud.com/diminalbantov/carvin-legacy-diy-jfet-preamDimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-22348067127691065852015-02-15T17:14:41.966+00:002015-02-15T17:14:41.966+00:00Thanks! Any suggestions about the box wiring?
Ive ...Thanks! Any suggestions about the box wiring?<br />Ive got some oscillation....Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15898568938515065222015-02-13T13:04:44.983+00:002015-02-13T13:04:44.983+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/07313414902155526073noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-27952235775768874962015-02-05T18:27:07.686+00:002015-02-05T18:27:07.686+00:00What was the problem with Q3? :)What was the problem with Q3? :)Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-24461417757132755022015-01-29T14:30:25.068+00:002015-01-29T14:30:25.068+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/07313414902155526073noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80783907357489260492015-01-29T10:21:50.460+00:002015-01-29T10:21:50.460+00:00Measured from the guide :
http://runoffgroove.com/...Measured from the guide :<br />http://runoffgroove.com/fetzervalve.html<br />Yeah its typo error. Its negative!<br />Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-41474796634346169372015-01-29T10:03:57.290+00:002015-01-29T10:03:57.290+00:00Looking for real j201 and 2n5457. If someone is wi...Looking for real j201 and 2n5457. If someone is willing to help and sell a few please write me! :)<br /><br />The transistor I own are all fake....<br /><br />A friend of mine measured them. <br /><br />Here are 3 of "j201":<br /><br />iDss and Vp<br />2.7mA / 2.09V<br /><br />1.88mA / 1.63V<br /><br />2.41mA / 1.92V<br /><br />All 10 that I have are like that.<br /><br />Dimi<br />Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-8070351671318637122015-01-23T11:02:53.882+00:002015-01-23T11:02:53.882+00:00Thanks! I'm in Bulgaria :)Thanks! I'm in Bulgaria :)Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-21808103931297105952015-01-21T20:08:23.252+00:002015-01-21T20:08:23.252+00:00Dear Heiko, Thank you for being willing to help!!!...Dear Heiko, Thank you for being willing to help!!! Only through experience of trial and suffering can the soul be strengthened, ambition inspired, and success achieved<br />Is it possible to upload audio demos of your build, using 9v and 18v.<br /><br />It seems you build it, following strictly the layout posted in this full with information blog.<br /><br />Big thanks to the author for his enormous work!Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53761185526807016672015-01-21T19:40:32.098+00:002015-01-21T19:40:32.098+00:00Lastly, I've tested the boards and they sound ...Lastly, I've tested the boards and they sound "great" but from 19v power supply.<br /><br />If you know how to modify your current batch of jFets corresponding elements in the each stage, then you will get it working as it should.<br />But, again this is not for beginners! :)Dimi Nalbantovhttps://www.blogger.com/profile/16033840111375146003noreply@blogger.com