tag:blogger.com,1999:blog-6847048658257278783.post2734760356658229146..comments2024-03-28T18:53:30.726+00:00Comments on Guitar FX Layouts: Dunlop Q-Zone QZ1IvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger82125tag:blogger.com,1999:blog-6847048658257278783.post-35683379084456893122022-10-04T21:38:07.079+01:002022-10-04T21:38:07.079+01:00Fuckkkk.... I built this one thinking it was an ac...Fuckkkk.... I built this one thinking it was an actual autowah, did not realize it was a cocked wah effect. In that case, that makes a lot of sense as to why mine sounds like a cocked wah without the auto wah. Yep, it works lol, it def sounds like a cocked wah, and even gives a bit of a volume boost. Spent some time wondering why it wasnt auto sweeping. Has a pretty good range of cocked wah sounds though for sure. DoomOverlordWizardhttps://www.blogger.com/profile/13317615258005592093noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26218361854291182882020-06-23T16:24:37.372+01:002020-06-23T16:24:37.372+01:00Schematic says that all pots are negative logarytm...Schematic says that all pots are negative logarytmics, not logarytmics!<br />So they should be 10kC and 2x470kC not 10kA and 470kA!!! 500kC instead of 470kC are also OK! :)<br />I have build it and it works. Don't bridge the cut between IC1 legs 6&9. It should be there.Pedals Clonerhttps://www.blogger.com/profile/14911008029211459907noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-67411769004570318532016-07-30T10:55:18.151+01:002016-07-30T10:55:18.151+01:00
Hello,
I made this pedal , it works but not perf...<br />Hello,<br /><br />I made this pedal , it works but not perfectly . The problem is in the race of 470K LOG . The changes are significant between 80% and 100% of the stroke of potentiometer.<br /><br />Should I change to LIN or anything else ?<br /><br />Can you help me ?<br /><br />Thanks =)Anonymoushttps://www.blogger.com/profile/13088820389920198459noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26958028831142262102015-12-23T05:40:14.664+00:002015-12-23T05:40:14.664+00:00Thanks for this info, man!Thanks for this info, man!Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75689657693162637122015-12-21T10:28:02.903+00:002015-12-21T10:28:02.903+00:00Had a proto board fabbed for this based on FSB thr...Had a proto board fabbed for this based on FSB thread schem and it works great. Thought I would mention here that reverse log pots (as stated in schem) worked better in terms of expected behaviour and usefulness, I initially had log pots in and it just wasn't right despite being fully working so would recommend reverse log throughout. Fun little circuit this one and something that will be staying on my board! :)Grahamhttps://www.blogger.com/profile/17726511970073329400noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64285308651567859142015-11-30T22:09:43.272+00:002015-11-30T22:09:43.272+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/18283213449920338273noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11063409564299235412015-06-21T20:02:34.428+01:002015-06-21T20:02:34.428+01:00Not sure about this one but maybe still have issue...Not sure about this one but maybe still have issues. Used a cermet trimmer instead of my usual Bourns 3362P which i prefer because its always easier to tune in the sweet spot IMHO purely because i ran out and they are pricey. Anway probably need to be more gentle with a cermet than a Bourns so i will keep tweeking and see what happens. Built the French Fries along side this and it soundsd so much better but i did use a Bourns 25k for that. You never know this one may be a suprise if my tweeking goes well and i have also ordered some Bourns 25k trimmers off good ol' Ebay.Hozy31https://www.blogger.com/profile/16714771534041521767noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14271862387574430592015-05-19T19:00:05.324+01:002015-05-19T19:00:05.324+01:00Mark most likely used that symbol due to the dista...Mark most likely used that symbol due to the distance the cap has to span (2 rows). Most 330n caps are 5mm pitch or bigger meaning they would span 3 or more rows forcing you to bend the legs under the cap itself (the panasonic greenies get stupid big after 100n) So you can use any 330n cap you want as long as you connect their legs to the right holesCiaran Hasletthttps://www.blogger.com/profile/14841971807120256954noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-8036754038534347762015-05-19T15:22:45.023+01:002015-05-19T15:22:45.023+01:00There is no way to get 330n ceramic caps in german...There is no way to get 330n ceramic caps in germany (at least at my known sources) ... are there any suitable alternatives?Anonymoushttps://www.blogger.com/profile/08554209179943476348noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-36789602321992836722014-01-02T16:29:41.506+00:002014-01-02T16:29:41.506+00:00Regarding the solder ground with battery and groun...Regarding the solder ground with battery and ground on output jacks.....this is a normal thing that I do all the time with all other builds. Did you do anything different here? or is it just the usual grounding scheme?Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-45789439221713938442013-12-11T23:56:57.103+00:002013-12-11T23:56:57.103+00:00thank you.
will try againthank you.<br />will try againDoron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87758845205552189742013-11-01T17:14:10.615+00:002013-11-01T17:14:10.615+00:00TL074 &TL072 works perfect.
The Layout is the ...TL074 &TL072 works perfect.<br />The Layout is the same as on the picture. Anonymoushttps://www.blogger.com/profile/11818582339083396998noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-9624431331171586622013-11-01T05:49:31.611+00:002013-11-01T05:49:31.611+00:00Thanks. Did you use the layout above as is? And wh...Thanks. Did you use the layout above as is? And which IC chips did you use?<br />Happy you got it working.Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64787404040984413162013-10-30T19:08:44.166+00:002013-10-30T19:08:44.166+00:00The quick check without case is done.
First came ...The quick check without case is done.<br /> First came a lot of hum.<br />The trick is to solder ground with battery - and ground on the output jack.<br />Then it works very well! I love it :-)<br />Anonymoushttps://www.blogger.com/profile/11818582339083396998noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-82234673387562874182013-10-30T14:19:47.891+00:002013-10-30T14:19:47.891+00:00Yes, soldering is ready and i check it tomorrow.
I...Yes, soldering is ready and i check it tomorrow.<br />I write here if it works Anonymoushttps://www.blogger.com/profile/11818582339083396998noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-21106027385197702062013-10-29T18:45:03.846+00:002013-10-29T18:45:03.846+00:00If you are successful with this project please sha...If you are successful with this project please share.Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-77303799078347892522013-10-29T15:34:33.384+00:002013-10-29T15:34:33.384+00:00Where is Pin 1 from the ic one and two? ^ ?Where is Pin 1 from the ic one and two? ^ ?Anonymoushttps://www.blogger.com/profile/11818582339083396998noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52479014085646027282013-08-03T12:30:52.809+01:002013-08-03T12:30:52.809+01:00I am almost about to give up on this project. I am almost about to give up on this project. Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-67890956373806636142013-08-03T12:29:49.210+01:002013-08-03T12:29:49.210+01:00Pin 10 is actually pin 12 in the above layout. Pin...Pin 10 is actually pin 12 in the above layout. Pins 8 and 6 are pins 2 and 13 in the above layout. Right? In that case you are correct. No output on IC1 although I tested 4 units. It is probably somewhere in the layout or in my build. What was the final version of the cut near pin 6 in IC1?Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-39084068137845905282013-08-03T11:12:20.951+01:002013-08-03T11:12:20.951+01:00Did Mark find any problem with the layout?Did Mark find any problem with the layout?Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-86053436918954894762013-06-28T14:40:59.284+01:002013-06-28T14:40:59.284+01:004 and 11 are ic's power and ground pins so tha...4 and 11 are ic's power and ground pins so that part sounds right.<br /><br />So what you are saying is that you get your guitar signal on pin 10 but no signal on pins 8 and 6?<br /><br />Anonymoushttps://www.blogger.com/profile/08843256153229514220noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-7402802261957584232013-06-28T14:22:52.299+01:002013-06-28T14:22:52.299+01:00Well I used the audio probe and checked and there ...Well I used the audio probe and checked and there is audio coming in but nothing comes out. Pin 4 shows it receives 8V and pin 11 goes to ground. I guess the quad op amp is busted. Ordered a few more.<br />Thanks. Wish me luck. Never had a busted op amp before.Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-25993566940319931082013-06-28T14:22:26.514+01:002013-06-28T14:22:26.514+01:00Well I used the audio probe and checked and there ...Well I used the audio probe and checked and there is audio coming in but nothing comes out. Pin 4 shows it receives 8V and pin 11 goes to ground. I guess the quad op amp is busted. Ordered a few more.<br />Thanks. Wish me luck. Never had a busted op amp before.Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13117608237937113652013-06-28T11:04:04.577+01:002013-06-28T11:04:04.577+01:00What ICs have you used? TL074 TL072 series or MC33...What ICs have you used? TL074 TL072 series or MC33 ?Doron Barnesshttps://www.blogger.com/profile/11002512823760367163noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-36236612096990881382013-06-27T20:24:45.096+01:002013-06-27T20:24:45.096+01:00
The best way to test an opamp is imho an audiopro...<br />The best way to test an opamp is imho an audioprobe. You can hear exactly what comes in and what comes out.Anonymoushttps://www.blogger.com/profile/08843256153229514220noreply@blogger.com