tag:blogger.com,1999:blog-6847048658257278783.post8547750376547376403..comments2024-03-27T15:26:01.893+00:00Comments on Guitar FX Layouts: Cornish G2IvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger99125tag:blogger.com,1999:blog-6847048658257278783.post-33878413751414886812021-08-02T22:04:08.146+01:002021-08-02T22:04:08.146+01:00Would it be possible to jave a tagboard version?Would it be possible to jave a tagboard version?jeremyhttps://www.blogger.com/profile/11504921805341434256noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-34051356106659655392021-07-19T09:54:25.331+01:002021-07-19T09:54:25.331+01:00Hello and good luck everyone. I need your help de...Hello and good luck everyone. I need your help dear pedal builders. I soldered the G-2, but there is no sound. At the maximum values of the gain and volume potentiometers, the sound appears (in the form of a crackle, similar to a dirty fuzz) for 0.5 - 1 sec and disappears. I checked the board for errors - everything is correct. I checked the signal flow with an audio probe and found out the following. There is a signal at the base of the transistor of the last stage. But there is no signal on the collector. I tried to short-circuit a capacitor (22 mF) connected to the emitter of this transistor and through a resistor to ground, the sound appears. I replaced this capacitor, but the problem persists. Can you please tell me what could be the problem and what does this capacitor do? I use BC549C in my circuit. Maybe someone has any ideas, I would be very grateful for any help or advice.gs1965https://www.blogger.com/profile/11808403690701708302noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53259744508144098922019-04-03T14:19:10.897+01:002019-04-03T14:19:10.897+01:00Finished my second one. For those who are wonderin...Finished my second one. For those who are wondering, this particular one as stated above, being with the Germanium diodes , DOES have a much lower volume, so unity is about 2 O clock on gain + volume. It is normal! The first one built was identical. I've built this one buffered also<br /><br />Thanks again guys!<br /><br />https://hgecontraptions.blogspot.com/2019/04/pete-cornish-g2-hge-contraptions-clone.htmlHGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-60429977918457960022019-03-31T15:43:19.205+01:002019-03-31T15:43:19.205+01:00This comment has been removed by the author.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-62687735812994022752019-03-18T08:12:19.405+00:002019-03-18T08:12:19.405+00:00Something is wrong with your layout. It should wor...Something is wrong with your layout. It should work perfectly.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73225780306071133112019-01-14T08:56:45.310+00:002019-01-14T08:56:45.310+00:00Hi everyone. I tried this build last night and i&#...Hi everyone. I tried this build last night and i'm running into a real weird problem. I've troubleshot just about everything but basically, I get a bypass signal but no sound when the pedal is on. <br /><br />While the pedal is on but isn't making any sound, I can still hear the controls doing stuff to the hiss that my amp is making (volume control works, tone does a sweep, the sustian control adds more noise when brought in). but still no fuzz. <br /><br />I tried probing the problem tonight and starting from the input, I was able to get a clean sound (not fuzzy) as far as the row that the 1st transistors collector is on where I dont get any sound and i cant get sound further on the circuit from there. I assumed the 100u electro cap that is on that same row could be the problem so I replaced that but still have no fuzz or any sound at all. My build uses the buffer circuit and I know thats not the problem. I also have mine built exactly to the diagram noting the very slight change in placement of one of the 39K resistors that differ between the diagrams with the buffer in play and without. <br /><br />In saying all that, does anyone have any idea where I go from here in probing the circuit and figuring out what component is at fault? I've checked my wiring, cuts, polarity, placement, and jumpers and transistor pinout and im just about clueless. thanks for any help in advance. Anonymoushttps://www.blogger.com/profile/17896484272430340986noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-78137436861806057602018-06-07T00:16:26.538+01:002018-06-07T00:16:26.538+01:00Just to clarify my build is as per schematics here...Just to clarify my build is as per schematics here that are different to original Dirk tracing which is: <br />no buffer - input capacitor of 220n is replaced with 100n<br />10n capacitor between base and emitter on Q1 is replaced with 1n<br />680R emitter resistor on Q2 is replaced with 100R<br />15K collector resistor on Q2 is replaced with 18K<br />Here is some readings:<br />transistor voltages<br />Q1 (E=2.23V, B=7.7V, C=8.2V) <br />Q2 (E=0.025V, B=2.7V, C=3.2V) <br />Q3 (E=0.2V, B=3.1V, C=3.7V)<br />Q4 (E=0.025V, B=3.2V, C=3.7V) <br />Q5 (E<0.001V, B=3.8V, C=4.4V)<br />battery is showing 9.2Vstojanoshttps://www.blogger.com/profile/15634462724424089874noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-82525096272522191342018-06-06T21:43:52.883+01:002018-06-06T21:43:52.883+01:00I have build this using 1N60 diodes with forward v...I have build this using 1N60 diodes with forward voltage of 0.38V. Although I have used 100/18K resistor combination instead of original 680/15K the volume is too low, tone is muddy and almost no breaking. Based on comments so far I expected this combination to at least produce decent volume. Should I experiment with different diodes or something is wrong with my layout? stojanoshttps://www.blogger.com/profile/15634462724424089874noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-60239652389479446662018-02-11T19:41:31.295+00:002018-02-11T19:41:31.295+00:00it has a lower output volume because germanium dio...it has a lower output volume because germanium diodes have a lower forward voltage than standard silicon 1N4148 diodes.johnkhttps://www.blogger.com/profile/00643996045674470081noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-41134356518714553672018-02-11T18:15:54.101+00:002018-02-11T18:15:54.101+00:00I also build this Version
http://johnkvintageguit...I also build this Version <br />http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/Cornish/CornishG2VERIFIED.png<br />with 1n34 diodes, but why is the G2 so quiet compared to a big muff?Jo ehhttps://www.blogger.com/profile/09068846714135540311noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61242065297823561482018-01-15T14:05:33.348+00:002018-01-15T14:05:33.348+00:00Just finished mine, it's great! (Buffered vers...Just finished mine, it's great! (Buffered version)<br />Thanks guys!<br /><br />https://hgecontraptions.blogspot.ro/2018/01/cornish-g-2-clone.htmlHGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-29025132212030619692018-01-11T16:40:34.857+00:002018-01-11T16:40:34.857+00:00Hello folks, can I wire up the buffer in series an...Hello folks, can I wire up the buffer in series and box the effect normal wiring with good affect? Thnx!Blackwinghttps://www.blogger.com/profile/16864575046719143800noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80994883007207055692017-03-20T10:12:35.057+00:002017-03-20T10:12:35.057+00:00Guys wich one is the real deal? Top pic or bot pic...Guys wich one is the real deal? Top pic or bot pic?Anonymoushttps://www.blogger.com/profile/11462956676746766387noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-68791314573915534812017-03-05T19:36:48.194+00:002017-03-05T19:36:48.194+00:00it clearly says volume 2 to outputit clearly says volume 2 to outputjohnkhttps://www.blogger.com/profile/00643996045674470081noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-18925741128131221532017-03-05T19:29:21.412+00:002017-03-05T19:29:21.412+00:00Can anyone help please, why is there no circuit ou...Can anyone help please, why is there no circuit output marked on the diagram?Anonymoushttps://www.blogger.com/profile/16571914376987553685noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15360172363852224902016-11-17T16:24:28.300+00:002016-11-17T16:24:28.300+00:00Hello,
First, I apologize for my English.
I hav...Hello,<br /><br />First, I apologize for my English.<br /><br /><br />I have built this version:<br /><br />http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/Cornish/CornishG2VERIFIED.png<br /><br />With 1N capacitor left low as indicated by JhonK.<br /><br />I have NOT built Buffer added because I already have a buffer pedal on my pedalboard before the pedal chain.<br /><br />I have left the resistors of 680R and 15K. I hear it right now.<br /><br />What result will I get if I change to 100R and 18K ???? I see that this topic is being talked about here, but I do not know what this change is for.<br /><br /><br />Diodes:<br /><br />I have used in the first ethane 2 germanium 1N270 (I have not found difference with 1N34A !!!!!!)<br /><br />And in the second one silicon 1N914<br /><br />The possibility of putting the 4 diodes 914s I did not like,<br />With the 4 diodes 914s I have sounded too fuzzy, undefined and like horses with no control.<br /><br />... for those sounds I already have other pedals.<br />With this combination of 1n270 and 914's the sound is balanced and not very salvage.<br /><br />That if, this pedal is not a fuzz with long sustain, is "sustain normal" quite controlled.<br /><br />Some photos of the final project:<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0307_zps8uwbvmbk.jpg.html<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0302_zpslsdxmt1e.jpg.html?sort=3&o=7<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0300_zpsdn2affim.jpg.html?sort=3&o=0<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0301_zpstsjzr7x2.jpg.html?sort=3&o=1<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0304_zpsh5e8v2dc.jpg.html?sort=3&o=4<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0303_zpswje46nie.jpg.html?sort=3&o=3<br /><br />http://s1033.photobucket.com/user/josepqr/media/IMG_0305_zps89t4fl6n.jpg.html?sort=3&o=5<br />josephttps://www.blogger.com/profile/08777691294010007726noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80453721141718259112016-11-17T16:21:02.717+00:002016-11-17T16:21:02.717+00:00This comment has been removed by the author.josephttps://www.blogger.com/profile/08777691294010007726noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13379282083111939442016-11-10T13:59:45.800+00:002016-11-10T13:59:45.800+00:00Hey guys, I solved the darkness issue last night. ...Hey guys, I solved the darkness issue last night. Going by the BigMuffPage FSB/ Madbean schematic trace, replace C10 (1n) with a 100pF and the circuit comes to life! It sounds spot-on the demos with germanium diodes in the .33fV range (measured by Atlas).<br /><br />Here's the schematic: http://www.bigmuffpage.com/images/schematics/Big_Muff_Overdrive_G2_Schematic.jpgjetencatehttps://www.blogger.com/profile/03377499370160626596noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-65819753550119836852016-03-04T10:03:49.689+00:002016-03-04T10:03:49.689+00:00hello i have build my hown G2 with your shematic b...hello i have build my hown G2 with your shematic but when i'd try there is any sound through the pedal :( i dont know why please anybody have an idea? artkohttps://www.blogger.com/profile/15570422546535368624noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-46899315063797895852015-11-25T07:54:53.615+00:002015-11-25T07:54:53.615+00:00Hi
I bought the kit BitsBox. My realization has un...Hi<br />I bought the kit BitsBox. My realization has unfortunately too little distortion.<br />Please, someone has found a solution to the problem?<br />Thank'sAnonymoushttps://www.blogger.com/profile/00035332697121061511noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44525384366604754972015-11-23T15:29:36.346+00:002015-11-23T15:29:36.346+00:00Thank you ashkan.
I thought that someone could sho...Thank you ashkan.<br />I thought that someone could show me, with a drawing, the complete wiring.<br />Thank you all anywaytonyhttps://www.blogger.com/profile/11380144612808983371noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1237903824997684702015-11-18T05:51:18.689+00:002015-11-18T05:51:18.689+00:00hi' I'm a newbie myself. I think you are b...hi' I'm a newbie myself. I think you are better build the standalone buffer layout (IvIark has posted its link above) and then include it as a dougther board. go to offboard section of the site and use the switchable boost wiring diagram.good luckashkanhttps://www.blogger.com/profile/14949196158453629658noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-55956438690349562802015-11-17T21:36:17.869+00:002015-11-17T21:36:17.869+00:00Is There anybody there?Is There anybody there?tonyhttps://www.blogger.com/profile/11380144612808983371noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-30135172215055757572015-11-13T16:05:43.016+00:002015-11-13T16:05:43.016+00:00Can anyone help me? I'm a newbie and I cannot ...Can anyone help me? I'm a newbie and I cannot go on. Please, Can you send me complete wiring of G2 with Buffer? Thanks a lot.tonyhttps://www.blogger.com/profile/11380144612808983371noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1391337366205224032015-10-06T19:18:12.797+01:002015-10-06T19:18:12.797+01:00Would adding the input buffer help boost the overa...Would adding the input buffer help boost the overall volume level? And what's the point of the D5 on the ground?<br />Thanks!Anonymousnoreply@blogger.com