tag:blogger.com,1999:blog-6847048658257278783.post6377991524698557496..comments2024-03-28T18:53:30.726+00:00Comments on Guitar FX Layouts: Earthquaker Devices Acapulco GoldIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger193125tag:blogger.com,1999:blog-6847048658257278783.post-35774568187925088502024-03-05T22:13:58.707+00:002024-03-05T22:13:58.707+00:00I had trouble with the LM386's; whenever I wou...I had trouble with the LM386's; whenever I would palm mute and chug the volume would get real low. Threw in the JRC386D's and that went away :-)Mr.Hhttps://www.blogger.com/profile/08633156455402570612noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-38012568658682416732023-09-28T00:52:18.689+01:002023-09-28T00:52:18.689+01:00Remove the gain potentiometer and the static noise...Remove the gain potentiometer and the static noise and hum will stop.JChttps://www.blogger.com/profile/15780787690204020423noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73582456532484174712022-06-17T14:51:39.111+01:002022-06-17T14:51:39.111+01:00Well, the guy below said the N-4 solved his gating...Well, the guy below said the N-4 solved his gating problem. They were fuzzy and gated in my EQD, but I ended up using one plus an N-1. Basically, these things are a mystery to me so you just gotta try a few different types!Billhttps://www.blogger.com/profile/14479417870829704388noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-74064958517184855952022-06-17T09:45:35.005+01:002022-06-17T09:45:35.005+01:00Someone else (in some below comment) told that N-4...Someone else (in some below comment) told that N-4 was gated, and N-1 solved the problem.<br />I really don't know it, but I think the LM386 are sensible to something. On my breadboard every time I tried one it sounded wrong: gated, harsh... Once on stripboard it worked fine.Elijah-Baleyhttps://www.blogger.com/profile/16374916649117645180noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3498673524615717732022-06-17T07:05:41.151+01:002022-06-17T07:05:41.151+01:00I've gotta say, the LM386's in these make ...I've gotta say, the LM386's in these make a huge difference. I have an EQD Acapulco Gold that came with two socketed JRCLM386's. I swapped in two N-4's and its way sputtery like a gated fuzz! Not what I wanted though so I tried one of the N-4's and one N-1 that I had. Sputter/gate gone and it seems to me a little warmer/less harsh. So my point is, it may be worth thrying different variations of this chip as they really sound/react differently from each other!Billhttps://www.blogger.com/profile/14479417870829704388noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59472259794071154132022-06-01T14:52:42.523+01:002022-06-01T14:52:42.523+01:00Thanks Elijah! I put a cap across lug 1/3 on my EQ...Thanks Elijah! I put a cap across lug 1/3 on my EQD Acapulco Gold as it was way too bright with my strat single coils and Musicman RD50. I settled on a .33uf cap and it really made the pedal perfect with my bright rig. So Cheers!!! 🍻Billhttps://www.blogger.com/profile/14479417870829704388noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11994562836440140042022-05-21T11:40:54.826+01:002022-05-21T11:40:54.826+01:00Hi. I've built the version with the gain pot a...Hi. I've built the version with the gain pot and I find the pedal to be very noisy. There's quite a lot of static noise if I turn the pots up beyond1/3 as well as a hum I can't get rid of (the kind of hum you get when the end of the guitar cable is not connected to the guitar). I reckon the static is a feature of the pedal but the hum does bother me. It's only there with single coil pickups (which is sort of expectable, but not to that amount). I've checked the ground connections and the grounding of all the parts and the casing. Any idea?Sylvie Sylvanhttps://www.blogger.com/profile/04746064091673847723noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-40700629229751588952022-04-04T11:23:13.031+01:002022-04-04T11:23:13.031+01:00I just finished building this one and i can say it...I just finished building this one and i can say it s awesome!Verified. <br />Tnx. Jun fr PhilippinesJun dhttps://www.blogger.com/profile/07905810487041216546noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15667560449038121902022-03-26T13:33:04.682+00:002022-03-26T13:33:04.682+00:00Yes i have same problem, high hum n noiseYes i have same problem, high hum n noiseHendri thttps://www.blogger.com/profile/17699840519105051742noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-22575188652069689802021-07-30T04:26:07.322+01:002021-07-30T04:26:07.322+01:00Heres my take on this pedal. Cheers for the great ...Heres my take on this pedal. Cheers for the great layouts:<br />https://www.youtube.com/watch?v=wFYKqfbIoXQUnholy Audiohttps://www.blogger.com/profile/08493522275087770676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75821522601335366282021-06-26T19:15:07.244+01:002021-06-26T19:15:07.244+01:00Sounds great with no “squealing” with lm386-n1 on ...Sounds great with no “squealing” with lm386-n1 on top and lm386-n4 on bottom. XxGLOVEZxXhttps://www.blogger.com/profile/08002642153966834218noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84230258793060856512021-03-07T15:45:37.870+00:002021-03-07T15:45:37.870+00:00Does anyone know what this circuit is based on. Wa...Does anyone know what this circuit is based on. Was it the Bravo's Audio Tufnell ?Petehttps://www.blogger.com/profile/15646685728993255120noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53189318093735941202021-01-24T10:05:17.594+00:002021-01-24T10:05:17.594+00:00Your wiring is correct, technically, but if it doe...Your wiring is correct, technically, but if it doesn't effective in this circuit you can try:<br />- input jack to the lug 3<br />- input of the layout to the lug 2,<br />- lug 1 to the ground or to a small resistor and then the ground ,for a low gain setting. The resistro could be 47k or smaller, you nedd to try the value you like.<br /><br />You can find the resistor value you like soldering just the pot and set it at the lowest gain setting you like, then measure the value on your pot and use the resistor closer to that value.<br /><br />This wiring will give you more or less the same effect you get with the volume of your guitar, usually the LM386 has a good respond doing this.Elijah-Baleyhttps://www.blogger.com/profile/16374916649117645180noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-72498471279145824522021-01-23T09:01:52.074+00:002021-01-23T09:01:52.074+00:00How you wired it? I put 1M pot and it doesnt work ...How you wired it? I put 1M pot and it doesnt work as much as I was thinking it should...I soldered jack to pin 3 on pot and pin 1 and 2 to input on layout...Dominhttps://www.blogger.com/profile/02855069987687210682noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-8013409041703976402020-11-08T22:12:44.508+00:002020-11-08T22:12:44.508+00:00Weird one.
Made one with the pre-gain pot, used a ...Weird one.<br />Made one with the pre-gain pot, used a 500k as all I had, worked great, insanely bassy. <br />Realised I'd used a 4.7uf instead of the 4n7, figured that's making it bassy. <br />So I made another, had a 1m pot this time, and put the 4.7uf and the 4n7 on a switch. But now, the 4.7 renders the effect clean, the 4n7 causes squeal / oscillation. You can dial down the pots to deal with it but still.<br />Couldn't find the problem so made another: same problem.<br />In the end I used a 0.47uf and a 0.047uf on the switch, the 0.047 squeals but not as much, so bunged a resistor after the pre-gain pot to reduce input gain to below squeal levels. Works fine for me, but other guitars and other pickup combinations will undoubtedly squeal it at full throttle. But is awesome anyway.<br />Still don't understand the problem; would love it to go away. The original 4.7uf build is way bassier than the 0.47uf on the last build, but every build since, a 4.7uf cleans out the effect and a 4n7 squeals to high heaven. <br />I'd like to try the 4n7 you need the original build but I ain't gonna touch it! Coz it's sweethorselover fathttps://www.blogger.com/profile/00921517155174815408noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-33375603323038026062020-10-13T11:21:17.087+01:002020-10-13T11:21:17.087+01:00So is there one or two switches, sorry I am a litt...So is there one or two switches, sorry I am a little lost in this one!trevhttps://www.blogger.com/profile/06825124201426994426noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-51420301953237842302020-10-08T23:31:55.493+01:002020-10-08T23:31:55.493+01:00How did you wire in the tone control?How did you wire in the tone control?trevhttps://www.blogger.com/profile/06825124201426994426noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-30875211270977087842020-08-25T04:04:13.797+01:002020-08-25T04:04:13.797+01:00I know this is old, but CLR is short for Current L...I know this is old, but CLR is short for Current Limiting Resistor. The lower the value the brighter the LED will be. Start with 2.2k maybe and tweak from there. RedSolutionhttps://www.blogger.com/profile/12270082064495285413noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-88799068382111409362020-06-03T12:11:25.709+01:002020-06-03T12:11:25.709+01:00Hey guys, this page has been my bible for the last...Hey guys, this page has been my bible for the last 18 months. made a bunch of stuff. Dwarfcraft noise thing is the greatest schematic ever printed. <br /><br />I need help on this one, its tricking my brain. The CLR, is that just a LED for like 'hey im powered up yo!' or is it a LED thats being used like a diode? <br />if its just a power on LED I can just leave it out yes? if its a Diode like LED do i need a CLR. I looked at the links that were sent to the similar questions to mine. but i still cant guess it. Im gonna start it tomorrow. <br /><br />All involved with this website. FUCCCCC ! I cant ever thank you enough. This page helped me get healthy. Andy Woundshttps://www.blogger.com/profile/01467082419296576057noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-63852981059890862312020-06-02T22:49:53.472+01:002020-06-02T22:49:53.472+01:00Cheers Don, just so this reply! Ended up using LM ...Cheers Don, just so this reply! Ended up using LM 386-3's. Went through a few to find the most 'noiseless' pair.<br />Bradshttps://www.blogger.com/profile/02224133192637101176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80277270989040446462020-05-31T16:30:20.623+01:002020-05-31T16:30:20.623+01:00The layouts are correct. They are really simple an...The layouts are correct. They are really simple and they've been verified long ago. D1 is a protection diode and there's no 1M resistor going to pin 3. There is just one at the input.Alexhttps://www.blogger.com/profile/02431893143306628176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-18210710927052170662020-05-31T07:34:52.546+01:002020-05-31T07:34:52.546+01:00I found that there are some mistakes on the layout...I found that there are some mistakes on the layout, the D1 to pin 6 of the IC, one side should be to ground,and the 1M resistor to pin 3 of the 386, also one side should be to ground<br />Fatkeunghttps://www.blogger.com/profile/08927632598894261212noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-83939332426219807402020-05-22T04:59:08.568+01:002020-05-22T04:59:08.568+01:00I built the two knob version LM386L tonight. Of th...I built the two knob version LM386L tonight. Of the 4 I had two had awful noise like I'm not used to hearing. The two decent ones are still extremely noisy at higher gain settings, but the circuit appears to function properly otherwise.Don Bakerhttps://www.blogger.com/profile/01357771800989868424noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47227401080587955392020-05-12T18:15:54.106+01:002020-05-12T18:15:54.106+01:00Hi,
I take it LM386L isn't compatible with th...Hi,<br /><br />I take it LM386L isn't compatible with this build?Bradshttps://www.blogger.com/profile/02224133192637101176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-78324367178641394852020-02-10T12:12:55.763+00:002020-02-10T12:12:55.763+00:00I've just upgraded to N-4s in mine which has e...I've just upgraded to N-4s in mine which has eliminated the annoying gating effect the N-1s gave me and a few others on the thread. I'm going to leave it the way it is now that that glitch is resolved.<br />cringehttps://www.blogger.com/profile/04531687385764665589noreply@blogger.com