tag:blogger.com,1999:blog-6847048658257278783.post5516975090954379921..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Human Gear AnimatoIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger31125tag:blogger.com,1999:blog-6847048658257278783.post-17553309795440579442019-01-10T11:37:22.540+00:002019-01-10T11:37:22.540+00:00Hi,
after few experiments, I've find that yo...Hi, <br /><br />after few experiments, I've find that you can play<br />with Q5 PNP transistor, I mean you can put it in revrse (emmiter and collector. With Q5 in reverse you will have more gain and a lot more mediums (less spurty) good for guitars.<br />Also Q4 and Q5 have to be with not so much gain as it's a Sziklaipair so gain multiply.Anonymoushttps://www.blogger.com/profile/15075243732572321717noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50452579640830610162018-02-14T08:31:21.702+00:002018-02-14T08:31:21.702+00:00thanks, thats a good point to consider. any though...thanks, thats a good point to consider. any thoughts on using a higher value than whats on the layout or will it not matter too much?Anonymoushttps://www.blogger.com/profile/08820359911976306781noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15234089187049291582018-02-13T16:23:08.848+00:002018-02-13T16:23:08.848+00:00Hi
With 100k trimmer, it will be more hard to pre...Hi<br /><br />With 100k trimmer, it will be more hard to precisely fine the sweet spot of the transistor.Anonymoushttps://www.blogger.com/profile/15075243732572321717noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-46388900024636670782018-02-12T13:10:27.855+00:002018-02-12T13:10:27.855+00:00hi all,
when you use trimmers is it important to ...hi all,<br /><br />when you use trimmers is it important to use the correct value given in the layout? if i used a 5k or 20k, hell even a 100k trimmer, will it affect the resistance elsewhere even if it is adjusted to supply the correct voltage for the transistor?Anonymoushttps://www.blogger.com/profile/08820359911976306781noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59069240214637921992018-01-14T19:55:58.546+00:002018-01-14T19:55:58.546+00:00strange question, has any one ever picked up any r...strange question, has any one ever picked up any radio audio on this pedal. Anonymoushttps://www.blogger.com/profile/16547429315856275382noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-19483660787975803292016-12-12T22:31:03.239+00:002016-12-12T22:31:03.239+00:00hi
I am trying to build this pedal, as far as im ...hi<br /><br />I am trying to build this pedal, as far as im aware i have built this correct but im getting no audio output, after testing a lot of resistors show the correct resistance but no audio comes out the other end, what si the best way to find out where teh issue liesBrother Chris Productionshttps://www.blogger.com/profile/13504113924592770861noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-7996085250727953402016-12-09T18:39:29.374+00:002016-12-09T18:39:29.374+00:00hi there guys! i have a problem here.build it and ...hi there guys! i have a problem here.build it and i'm getting something like hum noise that is amplified with the gain pot.other than that it works. i'm using ac128 and ac176, and used the blend circuit Alex suggested. does anyone had the same problem? where should i start to fix this? thanks<br />ξεναγός νεκρόποληςhttps://www.blogger.com/profile/13463939372683232133noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-24491024226025756272016-10-30T08:05:49.399+00:002016-10-30T08:05:49.399+00:00Hi guys. Could someone explain what the CLR at th...Hi guys. Could someone explain what the CLR at the LED+ is please . CheersAnonymoushttps://www.blogger.com/profile/15296583395815229536noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15301355656288577202016-07-03T06:25:05.335+01:002016-07-03T06:25:05.335+01:00Never mind...dumb question.Never mind...dumb question.Gregg Peppelhttps://www.blogger.com/profile/01277961006534648751noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3155962595722066282016-07-03T06:24:29.784+01:002016-07-03T06:24:29.784+01:00How would I wire this without the switch?How would I wire this without the switch?Gregg Peppelhttps://www.blogger.com/profile/01277961006534648751noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-91410923116615528502016-06-09T12:27:33.344+01:002016-06-09T12:27:33.344+01:001 4
2 5
3 6
Sw 1 & 4 are connected together.
...1 4<br />2 5<br />3 6<br /><br />Sw 1 & 4 are connected together.<br />Sw 3 & 6 are not connected at all.Alexhttps://www.blogger.com/profile/02431893143306628176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-43862546166760154902016-06-09T09:36:33.976+01:002016-06-09T09:36:33.976+01:00I've used the Split 'n' Blend circuit:...I've used the Split 'n' Blend circuit:<br />http://tagboardeffects.blogspot.fr/2012/02/split-n-blend.htmlAlexhttps://www.blogger.com/profile/02431893143306628176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-17346752593973603742016-06-09T02:22:08.414+01:002016-06-09T02:22:08.414+01:00Which blend do you guys recommend? Thanks!Which blend do you guys recommend? Thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44979699509121955552016-05-15T08:28:51.329+01:002016-05-15T08:28:51.329+01:00I built this. It sounds great. Just wondering wh...I built this. It sounds great. Just wondering where I should set the trimpot?Gregg Peppelhttps://www.blogger.com/profile/01277961006534648751noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-51230598806179045402016-05-03T23:10:51.512+01:002016-05-03T23:10:51.512+01:00Had a good build using AC128/AC176, identical prob...Had a good build using AC128/AC176, identical problem to Lucas M though, had to flip NTE102 to get it to work. Very confusing... my multimeter agreed that I had the pinouts correct, but I still had to flip NTE102! I'm not good enough with electronics to work out if my multimeter was giving me a reverse pinout, but I did try every pin combination for both of them, getting the highest gain reading in the "correct" pinout. Tried a fair few pin combinations on the board too, all sounded like crap except the NTE 102 reversed, and NTE103 with correct polarity. Most confusing!<br /><br />Overall not bad, but I think I'll build a second with far more exacting transistors. I find mine doesn't have the same level of gain as I've seen from other builds (not that it needs that much more, but useful to have for Muse type tones), even with the trim pot maxed out. I used 2N3904 instead of C2240 too, so I'll leave nothing to chance next time! Absolutely worth it for the Muse fan, nails Hyper Music with a Palmer Y-box giving a DI to work with :DAnonymoushttps://www.blogger.com/profile/16565433720769782458noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15490131978704214322016-04-09T23:30:12.650+01:002016-04-09T23:30:12.650+01:00I think I may have solved my issue, I was using NT...I think I may have solved my issue, I was using NTE102A and NTE103, looks like 102A drives less gain. <br /><br />I find that to get mine working even with low volumes I have to change the orientation of 102 like Lucus above, I'm pretty new to this so may be making a/some silly mistakes, any advice would really be appreciated.<br /><br />ThxLori Newbyhttps://www.blogger.com/profile/08025150165811432299noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-19846309135159418042016-04-09T02:06:06.007+01:002016-04-09T02:06:06.007+01:00Hey all built this one and having an issue with th...Hey all built this one and having an issue with the volume/gain. The volume is very low and when I reduce the drive below about 3/4 I loose all volume. Since the gain is a blend I'm assuming I'm not getting the clean part of the signal. <br /><br />Also not sure what to do with positions 3,6 on the switch (left them empty), switch doesn't seem to be doing anything, not sure if the two issues are related.<br /><br />Any help greatly appreciated.Lori Newbyhttps://www.blogger.com/profile/08025150165811432299noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26431859999726429362016-03-27T15:01:07.887+01:002016-03-27T15:01:07.887+01:00Hi,
I wonder how to settle the 10K trimm pot.
How ...Hi,<br />I wonder how to settle the 10K trimm pot.<br />How do you do that ? Thank you Anonymoushttps://www.blogger.com/profile/09990530974425054871noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13596347295223644862016-03-17T17:36:06.147+00:002016-03-17T17:36:06.147+00:00Hi Lucas!
I'm glad you like it!
I love it too ...Hi Lucas!<br />I'm glad you like it!<br />I love it too on bass (with the added blend).<br />I don't remember what I did with my Tone pot when I've built it.<br />It is supposed to get darker CCW.<br />The NTE102 collector connects to the NTE103 emitter to form what is called a Sziklai pair.<br />You can see it on the original schematic:<br />https://drive.google.com/file/d/0B7Lx-E88bAtET1ViT3J2UEFpYUk/viewAlexhttps://www.blogger.com/profile/02431893143306628176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52777535769906992672016-03-17T17:19:23.465+00:002016-03-17T17:19:23.465+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/16694211763818534661noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14277340173864908402016-03-17T09:00:22.361+00:002016-03-17T09:00:22.361+00:00Built this using an AC128/AC176 pair and I can con...Built this using an AC128/AC176 pair and I can confirm it sounds really great on bass! <br />Blending with the original signal is definitely a must.<br /><br />I still consider myself a beginner in pedal building so maybe I did something wrong but :<br />1) I had to swap tone 1 and tone 3 to have it behaving like an usual tone pot (meaning CW -> more treble, CCW -> less treble)<br />2) I had to reverse the position of the NTE102 transistor (so the emitter points in the same direct as the NTE103)<br />Can anyone who built this confirm? <br /><br />Now I just need to figure out what I am going to build with all those 128/176 pairs I ordered from different sellers on eBay... <br />Thank you so much for this layout!Lucas Mhttps://www.blogger.com/profile/10666478203623199111noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-31282006904408483092016-02-19T09:54:40.211+00:002016-02-19T09:54:40.211+00:00Regarding the transistors, I tried a few germanium...Regarding the transistors, I tried a few germanium combinations for the input pair and AC128/AC176 were the best by far. They're plentiful on eBay thanks to the fuzz factory and the like (though avoid "aberdeencd", totally useless). I tried low gain silicons and they were just awful, really dull and farty. The 128/176 pair gives a really grindy, sharp attack on bass which is just lovely. <br /><br />As for the 2240s - I can't believe I'm about to type this, but I noticed a marked improvement in tone over the 5088s I had in before. Normally I'm a steadfast member of the "all equivalent spec transistors are created equal" anti-mojo crowd, but it just seemed livelier with the 2240s. I did get a really good batch that all had pretty much the same hfe, which may be the reason, but they're not massively pricy (I think I got 10 for £5), so I'd recommend giving them a try.Bobbass4khttps://www.blogger.com/profile/12443796219545988732noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3996288616028209442016-02-05T19:25:06.021+00:002016-02-05T19:25:06.021+00:00Those are quite scarce ad even more here in europe...Those are quite scarce ad even more here in europe. One could go with any germanium NPN/PNP pair. AC128/AC127 should be a nice sub.... Perhaps a low gain Si could do the trick too. Something like 2N2369 paired with 2N2907. That won't sound like the original (or AC128/AC127 subs), but it'll work.<br /><br />As for 2240, that's just pretty basic NPN small signal transistor with slightly higher max voltage rating. (http://alltransistors.com/transistor.php?transistor=12934)<br />As it has forward current transfer ratio (hFE gain) of 200-700, the suitable subs would be 2N2222(A), 2N3904, 2N5088, BC239, BC550 etc. Basically any NPN Si. Voltage ratings do not matter much here as the circuit is run with 9 volts. Sockets and experiment what sounds the best for you?<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-70329284460393292332016-02-05T14:59:36.006+00:002016-02-05T14:59:36.006+00:00It looks like you can get the NTE102 and 103 from ...It looks like you can get the NTE102 and 103 from Allied Electronics, but they are expensive. I had no better success finding the AC128 substitution suggested above.Pyrewebhttps://www.blogger.com/profile/03595710355426580133noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-17374217613667027362015-12-21T22:14:47.702+00:002015-12-21T22:14:47.702+00:00I'm having trouble finding the transistors :( ...I'm having trouble finding the transistors :( any help with substitutions would be greatly appreciated Anonymoushttps://www.blogger.com/profile/14809090368289049771noreply@blogger.com