tag:blogger.com,1999:blog-6847048658257278783.post7964851391387175611..comments2024-03-27T15:26:01.893+00:00Comments on Guitar FX Layouts: AMT B1 LegendIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger75125tag:blogger.com,1999:blog-6847048658257278783.post-50993524910197805182020-02-28T08:39:59.620+00:002020-02-28T08:39:59.620+00:00I see now that there is no cab sim in these boards...I see now that there is no cab sim in these boards. So cab sim in AMT S1 should work with this? Has anyone build this with S1 cab sim and how is the sound compared with this in direct recording? https://www.youtube.com/watch?v=w-l5V-t6QeoMas_hhttps://www.blogger.com/profile/01460228207121757876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-75031168653199253682020-02-24T16:31:54.093+00:002020-02-24T16:31:54.093+00:00Hi, reading comments section gets me confused. If ...Hi, reading comments section gets me confused. If i build mainboard and daughterboard as in those layouts the mainboards volume 2 output is what i use with amp and daughterboard output is second output with cabsim?Mas_hhttps://www.blogger.com/profile/01460228207121757876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-18368768083415579582020-01-12T18:17:02.826+00:002020-01-12T18:17:02.826+00:00Hi no english but i need b2 only clean with eq on ...Hi no english but i need b2 only clean with eq on B2 clean only volumen no eq schematic or video mod ATM clean nice mod legend 3 = legend 2 + clean eq <br />Anonymoushttps://www.blogger.com/profile/03928169090018462570noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-25665859468653365632017-02-28T18:50:24.925+00:002017-02-28T18:50:24.925+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/02978471660889504927noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-62531760254483048902017-02-28T18:50:05.120+00:002017-02-28T18:50:05.120+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/02978471660889504927noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-33623748360423980272016-04-27T06:31:33.938+01:002016-04-27T06:31:33.938+01:00All of those are redundant power filter caps. Mean...All of those are redundant power filter caps. Meaning that single 1000µ cap does the same thing. And since those are all power filters, the impact they have on the circuit and its tone is zero.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61678428879458569912016-04-26T18:13:45.884+01:002016-04-26T18:13:45.884+01:00All veros from this site (included johnk vero) doe...All veros from this site (included johnk vero) doesnt match schematic (this one from site-> http://i76.photobucket.com/albums/j6/IvIark_2006/Layouts/Schematics/AMTB1-corrected.png). In those veros are missed two 100uF, one 470uF, one 100nF and one resistor 33R. I believe B1 without those caps and resistor can work very well, but I was thinking how it will sound if I will build it with all the parts from schematic. Will see :)Anonymoushttps://www.blogger.com/profile/12005948432392110784noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-76131875532106171112016-03-07T08:46:50.374+00:002016-03-07T08:46:50.374+00:00How can i find more of johnk diy effects vero layo...How can i find more of johnk diy effects vero layouts?glasspak73https://www.blogger.com/profile/11792030395861982394noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3666189937101678222016-03-07T08:44:18.790+00:002016-03-07T08:44:18.790+00:00How can i find more of johnk diy effects vero layo...How can i find more of johnk diy effects vero layouts?glasspak73https://www.blogger.com/profile/11792030395861982394noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-56541027192026711362016-02-06T17:20:45.088+00:002016-02-06T17:20:45.088+00:00I built this one this afternoon using Johnk's ...I built this one this afternoon using Johnk's layout http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/AMT/B1_Legend_Vero.png<br />It sounds absolutely hudge !<br />Tons of gain, very effective eq controls, bass stay tight on palm mutes. I'm very happy, a keeper.<br />I have only one remark, maybe too much highs, I have to roll the pot almost all the way back to get the sound I like, so which capacitor(s) should I tweak correct this ?<br />Thank you !Alltrax74https://www.blogger.com/profile/13079701857494829507noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-35418095792384290942015-03-11T01:57:59.123+00:002015-03-11T01:57:59.123+00:00And is it sounding exactly like the video?And is it sounding exactly like the video?SevenZeroNinner ©®https://www.blogger.com/profile/15512852118214914261noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-5490879672269865182015-03-08T22:43:58.293+00:002015-03-08T22:43:58.293+00:00I just built the top circuit without any daughter ...I just built the top circuit without any daughter board for a corrected schematic. It sounds great.motterpaulhttps://www.blogger.com/profile/15536330842070250774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-6424380179465301452015-03-07T00:57:39.569+00:002015-03-07T00:57:39.569+00:00And where is the final, complete and revised layou...And where is the final, complete and revised layout? Thanks!SevenZeroNinner ©®https://www.blogger.com/profile/15512852118214914261noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-56213297707363097622014-11-22T16:25:48.098+00:002014-11-22T16:25:48.098+00:00Final Update on the Legend B1 - what an amazing dr...Final Update on the Legend B1 - what an amazing drive! This pedal is the best one I have built form this site yet, and that includes the Wampler Plexi and the Timmy. With the versatility of these tone controls you could use this pedal to get almost any overdrive tone you want.<br /><br />I mentioned before a couple of things - an oscillation, and that you can bias the trannys at differents Vs for a variety of effects. Once I boxed it up - the oscillation went away. I also boxed it up with the Vs that sounded best to my ear, but when I tried it on different amps I sometimes got too much bass, and weird effects like a delayed attack, so I reset all biases to 4.5 and reclosed the box.<br /><br />This thing sounds perfect that way. It is dead silent when not playing and the loudest effects yet when I play. The tone controls are still ultra versatile, but tilted more towards the high end with the Vs all set at 4.5. Overall, just a great effect. I added an effects loop to it so you can tie in a delay unit if you want.motterpaulhttps://www.blogger.com/profile/15536330842070250774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13661235667500242152014-11-13T18:39:32.445+00:002014-11-13T18:39:32.445+00:00Oh, I see now the speaker emulator was a separate ...Oh, I see now the speaker emulator was a separate add-on project, not in this circuit.motterpaulhttps://www.blogger.com/profile/15536330842070250774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-25734197240811404342014-11-13T17:05:12.839+00:002014-11-13T17:05:12.839+00:00I didn't even notice there was a daughterboard...I didn't even notice there was a daughterboard when I started building it (not sure how I missed it), but no, I I did not build the daughterboard. The circuit works fine, great, even, woithout the daughterboard.<br /><br />By the way, I never fully understood why the daughterboard was needed. I also do not know which part of the circuit is the speaker emulator.<br /><br />Since I know you are interested - here are the voltages that I like best on the J201s<br />Q2 = 3.25<br />Q3 = 5.3<br />Q4 = 1.7<br /><br />However, you could practically pull numbers out of a hat for these voltages. I also had Q2 at 7.0 and Q3 at 2.5 and I liked that tone as well. In other words, there is a wide working range of voltages here. You could even build this pedal with holes to access these trim pots and individualized the pedal for different amps. The point is that the tone controls seem to respond differently depending on what voltages you select - so it is purely a matter of taste.<br /><br />I have it hooked up to a breadboard for power and I am noticing a somewhat irritating buzz at about 480 Hz. I am not sure where to start looking to eliminate that. I can tame it by turning down Q4 (or any Q) but you lose some of the gain.motterpaulhttps://www.blogger.com/profile/15536330842070250774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-17692294212265302302014-11-13T11:10:09.885+00:002014-11-13T11:10:09.885+00:00Nice one Paul, AMT do make some great pedals.
Did ...Nice one Paul, AMT do make some great pedals.<br />Did you just make the main board or include the daughterboard too? I wasn't sure whether the daughterboard would even be needed as there seems to be plenty of volume after the tone stack even without the recovery stageIvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-35119117283914363472014-11-13T05:52:23.272+00:002014-11-13T05:52:23.272+00:00I just finished this circuit and I love it. You ca...I just finished this circuit and I love it. You can use use the 2N5457 for Q1 no problem. Mine came right up. The volyages on the J201s have a LOT of range and the very cool thing about it is how much the frequency ranges on the tome pots vary depending on how much volyage you give each transistor. <br /><br />Start out with 4.5v on each, but maybe reduce Q4 to lower the noise and raise Q2 for more fullness. The best thing about this for me so far is it the SOOO loud that it does not lose its edge when you turn it down, it sounds just as full on half-volume as it does on full volume (referring to the volume pot).<br /><br />I used B50k for gain, A500k volume, A500k bass, B10k mid and B100k for high. My favorite by far so far and I will box it up tomorrow.<br /><br />motterpaulhttps://www.blogger.com/profile/15536330842070250774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-67394290879632306362014-09-06T18:14:25.163+01:002014-09-06T18:14:25.163+01:00Anyone have the vero layout for the AMT P1 or P2??...Anyone have the vero layout for the AMT P1 or P2???brandon.ahttps://www.blogger.com/profile/06293604136823973615noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-39727823419035786212014-04-02T14:24:14.967+01:002014-04-02T14:24:14.967+01:00Maybe I will just rebuild it but now with John K&#...Maybe I will just rebuild it but now with John K's version but it's a lot of work for just a pot range problem...<br />Zickhttps://www.blogger.com/profile/13994632340716656660noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2486504513859683962014-03-31T21:07:36.688+01:002014-03-31T21:07:36.688+01:00Hi, My B1 sounds fine. When I omit the daugtherboa...Hi, My B1 sounds fine. When I omit the daugtherboard the gain doesn't do much after the first half of the range of the pot. I am getting full gain so that is not a big problem. However, when I connect the daughterboard my volume pot only works as a sort of on/off knob in the first small part of it's range, then doesn''t do anything until it reaches almost the end of it's range where it suddenly makes the difference between low and max volume.<br /><br />Does anyone have a clue why this is happening?<br /><br />Any help is greatly appreciated!Zickhttps://www.blogger.com/profile/13994632340716656660noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14800536780623068012014-03-26T05:02:05.695+00:002014-03-26T05:02:05.695+00:00Yeah, I wish I could figure it out. The demo sound...Yeah, I wish I could figure it out. The demo sounds amazing.<br />J Hadlhttps://www.blogger.com/profile/03782327371007674833noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-54806927367053955742014-03-26T04:56:50.637+00:002014-03-26T04:56:50.637+00:00you may have something wrong with your build. I lo...you may have something wrong with your build. I love how mine sounds with the trimmable jfets set at 4.5-4.7V.johnkhttps://www.blogger.com/profile/00643996045674470081noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-38950048346405475012014-03-26T04:53:35.533+00:002014-03-26T04:53:35.533+00:00Right now I've got
Q2= 4.5v
Q3= 9.6v
Q4= 3.2v...Right now I've got <br />Q2= 4.5v<br />Q3= 9.6v<br />Q4= 3.2v<br />With that configuration I get a usable distortion sound, but it's nothing like the demo vid. If I rebias to J0K3RX's recommended voltages then I get a horrible thin and unusable icepick overdrive type of sound. Any thoughts?J Hadlhttps://www.blogger.com/profile/03782327371007674833noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61637555456155418622014-03-25T20:57:30.995+00:002014-03-25T20:57:30.995+00:00This comment has been removed by the author.J Hadlhttps://www.blogger.com/profile/03782327371007674833noreply@blogger.com