tag:blogger.com,1999:blog-6847048658257278783.post4420121277690137372..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: GoosoniqueWorx SeventheavenIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger86125tag:blogger.com,1999:blog-6847048658257278783.post-86443714493959654592022-12-13T15:39:19.324+00:002022-12-13T15:39:19.324+00:00Howdy Folks! I love this guy so much, I've bui...Howdy Folks! I love this guy so much, I've built two of them now. I decided to build them without the charge pump and just run them at 18V.<br /><br />I am having an issue with both of them squealing like mad if the treble and/or presence knobs are set kinda high and I try to move the tone knob on my jazz bass past say 2 o'clock-ish. I have included a Cornish buffer on the output which helps a little bit, but really just changes the frequency of the squeal more than anything. Otherwise operates and sounds like it should.<br />Also, this whole thing is crammed into a 1590BB. Might it benefit from having a little more room to breathe?<br /><br />Any suggestions on how to further tame this little piggy would be greatly appreciated. THANKS!!strangeloophttps://www.blogger.com/profile/04670063244988019134noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-38372683614645274282022-02-06T13:32:40.566+00:002022-02-06T13:32:40.566+00:00I've finally gotten around to boxing my build ...I've finally gotten around to boxing my build of this tonight into a DD. I've put the boost and structure on separate footswitches, and included a switch for 9-18v using the included charge pump in the layout.<br /><br />I was messing around with a buffer, but there's no squeal even with the gain at full. It's substantially louder at 18v, and while I haven't tested it completely, at 9v it might struggle to get to unity.<br /><br />I do like this drive a lot.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-3215863753043969112022-01-27T14:30:31.226+00:002022-01-27T14:30:31.226+00:00Sorry for the 2 years between comments.
Yes, the ...Sorry for the 2 years between comments.<br /><br />Yes, the image at the top of this page works great.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-54113517154938447752021-06-20T20:37:25.212+01:002021-06-20T20:37:25.212+01:00OK - Q4 is OK
Q3 = 12V
Q2 - 9.6VOK - Q4 is OK<br />Q3 = 12V<br />Q2 - 9.6VAriehttps://www.blogger.com/profile/09353929353610676806noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73086990312179056872021-06-20T19:48:07.302+01:002021-06-20T19:48:07.302+01:00so, i built this great layout - but when switched ...so, i built this great layout - but when switched on i'm getting no sound, and drain voltages are at about 11-16 volts, except on Q1 where they're normal - where do i even start looking?Ariehttps://www.blogger.com/profile/09353929353610676806noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-12602781834776891222021-06-20T19:46:44.903+01:002021-06-20T19:46:44.903+01:00This comment has been removed by the author.Ariehttps://www.blogger.com/profile/09353929353610676806noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-34419939774439176872020-04-08T11:46:49.644+01:002020-04-08T11:46:49.644+01:00Okay, I've just traced it out, here is the Red...Okay, I've just traced it out, here is the Red/Blue mod:<br />www.puzzlefactory.uk/Bogner-XTC-pedal-Goosoniqueworx-Seventh-Heaven---Blue-Red-switch.jpg<br /><br />As you can see in the inset section on the right, the 500k+470p that are in parallel feeding the Gate of Q4 have been moved to new tracks, that connects to the new SPDT switch's common (pin 2). Pins 1 + 3 come post-Q3 (the pink X) and pre-Q3 (the pink circle), which is the point where the 100n+500K meet.<br /><br />When you relocate one side of 500k+470p, you will need to break the track to avoid bridging a connection to somewhere we don't want.<br /><br /><br />The only other significant difference between Bogner's and Goosoniqueworx's designs is that Bogner has post-gain EQ whereas Seventh Heaven is pre-gain. (And that it uses transistors instead of tubes, of course!)<br /><br />I'm looking forward to building this! Thanks everyone who's contributed so far!<br />(Incidentally, apparently this circuit is much more stable at 9v than at 18v, so I'm planning to start it as a 9v build.)Daxhttps://www.blogger.com/profile/10156386152968013118noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-28696772197213688402020-04-08T10:45:55.184+01:002020-04-08T10:45:55.184+01:00By the way, it looks like the only significant dif...By the way, it looks like the only significant difference between Red and Blue is that Blue has one less gain stage.<br />The Bogner XTC amp schematic: https://i.imgur.com/qMPYiRC.jpg<br /><br />It was suggested in this post that the Structure switch was Red/Blue, but to me it looks more like it changes the second tube/transistor's gain and EQ. From my limited understanding, lowering the resistance to ground lowers the gain.<br /><br />The Bogner channel switching uses a relay which toggles between 2 pairs of pots; one pair of gain pots and one pair of level pots, allowing you to balance the two channels. Those aren't really necessary for a pedal, of course.<br /><br />The significant difference is that the third tube/transistor (V3b/Q3) is skipped.<br />It should be pretty easy to recreate this feature in this stripboard layout. I'll try it once my parts arrive and report back.Daxhttps://www.blogger.com/profile/10156386152968013118noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-48714653182936646702020-02-27T23:32:42.010+00:002020-02-27T23:32:42.010+00:00Your revival is very convenient as I'm about t...Your revival is very convenient as I'm about to start mine. So, a straight build from the layout on top worked?Marianitem Scale Modelshttps://www.blogger.com/profile/11319095117636668908noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2700035406959766412019-07-14T04:15:10.782+01:002019-07-14T04:15:10.782+01:00Bit of a necro revival, bit I built this again, th...Bit of a necro revival, bit I built this again, this time from the layout at the top of this post but only on 9v, and it's working great - no buffer, no squeal, structure and boost switches are making noticeable differences. I was going to build this with just the boost on a footswitch, but the structure is possibly a better move. Both would be ideal...Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-30167127025764525202019-04-20T13:16:50.869+01:002019-04-20T13:16:50.869+01:00I used the boss input and output buffers on vero w...I used the boss input and output buffers on vero with this build and it killed the squeal.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-20359734041410414862019-04-20T13:07:54.100+01:002019-04-20T13:07:54.100+01:00Change the 500k resistor on Q4, up the gain pot to...Change the 500k resistor on Q4, up the gain pot to 1meg.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-68385001350824209012019-03-05T18:05:25.738+00:002019-03-05T18:05:25.738+00:00hey Mark and all other good ppl of the forum
abou...hey Mark and all other good ppl of the forum <br />about the squeling treble feedbacky sound I throw a ds-1 front of 7th Heaven and the squeking stopped. Buffer in front (and probably at the end of 7th heaven) definetely works. Keep that in mind when biasing the circuit at 18V. (Y)mourningwoodhttps://www.blogger.com/profile/08657578093372462307noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69498685893150427752019-03-04T14:53:46.681+00:002019-03-04T14:53:46.681+00:00Hey guys!
Could somebody help me where to start s...Hey guys!<br /><br />Could somebody help me where to start seeking for any problems?<br />I just don't have enough gain from this pedal, it's like a crbunch stuff, not a hi gain monster (I replaced the Q4 gate 500K resistor to an 1M). And it's strange but I hit the boost switch, it becomes less distorted and less loud. (The boost is ON when it's 2 wires are connected by the switch?) If all of the pots on the max, structure is on, bypass is off(?) it has the maximum gain, but it's still not high gain, just not enough ie for simple smetal riffing. I use an active guitar anyway.<br />I tried it on 9V, and my voltages are:<br /><br />BOOST OFF, STRUCTURE OFF<br />Q4: 4.54<br />Q3: 4.47<br />Q2: 4.49<br />Q1: 4.50<br /><br />BOOST ON, STRUCTURE OFF<br />Q4: 4.54<br />Q3: 4.46<br />Q2: 4.48<br />Q1: 4.52<br /><br />BOOST OFF? STURCTURE ON<br />Q4: 3.90<br />Q3: 4.44<br />Q2: 2.12<br />Q1: 4.49<br /><br />BOOST ON, STRUCTURE ON<br />Q4: 4.19<br />Q3: 4.40<br />Q2: 2.22<br />Q1: 4.50<br /><br />I've checked for wiring, pots, component values, placements many times (I found a misplaced cap that I fixed), cold solderings and everything seems to be ok, and i have no idea where should I continue troubleshooting...Anonymoushttps://www.blogger.com/profile/11911596526912446300noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1895753528165632522019-03-01T04:39:04.051+00:002019-03-01T04:39:04.051+00:00Any mods to increase the gain of this pedal?Any mods to increase the gain of this pedal?fuss buzzhttps://www.blogger.com/profile/06118502049295228735noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44590381429989426112018-07-23T04:19:24.482+01:002018-07-23T04:19:24.482+01:00Are there anyone like me thought that the presence...Are there anyone like me thought that the presence knob doesn't work at all?<br />Anonymoushttps://www.blogger.com/profile/08584661166567405586noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2983348084195088312018-07-13T10:31:57.160+01:002018-07-13T10:31:57.160+01:00Hi everyone - greetings from Australia. Thanks to ... Hi everyone - greetings from Australia. Thanks to everyone who has contributed to this forum, particularly those who take the time and show the patience to share their knowledge with everyone - its greatly appreciated, and i have learnt so much in a small amount of time.<br /><br /> I'm a bog fan of 70s metal - particularly love the tones of Judas Priest Unleashed in the East album, so surprise surprise, my first projects were treble boosters and mxr D+, then onto the fabled cornish ss2. All successful, so then i decided to take on this beast based on Brett Kingmans demo.<br /><br /> So how did i go? Well, I took on the 9V version Mark has posted above and biased the jfets to around the 4.5V mark. So i plugged it into my trusty Albion TCT50 and held my breath. Bugger, no sound. Nothing. Then i saw a small problem - no battery. D'oh!!<br /><br /> Bloody hell this thing cranks - after playing around for half an hour or so, i took the advice and rebiased Q3 and Q4 by ear to take away the top end - much sweeter.<br /><br /> So thanks to everyone -I took Marks further advice with the idea of a DD box. As a bedroom basher only, i used a DD box with the pots and toggles all side mounted (no footswitch)so now i have an always on / amp top box in the tradition of the rangemaster.<br /><br /> So in answer to qs above:<br /><br /> 1. Yes, the schematic above does work and is verified<br /> 2. Take the time to bias by ear - well worth it<br /> 3. Don't forget to put in a battery - they work better that way.<br /><br />4. common 510k and 4k7 are fine<br />5. cornish booster AFTER seemed to tame it a bit, so I would take other peoples advice and consider a buffer<br /><br /> Thanks again to everyone who takes the time to trace schematics, share them and keep us educated. You are all bloody legends!! I think after this one, I am ready to take on the Signal Pad. CheersAnonymoushttps://www.blogger.com/profile/09549767494099359001noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-24897736193675228792018-07-13T10:12:00.563+01:002018-07-13T10:12:00.563+01:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/09549767494099359001noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-30752100763748721312018-06-30T10:53:19.753+01:002018-06-30T10:53:19.753+01:00YELLING IS THE BEST WAY TO GET ANSWERS!
+mYELLING IS THE BEST WAY TO GET ANSWERS!<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-9706844663073022212018-06-29T15:28:02.140+01:002018-06-29T15:28:02.140+01:00WHICH SCHEMATIC IS THIS MADE FROMWHICH SCHEMATIC IS THIS MADE FROMAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-80598105066796517392016-06-09T19:05:57.455+01:002016-06-09T19:05:57.455+01:00Swapping Q4's 500k resistor for a 1meg is a mo...Swapping Q4's 500k resistor for a 1meg is a monster change. Stacks more dirt now. I'm still fiddling with this though. Boost doesn't make as much difference with the new resistor, but I'm also still fiddling with the trimmers. Setting them all for 9v or so (running with the charge pump) is probably a bit too much. Doing it by ear is probably the best way... dunno.<br /><br />I'm also finding that the gain range on the pot is substantially more narrow. It's basically "crazy" to "slightly less crazy"<br /><br />What I do know is that the structure switch doesn't make any difference to my build, and hasn't since I first tested it (with, without buffers, 9 or 18v).<br /><br />Using this layout, my treble pot works in reverse:<br />http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/7thHeaven/001-7thHeaven.png<br />Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-65414325209999023352016-05-28T14:30:41.915+01:002016-05-28T14:30:41.915+01:00Think I'm pretty happy with this. I'm run...Think I'm pretty happy with this. I'm running a jfet buffer before and after, and also running at 18v using a MAX1044 as the charge pump. It was still a bit blatty, so I engaged the boost, turned all the knobs up flat out and trimmed by ear, which took a while, until the max gain with no blat was found.<br /><br />So, I think it's about right, or as close to.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47042967132030458492016-05-22T09:38:38.297+01:002016-05-22T09:38:38.297+01:00Putting a buffer before and after does a lot of go...Putting a buffer before and after does a lot of good. No squeal now, but the boost is still a bit blatty.Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-20948050845709188362016-05-22T05:35:00.999+01:002016-05-22T05:35:00.999+01:00Hmm... I really want this one to work as I loved t...Hmm... I really want this one to work as I loved the video demos.<br /><br />I've built this version of Johns:<br />http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/7thHeaven/001-7thHeaven.png<br /><br />but while I've got the voltages all on 4.5 (running off a fresh 9v battery), it sounds ok, but has a fuzzy "blat" to it, especially/mainly when the boost is on. The structure switch doesn't seem to make much of a difference, but the boost definitely does.<br /><br />It sounds way better with a klon buffer after it but I'm getting a squeal with the boost on when a buffer is in the chain. I can get rid of that squeal if I turn the treble right down... (everything is up flat out for testing purposes).<br /><br />Any ideas? I'll go through and check joins and the like in the meantime. Non boost, it sounds pretty good, now if I can just get rid of the "blat"..Willyhttps://www.blogger.com/profile/11648064857147436853noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-34960465995041212162016-05-12T08:11:09.899+01:002016-05-12T08:11:09.899+01:00Hi everybody, thx a lot for this great layout and ...Hi everybody, thx a lot for this great layout and all the others on this fantastic website!!<br /><br />I finished mine work and sound awesome!!<br />But I have got the same squeal problem than describes on previous comments when Structure switch is engaged ; anybody have a solution to solve this ?<br /><br />I had same squeal with the Catalinbread DLS MKIII ; I replace the 7660S with a LT1054 and the squeal was gone ! <br />Can I you an LT1054 with this charge pump?<br /><br />Thx for your help<br />Geoffroy BlondinLuxhttps://www.blogger.com/profile/07023768101855102782noreply@blogger.com