tag:blogger.com,1999:blog-6847048658257278783.post8411787982606800095..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Earthquaker Devices Tone ReaperIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger75125tag:blogger.com,1999:blog-6847048658257278783.post-1234958442294700602018-07-21T21:26:43.751+01:002018-07-21T21:26:43.751+01:00This comment has been removed by the author.Alberthttps://www.blogger.com/profile/00842911664178009651noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-46643077921483874972017-06-10T00:01:48.511+01:002017-06-10T00:01:48.511+01:00Oh, yeah, 10k for the silicon and 33k for the Germ...Oh, yeah, 10k for the silicon and 33k for the Germanium.Doxasoundhttps://www.blogger.com/profile/05179874479770299958noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11582971706314220302017-06-10T00:00:48.636+01:002017-06-10T00:00:48.636+01:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/09742051605011549480noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1801560198962061502017-06-05T18:37:20.989+01:002017-06-05T18:37:20.989+01:00I might give this a try as I've built a couple...I might give this a try as I've built a couple of these and have just been sticking an extra resistor at the end of the fuzz pot to get rid of the noise. Although wouldn't the bias resistor be the 10k not the 33k?Anonymoushttps://www.blogger.com/profile/16983809061179052412noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-49360134976980495162017-06-05T16:09:10.325+01:002017-06-05T16:09:10.325+01:00Hope this helps someone. In the Reaper's manua...Hope this helps someone. In the Reaper's manual, it says there's a bias trimmer inside to bias the germanium transistor to 4.5v, per usual. So might be worth socketing that 33k going to Q2's Collector!Doxasoundhttps://www.blogger.com/profile/05179874479770299958noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69017130888949034942017-03-17T19:28:35.059+00:002017-03-17T19:28:35.059+00:00Mine was sputtering with terrible sustain, with th...Mine was sputtering with terrible sustain, with the MPSA18, so I dropped in a 550c and the thing came to life! Hope this helps someone!Anonymoushttps://www.blogger.com/profile/09742051605011549480noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-77808168611142351582017-03-17T19:28:00.092+00:002017-03-17T19:28:00.092+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/09742051605011549480noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84108488331970501742017-03-01T00:48:57.711+00:002017-03-01T00:48:57.711+00:00Finished! After some swapping, I ended up with a h...Finished! After some swapping, I ended up with a higher gain AC127 and a germanium diode. Nice early Zeppelin/Sabbath type tones and straight up stoner with higher gain and tone settings. Seems to work well in front of a dirty amp too.qakhttps://www.blogger.com/profile/01037220622829073807noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59167144018409407792017-02-19T04:16:39.666+00:002017-02-19T04:16:39.666+00:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/16983809061179052412noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1164674399057849372017-02-19T03:56:43.106+00:002017-02-19T03:56:43.106+00:00Thanks. I have no idea where to start. Any suggest...Thanks. I have no idea where to start. Any suggestions? Mikehttps://www.blogger.com/profile/03632291145193467569noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-88199456653756689842017-02-19T00:48:42.813+00:002017-02-19T00:48:42.813+00:00if you're getting that big of a drop it may be...if you're getting that big of a drop it may be because your volume pot or a resistor value somewhere is too large. Anonymoushttps://www.blogger.com/profile/16983809061179052412noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-51599683646799309432017-02-18T23:24:28.913+00:002017-02-18T23:24:28.913+00:00I built this, sounds good but output is dropped qu...I built this, sounds good but output is dropped quite a bit from normal, say 25%. Is there something I can do to add output to match when it's off?<br />Anonymoushttps://www.blogger.com/profile/01918062206160225228noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-43055092041379698972017-02-16T18:41:36.917+00:002017-02-16T18:41:36.917+00:00I'm probably gonna put a small resistor before...I'm probably gonna put a small resistor before the pot to keep some resistance on there even when the fuzz is on full. Anonymoushttps://www.blogger.com/profile/16983809061179052412noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-79286300536390597242017-02-16T11:24:23.263+00:002017-02-16T11:24:23.263+00:00I built it as above except using an MP38 for the g...I built it as above except using an MP38 for the germ. The MP38 had an HFE of 80 with very little leakage. I tried a higher HFE - over 90 - but prefer the sound of the the 80. It is a very cool pedal, and mine is lower gain than most Tonebenders I have built, and I like that. <br /><br />I also tried a 2N1308 with an HFE over 100 but the MP38 actually sounds a lot warmer and is quieter too. In mine the tone control adds bass a it is turned CW and doesn't really affect the treble at all. That's ok because the treble is just about perfect anyway.<br /><br />With the MP38 I am getting a really good "vocal-like" tone which is less buzzy and harsh than the average TB. I really like this pedal.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1963715393714910722017-01-30T07:03:01.180+00:002017-01-30T07:03:01.180+00:00Hi, I have exactly the same problem ! when the fuz...Hi, I have exactly the same problem ! when the fuzz pot is all the way up, an horrible noise is coming. What can we do to remove the noise ? ThanksBlueOysterCulthttps://www.blogger.com/profile/02356438152125586466noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-65947989319498616632017-01-21T02:14:21.622+00:002017-01-21T02:14:21.622+00:00I just built this board and it sounds great, excep...I just built this board and it sounds great, except when I turn the fuzz all the way up it feeds back. Anyone know how to fix this?Anonymoushttps://www.blogger.com/profile/16983809061179052412noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59147155703197868142016-12-11T12:43:46.135+00:002016-12-11T12:43:46.135+00:00Let it sit for a couple of days and had a fresh lo...Let it sit for a couple of days and had a fresh look at it today. Had the 1uf at the top soldered to the power rail and not the rail below. Changed that and *boom* works like a charm. Gotta box it and shorten some of the cables to make it a little quieter. But again, thanks for posting all those fantastic layouts and for the help with the debugging.Anonymoushttps://www.blogger.com/profile/06594448358658335673noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-90085496536843410122016-12-07T09:36:25.572+00:002016-12-07T09:36:25.572+00:00I am going to reflow some solder joints tonight. I...I am going to reflow some solder joints tonight. If this does not solve the problem I'll post some pics on the forum. Thanks.Anonymoushttps://www.blogger.com/profile/06594448358658335673noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-63572928963078193522016-12-07T02:10:29.286+00:002016-12-07T02:10:29.286+00:00correct the line on D1 is on the power rail (top r...correct the line on D1 is on the power rail (top row). you definately have a build error going on. i would post pics, a description of the problem, and transistor voltages in the debugging section of the forum.Zachhttps://www.blogger.com/profile/00044917566185720896noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-9670926062996204672016-12-06T20:31:49.308+00:002016-12-06T20:31:49.308+00:00Built the board, tested it without the footswitch....Built the board, tested it without the footswitch. The LED lights up, but there is only humming on the output. When I turn down the Volume put the humming goes silent when full CCW.<br /><br />I am still unsure about the orientation of D1. Is the ring heading up or down?Anonymoushttps://www.blogger.com/profile/06594448358658335673noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61828147807080485422016-12-02T22:31:44.151+00:002016-12-02T22:31:44.151+00:00Any ideas on what hFe I should shoot for for the g...Any ideas on what hFe I should shoot for for the ge transistor in this?Dr Joneshttps://www.blogger.com/profile/10588796707742238157noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-68112974331042445892016-11-19T22:29:14.166+00:002016-11-19T22:29:14.166+00:00Using a MP38A on mine.Using a MP38A on mine.AlexShttps://www.blogger.com/profile/05624907590644025643noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-83933791662092229462016-11-16T01:11:09.190+00:002016-11-16T01:11:09.190+00:00made the corrections.made the corrections.Zachhttps://www.blogger.com/profile/00044917566185720896noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47324673910771602382016-11-15T17:34:40.344+00:002016-11-15T17:34:40.344+00:00100n should be 10n too.100n should be 10n too.AlexShttps://www.blogger.com/profile/05624907590644025643noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-60188151185396799442016-11-15T14:37:29.417+00:002016-11-15T14:37:29.417+00:00Oh shit. Can't believed I missed that. I'l...Oh shit. Can't believed I missed that. I'll fix it when I get home. Thanks miro. Zachhttps://www.blogger.com/profile/00044917566185720896noreply@blogger.com