tag:blogger.com,1999:blog-6847048658257278783.post3982178248149823023..comments2024-03-28T18:53:30.726+00:00Comments on Guitar FX Layouts: Diezel VH4IvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger43125tag:blogger.com,1999:blog-6847048658257278783.post-57189672553662293422021-02-01T16:28:57.709+00:002021-02-01T16:28:57.709+00:00This worked perfectly at first. Then, after about ...This worked perfectly at first. Then, after about a week, I lost output level and the oscillation that many others described began. I ended up placing a buffered pedal before it and it resolved the oscillation. Later, I built a small opamp buffer to place between the input and circuit in, and it works perfectly. It tamed some of the extremely bony bass frequencies as well. Anonymoushttps://www.blogger.com/profile/07530242461108674340noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44881739558511447082020-02-20T10:29:28.556+00:002020-02-20T10:29:28.556+00:00OK, I was wrong. One of the 2.2 electrolytic caps ...OK, I was wrong. One of the 2.2 electrolytic caps was off by one hole. Now that that's fixed and everything is verified in the correct place and resoldered, nothing works at all. No signal going through to the amp either when the pedal is on or off. I'm at a loss.<br /><br />Does anyone have a pic of the offboard wiring? Wondering if I did something wrong thereSilvahttps://www.blogger.com/profile/02808859290038237304noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84308284461954393762020-02-20T06:45:27.218+00:002020-02-20T06:45:27.218+00:00I just built this and I am having troubles. The p...I just built this and I am having troubles. The pedal does not work at all when it is switched on. All I get is a high pitched whine. When the pedal is off, the gain knob somehow affects the bypass signal. When the gain knob is turned all the way down, the bypass works; if I turn it up, the signal disappears. I have checked every component and they are all in the right place and oriented correctly. I have resoldered every connection twice. Anyone have any ideas?Silvahttps://www.blogger.com/profile/02808859290038237304noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-6872062639545763562019-11-13T22:45:53.767+00:002019-11-13T22:45:53.767+00:00
hello everyone, congratulations for the scheme, ...<br /><br />hello everyone, congratulations for the scheme, I have a problem,the pedal works but the volume of the distortion is much lower than that of the clean, someone will help me please?thanks!!!!santihttps://www.blogger.com/profile/00968991619289378293noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52178767175300796262019-11-13T22:43:12.641+00:002019-11-13T22:43:12.641+00:00This comment has been removed by the author.santihttps://www.blogger.com/profile/00968991619289378293noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-16264945092145162402019-07-19T11:17:52.159+01:002019-07-19T11:17:52.159+01:00Hi please can you post the photo or explain a litt...Hi please can you post the photo or explain a little beat because I can't see the photo in the forum you said ! I'm registered but don't have permission to the the file … ThxFranckhttps://www.blogger.com/profile/04119138753276877255noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-51284518509773724592019-06-08T08:07:21.433+01:002019-06-08T08:07:21.433+01:00This comment has been removed by the author.Kirkushttps://www.blogger.com/profile/06425877995315434774noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-33555556975461501772019-03-24T14:18:40.033+00:002019-03-24T14:18:40.033+00:00That was accidentally but I was connected "Mi...That was accidentally but I was connected "Middle 2,3" in place "SW6" on board, and... WOW!! KILLER!!<br />It stays, altough I've lost Bass and Treble control! :)<br /><br />I'm connecting through "Power OUT jack" to 3PDT switch.debeohttps://www.blogger.com/profile/04826086112705999514noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73018949476405196582019-03-23T20:43:34.118+00:002019-03-23T20:43:34.118+00:00For anyone having problems with oscillations when ...For anyone having problems with oscillations when Gain pot is above 60-75% - I recommend to shield Input and Gain wires as described on Freestompboxes forum: http://www.freestompboxes.org/viewtopic.php?f=1&t=28011&p=274921#p274921Iczikohttps://www.blogger.com/profile/01820509657980412941noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61688146714322502092019-03-23T20:42:24.949+00:002019-03-23T20:42:24.949+00:00No, it is -Vcc, in this case it is -12 VDC.No, it is -Vcc, in this case it is -12 VDC.Iczikohttps://www.blogger.com/profile/01820509657980412941noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-77336820228265301652018-11-29T22:25:20.501+00:002018-11-29T22:25:20.501+00:00Me three. Anyone know how to remedy this? Me three. Anyone know how to remedy this? HurricaneHordakhttps://www.blogger.com/profile/16809479297559687263noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-89796074356211700212018-10-21T08:28:03.399+01:002018-10-21T08:28:03.399+01:00Did not the pin 4 of the oPA2134 need to be ground...Did not the pin 4 of the oPA2134 need to be grounded?blakolhttps://www.blogger.com/profile/12398768024543808623noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-25252839356047980102018-10-06T15:39:52.975+01:002018-10-06T15:39:52.975+01:00Vag McPan. Hello. I build it twice and it sounds g...Vag McPan. Hello. I build it twice and it sounds great but in both pedals i get a high frequency when the gain is over 50%. when i roll the guitar volume down it is like an oscillator... did you find solution to your problem? <br />Anonymoushttps://www.blogger.com/profile/00785944972178447687noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64470473070444880882018-09-24T07:31:44.480+01:002018-09-24T07:31:44.480+01:00This comment has been removed by the author.Nikhttps://www.blogger.com/profile/01046217636341897006noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50133791091226455672018-07-16T21:08:39.592+01:002018-07-16T21:08:39.592+01:00I too was getting low voltage and ran into many pr...I too was getting low voltage and ran into many problems trying to build it: noticed the D3-D4 we're getting too hot. I removed them and even though it was working there was the voltage doubler squeal, even though I used icl7660scpaz. Changed it with a max1044, which was working fine at the beginning noiseless, but the next day it was getting hot and squeeling again. My bad, since max1044 accepts max of 10 volts :) so I'll start over with a new 7660s. I'm feeding 18V to it, and use a simple 7812. Even though, I get oscillations when gain and presence pot are above 75%... Anonymoushttps://www.blogger.com/profile/07282065124952896310noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84471181562221236292018-06-29T07:03:24.415+01:002018-06-29T07:03:24.415+01:00Thank you for the layout! What wattage should i ta...Thank you for the layout! What wattage should i take for the 10R resistors? mr Eddyhttps://www.blogger.com/profile/03383956547824845169noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53145527328474746662018-04-12T07:35:19.137+01:002018-04-12T07:35:19.137+01:00what are the red squares in the schematic?what are the red squares in the schematic?Anonymoushttps://www.blogger.com/profile/10011739797268265636noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-56331840594718468032018-04-04T20:11:09.442+01:002018-04-04T20:11:09.442+01:00yes man, any daul opamp should work~yes man, any daul opamp should work~pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26262965376546677472018-04-01T14:01:59.329+01:002018-04-01T14:01:59.329+01:00built this, and get it works in board test, butthe...built this, and get it works in board test, butthen no sound when I box it up, check the lm2940 is dead, place with 7812 and 7660s it works again.. but it no sound again now.. I read the positive voltage 6.1v at 074 pin.11 and 7.8v on pin4, is it possible? pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59062653182863347912017-12-09T16:15:42.059+00:002017-12-09T16:15:42.059+00:00Would be ok to use other op amp like the NE5532 or...Would be ok to use other op amp like the NE5532 or RC4558, instead fo the opa2134?Eric Pulidohttps://www.blogger.com/profile/12152029662568734469noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-40691499870265071852017-09-12T06:08:16.630+01:002017-09-12T06:08:16.630+01:00Cool! Thanks Gavin!Cool! Thanks Gavin!Alexhttps://www.blogger.com/profile/02431893143306628176noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-18351804209880723682017-09-11T19:27:03.167+01:002017-09-11T19:27:03.167+01:00Call it verified! Built it on Saturday and couldn&...Call it verified! Built it on Saturday and couldn't get it to work. Went through all the usual debugging and just couldn't find anything. Was getting sound through but just a squeal. Anyway, came back to it tonight and first thing i noticed was i had D3 the wrong way round....Doh! Fixed that and now its alive and sounding great. Thanks Alex & the dudes at FSB.Hozy31https://www.blogger.com/profile/16714771534041521767noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47379825682275808282017-09-07T22:36:11.585+01:002017-09-07T22:36:11.585+01:00thats great, thank you~thats great, thank you~pakkee66https://www.blogger.com/profile/12727597403973037143noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-62550330502681814942017-09-07T08:32:23.203+01:002017-09-07T08:32:23.203+01:00yes I think that's the best route, I had a nic...yes I think that's the best route, I had a nice delivery of 1590bb's yesterday and plenty of space on my board. there have been a couple of builds I've regretted leaving bits out of<br /><br />thanks buddyAnonymoushttps://www.blogger.com/profile/06241145840350040657noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-70208787508621161152017-09-07T08:05:02.191+01:002017-09-07T08:05:02.191+01:00LM7812 will be fineLM7812 will be fineAlltrax74https://www.blogger.com/profile/13079701857494829507noreply@blogger.com