tag:blogger.com,1999:blog-6847048658257278783.post3537824603248525800..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Sobbat Drive Breaker DB-01IvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger47125tag:blogger.com,1999:blog-6847048658257278783.post-59135774034174927312016-01-16T20:09:59.268+00:002016-01-16T20:09:59.268+00:00Great pedal, however i have an issue with it that ...Great pedal, however i have an issue with it that drives me insane... On its own, works perfectly - no noise when not playing. When i place it in a loop of my fx switcher and power it with an isolated psu - insane noise (not with other pedals in that spot, so it is not the loop). When i daisy chain the power from this pedal to another the noise also flows to the daisy chained pedal - regardless if the Drive Breaker is bypassed or not... Can this be due to the buffer? (I checked the grounding of the enclosure = ok, all GND connected starlike on the output jack). Thanks in advance!Hastingshttps://www.blogger.com/profile/01161964831973851738noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-457286005194448582013-04-09T22:41:55.081+01:002013-04-09T22:41:55.081+01:00Hi, thanks for the vero layout. I like the pedal v...Hi, thanks for the vero layout. I like the pedal very much because it gives me something i was looking for a years and now i finally found it. Have anyone a schematics also? If so i'll be glad if someone could send it to me. Thanks.Greghttps://www.blogger.com/profile/04024379102389365500noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-39605902876902836892012-09-20T06:48:58.347+01:002012-09-20T06:48:58.347+01:00I switched the wires to the board only (treble3/ba...I switched the wires to the board only (treble3/bass3 and treble 1/bass 1) and it works as it's supposed to... not sure about the drive switch, but I left those as is, and everything works right. I highly recommend to anyone building this that you use infrared LEDs as the clippers. They just sound better... cleaner down low, but still a lot of gain up high. It's not as much gain down low on the knob, and not as much insane grind up high, but it's pretty awesome... chargerhttps://www.blogger.com/profile/05308995279691864974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-31037062760585437702012-09-18T20:34:39.909+01:002012-09-18T20:34:39.909+01:00Yes, with the case upside down they go 3,2,1 from ...Yes, with the case upside down they go 3,2,1 from right to left--I'm careful to the point of painting the 3 and 1 on with a paint pen. The gain and volume knobs work right.chargerhttps://www.blogger.com/profile/05308995279691864974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53722960780091064952012-09-18T18:43:55.843+01:002012-09-18T18:43:55.843+01:00Did you wire the pot numbering as shown here:
htt...Did you wire the pot numbering as shown here:<br /><br />http://tagboardeffects.blogspot.co.uk/2012/02/offboard-wiring.html<br /><br />If so thanks for the info and about the diodes, I'll update the layout. And just take the Drive 1 wire to Drive 3, and the Drive 2 & 3 wire to Drive 1 & 2. Then swap the Treble 1 and 3 wires over. You could do it at the pot or the board, but if you do it at the board remember to snip the Drive 2 & 3 link and place a new one between Drive 1 & 2.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2474407831254320602012-09-18T18:11:45.031+01:002012-09-18T18:11:45.031+01:00Hey, I built this and last night, compared it with...Hey, I built this and last night, compared it with my actual Sobbat DB-01. I'm happy to say it sounds identical through the range of settings, with one small issue. I'm 99% sure I have the pots wired as in the image, but both the treble and bass pots work backwards--more bass and treble counterclockwise. Is the solution to swap the wires (gain3/treble3 and gain1/treble1) at the board, or to rewire the pots?<br /><br />Also, I added a clipping switch which has the stock 1n914 pair on one side and a pair of infrared LED on the other side. Since the forward voltage jump is not drastic between Si diodes and infrared LEDs, it gives a subtle but noticeable change in headroom to the clipping character, but it's not a drastic volume jump like you get with red or yellow LEDs.chargerhttps://www.blogger.com/profile/05308995279691864974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-31618622183752641482012-08-12T22:29:18.919+01:002012-08-12T22:29:18.919+01:00i just discovered the problem i had. It was a resi...i just discovered the problem i had. It was a resistance. Now my klon runs at 100% :DAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26036269537937031342012-08-12T17:41:10.693+01:002012-08-12T17:41:10.693+01:00You're more likely to get an answer if you pos...You're more likely to get an answer if you post it on the Klon thread then someone who has built it is more likely to see it.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44951527497665514542012-08-12T17:37:50.773+01:002012-08-12T17:37:50.773+01:00Has anyone trie the klon? Does the pots change the...Has anyone trie the klon? Does the pots change the colume and tone?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-19389474595337136422012-07-23T17:50:13.152+01:002012-07-23T17:50:13.152+01:00i can't put an ic to can change tone and volum...i can't put an ic to can change tone and volume...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-6803106219707522932012-06-28T12:15:10.830+01:002012-06-28T12:15:10.830+01:00He built a Klon, but the pedal doesn't matter,...He built a Klon, but the pedal doesn't matter, the point is that he had trouble with 4 or 5 TL072's.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-74412526274225448872012-06-28T12:11:04.041+01:002012-06-28T12:11:04.041+01:00he built the klon of that pedal? or another?he built the klon of that pedal? or another?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-44756601206088199382012-06-28T10:19:05.719+01:002012-06-28T10:19:05.719+01:00Do you have another pedal you can test the TL072 i...Do you have another pedal you can test the TL072 in? Mirosol recently built a Klon and had to go through 4 or 5 TL072's to find one that worked. It has the same pinouts as the JRC4558 so that isn't a problem and as we know the layout is good it must be an IC problem.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-74591904969446976692012-06-28T10:14:54.127+01:002012-06-28T10:14:54.127+01:00Ive changed the ic with atl072 but the drive tones...Ive changed the ic with atl072 but the drive tones and volume don't run. The sound of the pedal are correct but the parameters no...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-70203792051289576662012-06-27T14:12:37.354+01:002012-06-27T14:12:37.354+01:00ahhh okok!! Thanks. I didn't knowahhh okok!! Thanks. I didn't knowAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-24337599973357760532012-06-27T13:24:30.114+01:002012-06-27T13:24:30.114+01:00I don't understand your question. 10K and 47K...I don't understand your question. 10K and 47K in parallel equals 8K2IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-39324711613696845362012-06-27T13:13:48.675+01:002012-06-27T13:13:48.675+01:00and what happens with the resistance 8k2?and what happens with the resistance 8k2?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-79088889854687913832012-06-27T13:02:21.732+01:002012-06-27T13:02:21.732+01:00YesYesIvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13969619725547790922012-06-27T13:01:50.835+01:002012-06-27T13:01:50.835+01:00That's the Toshiba version of the JRC4558. Th...That's the Toshiba version of the JRC4558. There are a number of ICs you could try which will work fine in there, TL062, TL072, TL082, NE5532, LF353N, LM1458, LM358N, LM833N, NJM062, NJM072, NJM082, NJM4558, OPA2134, OPA2604AP, RC4558P and plenty of others. How it sounds to someone else with their gear probably won't tell you very much though, it's something that you really need to try for yourself and use the one that works best for you and your setup.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-45354127920065238242012-06-27T11:53:01.769+01:002012-06-27T11:53:01.769+01:00if someone has built that can this person try usin...if someone has built that can this person try using the IC1 a TA75558P instead JRC4558DAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-55562794601427848052012-06-27T11:47:16.727+01:002012-06-27T11:47:16.727+01:00so... it's correct?so... it's correct?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15014046637596091792012-06-26T21:45:26.208+01:002012-06-26T21:45:26.208+01:00^^^^IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-91099633335019847272012-06-26T21:45:06.705+01:002012-06-26T21:45:06.705+01:00If you look on the schematic there is a 10K and a ...If you look on the schematic there is a 10K and a 47K resistor in parallel from the 9V supply to vref. 10K and 47K in parallel works out at 8K2 so I used one resistor instead of an unnecessary two.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-20317026486001722012012-06-26T21:43:47.436+01:002012-06-26T21:43:47.436+01:00in the schematic i sent you i don't see a resi...in the schematic i sent you i don't see a resistance of 8k2. what is that?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-86494751726870826422012-06-26T21:39:55.447+01:002012-06-26T21:39:55.447+01:00one question. in the schematic i sent you i don...one question. in the schematic i sent you i don't see the resistance 8k2. what is that?Anonymousnoreply@blogger.com