tag:blogger.com,1999:blog-2534195963488802319.post6717616386815540266..comments2024-03-06T06:57:59.305-08:00Comments on DIY Strat (and other guitar & audio projects): Building a quick Brian-May-style treble booster on Veroboardstuhttp://www.blogger.com/profile/02461220593169801487noreply@blogger.comBlogger35125tag:blogger.com,1999:blog-2534195963488802319.post-61379736012205254492021-03-17T05:56:02.020-07:002021-03-17T05:56:02.020-07:00Hi there,
I just built this, I had a problem with...Hi there,<br /><br />I just built this, I had a problem with not much gain coming out, the Fix was that I had a Ceramic capacitor on the output (C3 47nf, I swapped it out for a Polyester and bingo worked first time. I get great tone now. Best wishes Matthew. Matthew Northhttps://www.blogger.com/profile/17387779319629639338noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-53967973743983168782019-09-22T10:05:54.956-07:002019-09-22T10:05:54.956-07:00I had to come back and leave another comment. I re...I had to come back and leave another comment. I recently built this pedal and after building it decided to add a volume control to the output which i find INCREDIBLY USEFUL. I just got done playing it through my Marshall DSL100HR and im blown away. I recommend using an MPSA18 transistor (the diagram has the transistor backwards, if your getting volume boost its the right direction and if your getting a volume drop its backwards). I tried several transistors including the 5088 and 4401 that were recommended and i found that the MPSA18 blew them out of the water. And the MPSA18 is low noise which is a plus since TB's can be noisy. Another thing to remember, do not i repeat DO NOT place this pedal after a buffered pedal. In fact i HIGHLY recommend not placing it after any pedal. It works best first in the chain. If placed after a buffered pedal its going to make this pedal sound really bright and shrill. Treble boosters shouldn't be bright and shrill despite their name. You should be getting a pleasing bright not a torturous bright lol. If you dont wanna take my word for it head over to Analog Man's site and read up on the Beano Boost which will say not to place the Beano Boost after a buffered pedal. Whether AM wants to admit it or not the Beano Boost is basically the same design as this build but with a few higher "quality/dollar" components lol(if your not familiar with the Beano boost go look it up, its humorous how identical the BMTB and beano boost are to one another). Anyways, this really is a great pedal. As with most pedals using it the right way is paramount. So just to recap, place it first in your chain, if your getting a volume drop flip around the transistor(i highly recommend putting a socket down first so this will be easier and you can audition transistors easier) and lastly i personally recommend a volume knob upgrade after the gain pot in between the gain pot's output and the 3dpt switch and recommend the use of an MPSA18 transistor as it sounds great and is low noise but thats just my personal preference. Anyways i just wanted to share my experience cause this is such a great pedal when used right and such a disappointing one when used wrong lol!minglisnew1967@gmail.comhttps://www.blogger.com/profile/15531063399395675502noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-83379483556385300672019-09-20T16:43:57.728-07:002019-09-20T16:43:57.728-07:00Anonymous Anonymous said...
Hi, so I built the cir...Anonymous Anonymous said...<br />Hi, so I built the circuit and when switched on the only difference seems to be a huge volume and tone drop. The signal is still audible but not much. Any thoughts on what the problem might be?<br /><br />March 12, 2016 at 7:26 PM<br /><br /><br />The above post is more than likely due to the transistor being backwards. If your having this issue thats probably all you need to do to fix it. This effect boosts the signal a great deal not the other way around so thats a dead give away somethings not right. minglisnew1967@gmail.comhttps://www.blogger.com/profile/15531063399395675502noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-61150564888307404172019-09-20T16:40:41.431-07:002019-09-20T16:40:41.431-07:00I just built this exactly how it is here except i ...I just built this exactly how it is here except i used a DC jack witout a battery and used a 1590b instead of a 1590BB, oh an i put in a socket for the transistor. Everything in this diagram is correct except all of my transistors worked opposite of the way they are listed here. I know some can be different than others(orientation wise) but ALL my transistors were the other direction with the flat side facing in. If your getting a weird volume drop with lots of treble then this is likely your problem as well. Other than that great circuit. Ive been having tons of fun with mine. Just finished it yesterday. I ended up going with an MPSA18 transistor, its a low noise transistor that sounds pretty much identical to the 5088 but with WAYY less noise. And the 4401 was too "full" it just did not work "right" in this circuit for me. Your mileage may vary as it could just be this particular transistor. All the parts i used were new except the electrolytic capacitor, I had a few lying around that i salvaged from and old car sub amplifier. Thanks to the OP! Really great info, your blog made this a lot easier. Ive been building DIY pedals for quite awhile but this was my first build where i sourced all the parts myself. Very satisfying to say the least. Other than the transistor being backwards it worked right away. I noticed the OP say he preferred the stock treble position and the bass position best. I actually prefer the Bass and Mid position with my JB/59 loaded guitar. But ive noticed with single coils the Treble and bass modes are better but i still like all 3 positions either way. I -might- change the cap in the stock position. Its just a tad bright, i think a cap that lets in a little more of the lower frequencys while still being in the treble range would be perfect. minglisnew1967@gmail.comhttps://www.blogger.com/profile/15531063399395675502noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-76071139063309432252019-01-17T07:37:53.078-08:002019-01-17T07:37:53.078-08:00"Unknown said...
Hello! I've got one ques..."Unknown said...<br />Hello! I've got one question. Where are those 2 wires at the bottom side of the dpdt footswitch going. I mean the closest wires from the dpdt to the battery.<br /><br />November 10, 2018 at 8:28 AM"<br /><br />The two wires at the bottom just connect the bottom to lugs of the switch together. So when the switch is off, the signal passes straight through from input to output. Anonymoushttps://www.blogger.com/profile/15294078968665682925noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-83169745462653757632018-11-10T08:28:39.680-08:002018-11-10T08:28:39.680-08:00Hello! I've got one question. Where are those ...Hello! I've got one question. Where are those 2 wires at the bottom side of the dpdt footswitch going. I mean the closest wires from the dpdt to the battery.Anonymoushttps://www.blogger.com/profile/13134283579067863193noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-75838961418452469342018-06-03T04:44:36.833-07:002018-06-03T04:44:36.833-07:00Thanks for this usefull article.Thanks for this usefull article.Siltinimas putomishttps://www.polypro.ltnoreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-3597533028368828342018-05-10T06:08:33.790-07:002018-05-10T06:08:33.790-07:00Hi. Have built this for (and with) my son. Follo...Hi. Have built this for (and with) my son. Following your instructions it seems to be working great. It was a bit buzzy before we fitted it into its aluminium box enclosure, but the metal box fixed that little issue. It's now dis-assembled while we spray up the box and make it look nice.<br />Thanks very much for taking the time to write this up and answer the various questions posed by others along the way - appreciated.<br /><br />MMFhttps://www.blogger.com/profile/14287022488367286994noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-37869165284320868542016-03-12T19:26:59.397-08:002016-03-12T19:26:59.397-08:00Hi, so I built the circuit and when switched on th...Hi, so I built the circuit and when switched on the only difference seems to be a huge volume and tone drop. The signal is still audible but not much. Any thoughts on what the problem might be?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-61354380814974406802014-05-26T00:42:39.860-07:002014-05-26T00:42:39.860-07:00Thanks for the compliment.
C5 and C6 are soldered...Thanks for the compliment.<br /><br />C5 and C6 are soldered directly onto the tone switch (see the second last photo). The capacitor value sets the tone.stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-9613748366988392262014-05-24T22:10:15.103-07:002014-05-24T22:10:15.103-07:00hey man this is one of the best instructed builds ...hey man this is one of the best instructed builds ive ever seen but I have one question...what is that C6 and C5 on the first pic? in the digram it looks like one unit but it is listed in your components list as "C5 and C6". what are these parts?<br />thanks Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-49113558632338346912013-08-22T23:15:52.581-07:002013-08-22T23:15:52.581-07:00Hi Justin,
Sorry, I can understand how this might...Hi Justin,<br /><br />Sorry, I can understand how this might be confusing at first. <br /><br />Firstly, there are two main types of capacitors you need to be able to distinguish between: electrolytic, and everything else. Electrolytic are the ones you usually see with a + and - sign. They are also sometimes drawn on circuits as a straight line and a curved line instead of two straight lines. <br /><br />In the case of this circuit, only C4 is electrolytic, although I see that it is not clearly labelled as such. In its case, the negative side would go to the ground track. The other (non-electrolytic) capacitors could be ceramic, mylar or some other material, and it really doesn't matter too much which one you get. Usually you just have to go with whatever you can source.<br /><br />As for voltage, just get something higher than the highest voltage that might go through them. Since this is a 9V circuit, you'll be fine getting capacitors rated at 25V or above. It is never a problem if they are rated at a higher voltage, although they tend to take up more space. <br /><br />Also, regarding tolerance, don't worry too much about that here. We're not working with components that have to be particularly precise.<br /><br />I hope that answers your questions, but don't hesitate to let me know if you need more info.<br /><br />Cheers,<br />Stustuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-1628030766777423072013-08-20T05:25:38.810-07:002013-08-20T05:25:38.810-07:00Hi, thanks for the circuit. I can't get anyone...Hi, thanks for the circuit. I can't get anyone in shops to help me spec the capacitors. You have only listed them in Farads but not their voltage, type, tolerance, and other features. No-one will help me guess and I can't read the text printed on the components on each photo. Would it be possible to specify details of each capacitor so I can order the same parts?<br />Thanks!<br />JustinAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-85366469620061529982012-12-13T19:27:40.531-08:002012-12-13T19:27:40.531-08:00Reading through these comments again I realise I m...Reading through these comments again I realise I made an error in my first comment. The tone switch is three position, double-pole. It's ON-OFF-ON, not ON-ON-ON. Sorry if that caused any confusion. Unfortunately I can't edit the comment, so have to correct it here.stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-73842129354031423882012-12-13T01:21:34.930-08:002012-12-13T01:21:34.930-08:00Hi Paul.
I admire your patience! Sorry you're...Hi Paul.<br /><br />I admire your patience! Sorry you're getting that buzz. The only times I've ever got something like that, it was from a badly screened guitar (I realise you've tried several here). The fact that you're upping the gain will make it all the more obvious, when usually it would've been hidden at normal levels. I don't know if maybe the bc109c is higher gain or something, but I do know that I'm not getting any noticable levels of buzz from mine. Do you have a 2N5088 or 2N5089 you can substitute?<br /><br />As for my switch wiring, the only difference is that I have put the LED wiring in the middle "column" instead of on the right. It doesn't make any difference though and it's more to make it easier for the wires to get to where they need to go afterwards.<br /><br />Can you try switching off other electrical devices in your room, like TVs/lighting, etc? I'm just wondering if you might be getting some electrical interference or something. Anyway, as mentioned previously, if you could take some close-up pictures of your circuit, I'd be more than happy to have a look. Don't give up whatever you do!stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-53515569133359603102012-12-12T00:05:22.878-08:002012-12-12T00:05:22.878-08:00Right, I've rebuilt it but using parts from a ...Right, I've rebuilt it but using parts from a better supplier and I have followed the build process to your examples on here and it sounds amazing but I'm still getting a buzz. All 4 grounds are soldered cleanly to the pot but I have noticed the buzzing disappears when the volume on the guitar is rolled off. I have tried various guitars, leads and amps but the result is the same. I have double checked the wiring but have found no faults. Also, from looking at other sites. connected to this, I have used a bc109c for a bit more gain. Do you think that may have anything to do with it? One other thing, I noticed your switch wiring differs to the "how to wire a stompbox" is there a reason for this?<br />Many thanks for your help and ive learnt a lot thanks to you :)<br />PaulAnonymoushttps://www.blogger.com/profile/05767587583227426184noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-76131586755940360572012-12-08T13:37:26.877-08:002012-12-08T13:37:26.877-08:00Hi again Stu,
Its stopped working (albiet, it work...Hi again Stu,<br />Its stopped working (albiet, it worked briefly)<br />I've decided to redo it but more spaced out on a veroboard but I was wondering what types of caps are you using? and do you have a picture of the circuit as you've built it as I'm sure my supplier hasn't given me the correct type of caps. For example, this is the 47uf that I was given.. http://www.ladyada.net/images/parts/47uf.jpg<br />Sorry to be a pain but I have a great big gap in my board waiting for this :)<br />Also, the negative coming from the board and going to the left lug of the pot. Is that joined to the rest of the earths??<br />Many thanks<br />Paul<br />Anonymoushttps://www.blogger.com/profile/05767587583227426184noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-31540086941389175632012-12-03T18:05:07.399-08:002012-12-03T18:05:07.399-08:00Hey Paul, it should be possible and it shouldn'...Hey Paul, it should be possible and it shouldn't be buzzing. The only thing I can think is that the power supply is a little dodgy, or maybe something isn't grounded right (remember that the ground on a pedal power supply is generally on the centre pin rather than on the sleeve). Did you have a look at this post? http://diystrat.blogspot.com/2009/06/buhow-to-wire-up-stomp-box-effects.htmlstuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-45159178213991647772012-12-01T16:30:46.031-08:002012-12-01T16:30:46.031-08:00Hi Stu
I've got the booster working! YAY! It w...Hi Stu<br />I've got the booster working! YAY! It was dodgy wiring. One thing I would like to do is have it powered via my 9v daisy leads rather than a battery. If this is possible, would I have to change the 100r resistor as I have tried it with a dc socket and it just buzzed like mad?<br />Thanks again<br />PaulAnonymoushttps://www.blogger.com/profile/05767587583227426184noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-14296421570345908372012-11-28T00:45:23.547-08:002012-11-28T00:45:23.547-08:00Well that certainly helps narrow it down. Make sur...Well that certainly helps narrow it down. Make sure you have joined all the grounds/earths together (input, circuit board and output). Still it doesn't explain the volume pot making no difference. Are you sure you haven't accidentally connected the wrong orange lead to the output? That's the only thing I can see that would explain totally bypassing the pot.stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-17297577782714348032012-11-28T00:37:31.035-08:002012-11-28T00:37:31.035-08:00Thanks for your reply Stu.
I haven't installed...Thanks for your reply Stu.<br />I haven't installed the switch or led yet as I'm trying the circuit out as its laid out in the original schematics. I plan to add them once the booster is working. I have noticed a lot of ground buzzing so I believe it could be the wiring. I will check it later and let you know.<br />Thanks again.Anonymoushttps://www.blogger.com/profile/05767587583227426184noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-30891706245661026782012-11-27T21:07:32.379-08:002012-11-27T21:07:32.379-08:00Hi Mc Huge. Is the LED coming on? Also, are you su...Hi Mc Huge. Is the LED coming on? Also, are you sure the switch isn't sitting at 90 degrees to what it should be? Apart from that all I can suggest is to check the wiring very, VERY carefully. It's almost always a simple error with one connection in the wrong place. If you want to take some clear close up photos of the top and bottom of the circuit board (and the switch) I'd be happy to have a look at them.stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-66731561533226737432012-11-27T09:37:31.886-08:002012-11-27T09:37:31.886-08:00Hi and thanks for posting this. I built it today a...Hi and thanks for posting this. I built it today and I'm not getting any affected sound. I tried it with and without the circuit but there is no difference. Even turning the pot has no affect.<br />Any ideas?<br />Thanks<br />Paul.Anonymoushttps://www.blogger.com/profile/05767587583227426184noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-54563526901677315802012-08-10T00:26:43.189-07:002012-08-10T00:26:43.189-07:00Hi Al,
Yes, that's correct. If you look closel...Hi Al,<br />Yes, that's correct. If you look closely at the photos, you'll see I soldered to the back of the pot (which makes electrical contact with the case). Usually, the negative of the input and output jacks touch the case in the same way, so this is another option. This time around I used jacks with plastic surrounds, so had to go with a different option, hence the pot.stuhttps://www.blogger.com/profile/02461220593169801487noreply@blogger.comtag:blogger.com,1999:blog-2534195963488802319.post-67880390301677861432012-08-06T11:34:48.659-07:002012-08-06T11:34:48.659-07:00Really great build, I'm going to give it a go ...Really great build, I'm going to give it a go his week. But just one noob question, where does the ground wire go to? Just soldered onto the inside of the case somewhere?<br /><br />Cheers!Alnoreply@blogger.com