tag:blogger.com,1999:blog-6847048658257278783.post9135319687090428141..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Roger Mayer OctaviaIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger37125tag:blogger.com,1999:blog-6847048658257278783.post-26658202019906758442021-10-31T23:38:01.360+00:002021-10-31T23:38:01.360+00:00Has anyone got a schematic for this circuit?Has anyone got a schematic for this circuit?the_codushttps://www.blogger.com/profile/10759676007449426716noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-41263660127570100342021-05-26T21:09:54.520+01:002021-05-26T21:09:54.520+01:00I build it and has no sound comming out of the ped...I build it and has no sound comming out of the pedal. :(Jediashttps://www.blogger.com/profile/14365324902105055388noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-60595106621431395252021-05-26T05:14:09.652+01:002021-05-26T05:14:09.652+01:00did you solved it? Same problem heredid you solved it? Same problem hereJediashttps://www.blogger.com/profile/14365324902105055388noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14079519030310610672021-05-19T00:52:19.785+01:002021-05-19T00:52:19.785+01:00Any voltage readings for transistors?
Thanks!Any voltage readings for transistors?<br />Thanks!IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-12974122611195613322019-02-03T03:27:53.238+00:002019-02-03T03:27:53.238+00:00First build not going well. No signal going direc...First build not going well. No signal going direct to amp. When going into a fuzz face there is a weak signal. <br /><br />Battery 8.5V<br />Circuit board +lead 8.5V<br /><br />Q1 E=7.5V B=7.0V C=3.0v<br /><br />*Q2 E=0V B=0V C=8.1*<br /><br />Q3 E=2.5V B=3.5V C=6.0V<br /><br />Q4 E=3.4V B=4.0V C=8.4<br /><br />D1 A=1V K=0.7V<br /><br />D2 A=1V K=0.7V<br /><br />D3 A=8.6V K=8.5Vjlohttps://www.blogger.com/profile/14874506045097212427noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-14610482196733448132017-02-05T14:49:24.757+00:002017-02-05T14:49:24.757+00:00Lovely pedal.Lovely pedal.0friendsrecordingshttps://www.blogger.com/profile/17354056201651891355noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50858469701632844022015-09-29T16:00:21.578+01:002015-09-29T16:00:21.578+01:00In other words.. DMM to DC voltage, black lead to ...In other words.. DMM to DC voltage, black lead to common ground (the one that all of those circuits use) and the red lead to each circuit's +9V connection. If all those show 9V, then one of the circuits isn't working right after the polarity protection diode.<br /><br />Or. If the supply just died from too much current draw. I've seen that happen too. But only with wall warts that are already deemed as suspicious. I'm still recommending a battery for test purposes. Or a lab supply with quick reset fuse. You can guess which one is cheaper..<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84877641019000223472015-09-29T15:56:36.328+01:002015-09-29T15:56:36.328+01:00You should measure to see if the the supply voltag...You should measure to see if the the supply voltage gets where it should. You most likely have a short in there somewhere, so measuring your power supply is strongly recommended too.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-46270760658593429392015-09-29T15:31:31.230+01:002015-09-29T15:31:31.230+01:00I built this one and put in the same box as the ts...I built this one and put in the same box as the ts808 from this site and they both work great and share a single power jack.<br />But when i tried to build another one and share power with a 3rd circuit I got total silence.<br />I checked it for solder bridges and eventually built a new board but I still get silence. The other two effects in the box (rc booster & sd-9) work great.<br />Can anybody tell me what I have missed? I feel pretty stupid now.Anonymoushttps://www.blogger.com/profile/13530728442708425843noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-23679651215058331582015-08-19T04:18:05.095+01:002015-08-19T04:18:05.095+01:00You can try just switching one of the diodes out w...You can try just switching one of the diodes out with an SPDT witch which will cut the octave (I think).Anonymoushttps://www.blogger.com/profile/06201678011261105677noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-58223650702196517782015-08-18T17:30:40.210+01:002015-08-18T17:30:40.210+01:00hey guys but wats about the octave on/of switch? I...hey guys but wats about the octave on/of switch? I saw somebody did so, and it also sounds great as a simple fuzz. thanks for any idea.Danhttps://www.blogger.com/profile/15130438656970318139noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-60555683565487820252015-08-18T17:27:56.020+01:002015-08-18T17:27:56.020+01:00thanks )thanks )Danhttps://www.blogger.com/profile/15130438656970318139noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50491298986506770072015-08-10T18:29:06.202+01:002015-08-10T18:29:06.202+01:00well without having a schematic for the new one wi...well without having a schematic for the new one with a tone control what you can do is use the BMP Tonestack w/ LPB1 posted on the site,<br /><br />http://tagboardeffects.blogspot.com/2013/08/bmp-tonestack-w-lpb1.html<br /><br />you'll place this at the end of the octavia, by running its output to the input of the tonestack, then the tonestacks output goes to the switch. the reason for the lpb-1 is that any passive tonestack you add will take away from the output of the effect, so you use the lpb as a gain recovery stage. so the trimmer on the board will be set to maintain the same level of output as you had without the tonestack.Zachhttps://www.blogger.com/profile/00044917566185720896noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47485782646960421082015-08-10T08:46:19.957+01:002015-08-10T08:46:19.957+01:00Hi, Does somebody know how to add a tone control h...Hi, Does somebody know how to add a tone control here, like in the newer version of roger mayer octavia?Danhttps://www.blogger.com/profile/15130438656970318139noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-38633932311583545222015-06-06T18:17:12.827+01:002015-06-06T18:17:12.827+01:00Like this one a lot! Great allround fuzziness and ...Like this one a lot! Great allround fuzziness and loud. Still have a slight issue with my build with intermittent loss of signal but have only just finished so will debug in a sec. I know have 32 pedals needing boxed and not enough boxes..aaah. I like to do a complete build before i box making sure all the wires are the right length so i can just slot them in to my prepared box. This also means i can connect to a spare slot in my rig before boxed and swap with another when i fancy. My obsession is growing.Hozy31https://www.blogger.com/profile/16714771534041521767noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-78524665825846805682015-05-18T14:55:07.000+01:002015-05-18T14:55:07.000+01:00Has anyone tried replacing mpsa13 with mpsa12 or ...Has anyone tried replacing mpsa13 with mpsa12 or mpsa14? How was the results? Local shop carries mpsa12/14 but no mpsa13 so thought I would give one of those a try.FkmBlogshttps://www.blogger.com/profile/03662406449542416451noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-45431914937251495452015-04-05T23:21:22.301+01:002015-04-05T23:21:22.301+01:00Just tried posting this but I don't see it so ...Just tried posting this but I don't see it so I'm reposting -- sorry if I've duplicated the original. I finished building this pedal earlier using Mirosol's layout and I was completely jazzed to hear the results -- pedal sounds amazing to my ears! One quick question I have though is in regard to the potentiometers - both the Kallas and Sabro layout talk about grounding Drive 1 and Vol 3, and soldering Drive 2-3 together into the same strip hole. Was I supposed to do something analogous with the Mirosol layout? To my ears, the pedal is functioning properly, but I just wanted to be sure. Only thing is that it's kind of quiet and I have to turn the amp up a bit, but I'm guessing that problem is normal and would disappear if i ran the Octavia into a TS or FF. Anonymoushttps://www.blogger.com/profile/16573258215760692097noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26849126981513432532015-01-31T20:42:46.853+00:002015-01-31T20:42:46.853+00:00Ok, I've got a little bit of an issue with thi...Ok, I've got a little bit of an issue with this build. Not sure what is going on...<br /><br />I have guitar signal coming through just fine...it's pretty clean though. It's not very fuzzy at all. When I crank up the gain it gets fuzzier but when the pot is maxed there's no signal at all. I've checked for solder bridges and cold solder joints...I'm pretty sure they are all good (I'm not 100% but they all look pretty decent). Could it be a faulty component? Cold solder joints? Solder bridges?Eric Evanshttps://www.blogger.com/profile/17898798930245655417noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-90544328889530984782015-01-06T23:07:57.980+00:002015-01-06T23:07:57.980+00:00Finally got this one to work. It's a little no...Finally got this one to work. It's a little noisy (picking up some serious radio and just overall noise when the volume on my guitar is up. Might be the pots. I had to resolder a few things. Might have done some damage). <br /><br />I used JohnK's layout. Couldn't get it to work all day and was frustrated since this is my third time trying to build this pedal. Then I realized I'm an idiot. I didn't read the part about grounding drive 1 and volume 3 *doh* Works like a charm now.<br /><br />Anyway, very happy with this one. I just love that crazy sound you get when you roll the guitar's volume back ala Band of Gypsys. Thanks guys! Anonymoushttps://www.blogger.com/profile/03551370005336623785noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-4519005557939706872014-12-18T18:00:17.351+00:002014-12-18T18:00:17.351+00:00This, the transformerless version isn't anythi...This, the transformerless version isn't anything like Tycobrahe of Voodoo Lab Octavias. For that function, check how it's done in fOXX Tonemachine.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-81241469103506256312014-12-18T17:59:10.305+00:002014-12-18T17:59:10.305+00:001) No. It should not be low.
2) No. I've built...1) No. It should not be low.<br />2) No. I've built a few of these and never matched anything.<br />3) Sounds like a possible bad cap or one of the electrolytics in reverse. Start by checking those and then the usual suspects, bad joints, solder bridges, misplaced component leads etc.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-65925960992499544582014-10-15T14:38:14.155+01:002014-10-15T14:38:14.155+01:00Hi,
This has been done the "Roger Mayer Octa...Hi,<br /> This has been done the "Roger Mayer Octavia, rev 1. layout by herald sabro,schem by Phillip Bryant! but it doesn't come up in search? maybe tags missing.<br /><br />Thanks again though!JaSoNhttps://www.blogger.com/profile/10978992561884232646noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-38159979115330746352014-10-06T11:22:34.265+01:002014-10-06T11:22:34.265+01:00Anyone.......Anyone.......Anonymoushttps://www.blogger.com/profile/12930656242093572120noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-68149377753875439422014-09-28T22:37:08.891+01:002014-09-28T22:37:08.891+01:00Is there any way to add an octave off switch? Like...Is there any way to add an octave off switch? Like some of the Tycobrahe clones out there.Anonymoushttps://www.blogger.com/profile/12930656242093572120noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-54037637464658776072014-08-16T03:35:11.280+01:002014-08-16T03:35:11.280+01:00+1 this is awesome! Thanks guys!+1 this is awesome! Thanks guys!Anonymoushttps://www.blogger.com/profile/07929825378982458584noreply@blogger.com