tag:blogger.com,1999:blog-3033460626772757790.post5903051591160508899..comments2024-03-25T18:41:36.946+00:00Comments on Paul In The Lab: Devils Triangle Drone Synth Stripboard Veroboard LayoutDrStevensonhttp://www.blogger.com/profile/13901235832359203061noreply@blogger.comBlogger84125tag:blogger.com,1999:blog-3033460626772757790.post-27373402649991223622023-08-25T14:21:08.807+01:002023-08-25T14:21:08.807+01:00Hi! Thanks a lot for sharing this, is it possible ...Hi! Thanks a lot for sharing this, is it possible to have a picture of the pcb build to understand how the pota are connected? Thank you :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-9854477933717297972023-02-02T21:17:59.271+00:002023-02-02T21:17:59.271+00:00Hi Paul, Thank you for this design. It is exactly ...Hi Paul, Thank you for this design. It is exactly what I wanted to build for my project. <br />I have put it together and I am having an issue with one of the 3 drones. The second one. The output is in a higher range (in pitch) compared to the other 2. <br />Do you know what might be causing this? <br />My soldering skills are not great so I am quite sure there might be something wrong there. I have run the blade along the lines and I can't see anything that's making contact at the moment. <br /><br />Thank you again. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-21185937881004048942022-11-11T21:48:43.842+00:002022-11-11T21:48:43.842+00:00hello people from beyond the other side of reality...hello people from beyond the other side of reality. out here we are stoned...ejaculate <br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-12135223989396686992022-09-26T03:26:48.876+01:002022-09-26T03:26:48.876+01:00what would happen if i changed r9 and r14 to 100k ...what would happen if i changed r9 and r14 to 100k ? thanks ! i built this into a little suitcase with some lfo's , a ring mod , a delay , filter etc . so much fun ! i notice one of the osc on mine the picth is higher and also it is lopuder . i am hoping to balance the volumes of all three osc , this is what the first question relates to . thank you . is one of the pitchs supposed to be higher and louder ? thanks . Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-20896743191057999462020-12-14T22:00:09.078+00:002020-12-14T22:00:09.078+00:00Hi Paul, thank you for this project.
I used your ...Hi Paul, thank you for this project. <br />I used your oscillator layout design from this project to develop my drone module in eurorack 4HP size. It sounds great even with only two oscillators. I've ordered some pcb's at pcb factory, and then have some spare. Two questions - how to credit your design on my modules when I would like to show them on my instagram, solder them for my friends, and maybe finally sell some of them on etsy? And finally - I would be very proud if you will add my project to your page at "things that others built" as this is my first smd pcboard drawn by me and soldered with my soldering iron in my life :-)<br />Best regards,<br />PeterMizofonia_noisehttps://www.instagram.com/mizofonia_noise/noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-80609894333451534982018-02-20T10:13:34.791+00:002018-02-20T10:13:34.791+00:00Hi Paul. Thanks for this synth, I like so much thi...Hi Paul. Thanks for this synth, I like so much this kind of sounds. <br />(and sorry for my bad english).<br />I made this project. Switch 2 and 3 is ok (I have sound, and potentiometers 2 and 3 can modulate it). But when switch 1 is on, no sound, even if I modulate with potentiometer 1. <br />When switches 2 and 3 are on, I have sound of 2 oscillators and I can modulate.<br />But when all switches are on (1, 2 and 3), there is no sound (only if I modulate potentiometer 2 and 3 high, when I modulate potentiometer 1 high, I don't know how to describe the sound, as if the sound has "no energy" and then it's silent). I double-checked all part of the circuits...8uhttps://www.blogger.com/profile/11975339379280157037noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-3555349974230187122018-02-05T03:32:37.800+00:002018-02-05T03:32:37.800+00:00Hi Paul.
First off, thanks for the awesome projec...Hi Paul.<br /><br />First off, thanks for the awesome project.<br /><br />I have everything working, but I'm having a very frustrating crackle type sound when 2 or more oscillators are turned on. It is also not a constant sound, but shows up what seems like at the peaks and valleys of the waveform (though I don't have an oscilloscope to actually check).<br /><br />I can hear it very very slightly (maybe) when one oscillator is turned on, but like I mentioned it is very apparent when 2 or 3 of them are on.<br /><br />Any suggestions of which components could be the culprit?<br /><br />Thanks so much for the help!Josh Finkleahttps://www.blogger.com/profile/01700368882798360182noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-15292028919177704482017-12-21T03:37:30.343+00:002017-12-21T03:37:30.343+00:00Have you done a sanity check on the outputs of eac...Have you done a sanity check on the outputs of each of the three oscillators? They should all be triangle waves.Matthttp://deity.co.nznoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-63154417445018729682017-12-20T06:47:36.335+00:002017-12-20T06:47:36.335+00:00Hi Paul, I've created a new stripboard layout ...Hi Paul, I've created a new stripboard layout as I wanted the pots on the board itself. I've built one oscillator and the mixer thus far. Getting a nice triangle wave from the oscillator, but am getting this from the mixer: https://imgur.com/whXAveT<br /><br />Is this what you expect? It sounds okay. Matthttp://deity.co.nznoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-84350327933164892532017-03-08T10:53:17.072+00:002017-03-08T10:53:17.072+00:00I've done two of these now and the same each t...I've done two of these now and the same each time :- I get one single tone rather than three. The pitch pots still have an effect but the third one hardly does anything and there is also a very slow note modulation of up to an octave that sometimes creeps in. I've triple checked all the components and put a knife in between all the tracks, etc . All the voltages suggested seem to check out. Any help much appreciated. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-43025653652371353532016-12-20T13:46:44.621+00:002016-12-20T13:46:44.621+00:00I also interested in this issueI also interested in this issueKoskohttps://www.blogger.com/profile/12097280805100753401noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-19231757113776941232016-11-15T19:10:23.150+00:002016-11-15T19:10:23.150+00:00Hi there! Is there any way to add the cv output, t...Hi there! Is there any way to add the cv output, to use it with sequencer?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-55259776941638617962016-11-12T03:26:33.409+00:002016-11-12T03:26:33.409+00:00This comment has been removed by the author.spectremanhttps://www.blogger.com/profile/00125547691998772709noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-43020135345876850842016-07-25T17:07:59.827+01:002016-07-25T17:07:59.827+01:00Would you be able to post some internal shots? I k...Would you be able to post some internal shots? I know i have this a little messed up because I'm not getting any sound. And i wanna see what it should look like. I'll post pictures when i get home but. To describe what i don't know what to do.<br /><br />Is it OK if i don't use a 9v battery and instead use a power supply like you could a guitar pedal? And how do i wire the output up? I want to use a standard mono jack that you can use with a guitar cable and only one write connected to it doesn't seem right to me but i might be wrong. Any help would be very appreciatedAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-81462642181184049422016-07-25T14:42:35.074+01:002016-07-25T14:42:35.074+01:00Master Volume pot wiring would be: Output of circu...Master Volume pot wiring would be: Output of circuit to lug 3 of a 100kA pot, lug 2 to output jack, lug 1 to ground ?<br /><br />Thanks.Dannoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-67353420723893927362016-07-12T11:49:08.441+01:002016-07-12T11:49:08.441+01:00no, the out is going to your amplifier/speaker etc...no, the out is going to your amplifier/speaker etc. GND goes to battery negative DrStevensonhttps://www.blogger.com/profile/13901235832359203061noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-31070413437371618982016-07-12T07:52:46.361+01:002016-07-12T07:52:46.361+01:00Is the output going together with battery minus or...Is the output going together with battery minus or the artificial ground build by the two 10k resistors?Wolfganghttps://www.blogger.com/profile/06172055580093876379noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-63456030399303046612016-05-26T17:19:40.659+01:002016-05-26T17:19:40.659+01:00Hi. I've been trying to build this. Noob quest...Hi. I've been trying to build this. Noob question -- I've got it all soldered up, but I'm getting no output. This is my first attempt at a project like this, so I'm guessing something has gone wrong somewhere. Any hints for debugging? Are there specific places I should be testing for voltage/signal? <br /><br />Thanks! Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-85164020352134851342016-05-06T09:22:20.174+01:002016-05-06T09:22:20.174+01:00Hmm..and what's the gray pot, with the black d...Hmm..and what's the gray pot, with the black dot above the LED? i would like to attach an master volume pot, but i don't know how, sorry for my rusty english, and lack of electronic skills.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-37869900246178297492016-05-05T23:24:29.992+01:002016-05-05T23:24:29.992+01:00there isn't onethere isn't oneDrStevensonhttps://www.blogger.com/profile/13901235832359203061noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-25909773612729761022016-05-05T23:09:14.371+01:002016-05-05T23:09:14.371+01:00Sry for that noob question, where's the Volume...Sry for that noob question, where's the Volume Pot?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-18992594203531216412016-02-22T03:51:36.658+00:002016-02-22T03:51:36.658+00:00Cranked one out over the last few days. Was able t...Cranked one out over the last few days. <a href="http://imgur.com/yVx8lRg" rel="nofollow">Was able to squeeze it into a 1590 case!</a> Endless fun with reverb and distortion. Thanks!Alexanderhttp://acadianfx.tictail.com/noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-81110488816386975472016-02-20T00:34:06.663+00:002016-02-20T00:34:06.663+00:00Has anyone built one of these using ribbon potenti...Has anyone built one of these using ribbon potentiometers? I think that would be insanely fun.Alexhttps://www.blogger.com/profile/09786710814422090451noreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-65963838739997252512016-02-16T00:56:33.357+00:002016-02-16T00:56:33.357+00:00Hey Paul, great synth, I've put one together a...Hey Paul, great synth, I've put one together and have been trying to add an LFO control for volume modulation. I build this LFO,<br /><br />http://www.casperelectronics.com/images/finishedpieces/speak-n-spell/Speak-n-Xbending/LFO%20schematic2.jpg<br /><br />But have been struggling to hook them up. I can wire the LFO output (labelled C on the circuit) to where the Oscillators go into the Buffer. That seems to work fine for my single oscillator version, but with three oscillators the LFO only seems to kick in at very specific volume/LFO depth combinations -- you mentioned you had plans of adding an LFO, could you perhaps shed any light on my situation or offer another LFO circuit that would work better? Cheers.Philhttp://unmaintained.comnoreply@blogger.comtag:blogger.com,1999:blog-3033460626772757790.post-49309339259327137572015-12-25T06:21:45.857+00:002015-12-25T06:21:45.857+00:00I mean, sounds good either way, but the output as ...I mean, sounds good either way, but the output as shown is not a purely triangle waveform (with only one oscillator turned on).Walterhttps://www.blogger.com/profile/10817401124899627427noreply@blogger.com