tag:blogger.com,1999:blog-6847048658257278783.post2580753387612901132..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Frantone VibutronIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger71125tag:blogger.com,1999:blog-6847048658257278783.post-8985871748620841752021-04-29T15:31:35.768+01:002021-04-29T15:31:35.768+01:00for anyone having issues with ticking i found that...for anyone having issues with ticking i found that a non polar 1uf cap between pin 8 and 9 of ic3 completely eliminated it. got the idea here: https://sites.google.com/site/flofxdiy/deticking-lfo <br /><br />theres some useful stuff for debugging lfo ticking in general to.Alberthttps://www.blogger.com/profile/00842911664178009651noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-27151862500709864002021-04-21T14:07:04.133+01:002021-04-21T14:07:04.133+01:00if its of use to anyone in most frantone pedals th...if its of use to anyone in most frantone pedals the 10r 1w resistor is connected directly to the power jack along with an 11v zener diode, zener positive to negative lug and zener negative to positive lug. <br /><br />providing polarity protection, cureent surge protection and excessive voltage protection all in one easily replaceable crowbar.Alberthttps://www.blogger.com/profile/00842911664178009651noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-20222605487964038012018-02-17T16:51:30.360+00:002018-02-17T16:51:30.360+00:00I had a bit of a job getting this one going (wired...I had a bit of a job getting this one going (wired the switch incorrectly first time round). The square wave sounds good but the other settings have virtually no effect whatsoever, any hints?Nickhttps://www.blogger.com/profile/09916364137850730031noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1366382851261559932016-04-14T01:32:27.698+01:002016-04-14T01:32:27.698+01:00I have the same problem from the beginning. Used ...I have the same problem from the beginning. Used a scope to check the waveforms and they are good. As usual for this chip, the square is much higher amplitude than the sine or triangle. Interestingly, the square does not seem to distort the audio signal, probably since it is just turning the MOSFET on or off. If I drop the bias on the MOSFET to shut it off, the guitar signal going through both halves of !C1 is equally clean. Everything works exactly like it is supposed to except for some distortion with the sine or triangle driving the MOSFET. I also replaced the MOSFET and hear no improvement. The breakup is not to bad when the blend pot is less than halfway, but is quite noticeable when more of the vibrato signal is present. Since the MOSFET is just acting as a variable shunt to ground I find this confusing. The MOSFET has to be injecting the distortion. Never had any ticking or other problems. Any idea of what could be wrong?Anonymoushttps://www.blogger.com/profile/11857737511905264828noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-59473009579299385222015-10-13T03:38:45.801+01:002015-10-13T03:38:45.801+01:00i think i go for a rotary switch, i like it origin...i think i go for a rotary switch, i like it original :)<br />but... as far as i can see it seems like switching will be SW5 to SW1, SW5 to SW3 and SW5 to SW6 or am i wrong? leg 2, 3 and 9 on IC.<br /><br />pedal sound great on YT vids, i have high hopes for this one :)Meekhttps://www.blogger.com/profile/15435197202468367637noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-81939939388706187552015-04-19T08:17:59.240+01:002015-04-19T08:17:59.240+01:00hi all ..aft a lovely 2 months with this pedal its...hi all ..aft a lovely 2 months with this pedal its suddenly beginning to distort the signal if i play a chord or even 2 notes together .. like input overload .. i have a audio probe .. n found the signal clean till the 2n7000.. and breaking up aft . have replaced al IC s and mosfet .<br />its more pronounced at full depth <br />any help .... pls :(<br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26914795629576135192015-03-29T20:40:23.701+01:002015-03-29T20:40:23.701+01:00Been over this build many times. Maybe someone her...Been over this build many times. Maybe someone here will know what is up. I'm getting a significant cut to the signal as well as tone cut to the highs. All functions are working with the trimmer adjusted just right. The switches all work. The one thing that seems a little weird is the 100k from ic2 output is dropping 3/4s of the signal on the way to the gate on the mosfet. Any ideas on where to look? I have tried swapping out the mosfet and ics and have the same problem. Thanks in advance, i will keep looking into it in the mean time<br />Anonymoushttps://www.blogger.com/profile/04857032686736788897noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-89179982772856693322015-02-13T09:57:19.780+00:002015-02-13T09:57:19.780+00:00Thanks for this info HiteshThanks for this info HiteshIvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11206553528158550192015-02-12T18:32:51.942+00:002015-02-12T18:32:51.942+00:00yeah .. do let kno how it turns out.
u may need a ...yeah .. do let kno how it turns out.<br />u may need a smaller cap , i went up in capacitance till the ticking was gone n i believe in your make its softer as it only shows on Sq. wave.<br /><br /><br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-21764998846036346052015-02-12T17:30:47.066+00:002015-02-12T17:30:47.066+00:00That's some GREAT news! I know what I'll b...That's some GREAT news! I know what I'll be doing this weekend ✅<br />I'm really looking forward to get rid of that clicking sound and those fine tune pots look like a good mix.The_Peddlerhttps://www.blogger.com/profile/07267867702463011607noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-35219923518013233332015-02-06T16:13:19.351+00:002015-02-06T16:13:19.351+00:002 new things i added ..
1 taking the tempo led so...2 new things i added ..<br /><br />1 taking the tempo led source form ic2 pin 6 gives u tempo and waveform as the led swells and dips .. even the rev gate . IT is INV of audio signal but works.<br /><br />2 to get the max out of each waveform i used 3 VR s- 100k each, through the rotary switch ( wave select switch) to set each to where they respond best. gives better response to the sq wave .<br />cheers<br />hitech<br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87109480739574764442015-02-04T15:56:18.435+00:002015-02-04T15:56:18.435+00:00hey ,
update...the trem still had a clicking even ...hey ,<br />update...the trem still had a clicking even after the last changes...soft but audible when amplified loud ..<br />i found removing the 10k between IC3 pin9 and IC2 pin 7 helped a lot..not sure what the resistor was for but it didnt change the sound or functions .. if anyone can explain its purpose please..<br />then a 4.7u cap frm IC3 Pin 9 to Gnd absolutely removed the clicking ,, even on sq wave and the rev gate effect... found no loss of highs in the tone. keeping it this way for now.<br />any thoughts...<br />hitechHitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-4479347334659799032015-01-31T15:53:07.287+00:002015-01-31T15:53:07.287+00:00Thanks for the reply IvIark. I have dropped the pr...Thanks for the reply IvIark. I have dropped the project altogether and talked with the person to build another trem model, which worked as always, from the first try ...oh well :) Thanks anyway! HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87485168941437459462015-01-30T10:00:13.812+00:002015-01-30T10:00:13.812+00:00Are you sure your 8038's are ok? People have ...Are you sure your 8038's are ok? People have obviously had success with this build so if you're had a couple of failures, the 8038s are a common denominator and a very likely cause of the problemIvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-63559610891164400482015-01-29T16:48:06.484+00:002015-01-29T16:48:06.484+00:00Thanks for the reply...Unfortunately, that did not...Thanks for the reply...Unfortunately, that did not solve anything. The LFO is present,etc...ticking. Still a dry sound.Oh well, I'll let this one go and that's it. Will build another one for the man. Thanks.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1192575449096798622015-01-29T16:45:18.015+00:002015-01-29T16:45:18.015+00:00This comment has been removed by the author.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-16822558153082218382015-01-29T14:29:56.143+00:002015-01-29T14:29:56.143+00:00During the rebuild whle trying other ICs i noticed...During the rebuild whle trying other ICs i noticed the ticking is on from 8038 even without any other Ic present on board replaced the 8038 and still same .. maybe IC is iffy..?<br /><br />razvan .. my trim is set about 85 depending how measure ..and the pot reads 97k total.<br />try an ext 100k to check or a larger value trim if u have..but well below 85 it still has effect only very softHitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11958183838236486282015-01-29T14:16:05.712+00:002015-01-29T14:16:05.712+00:00hey , thanks peddler ..went through yr check list ...hey , thanks peddler ..went through yr check list .n got it going but in a diff way .<br />1. IC 1 is AD822AN , IC 2 & 3 are the same as yours Mosfet 2N7000 D18<br />2. no short between input and IC1 Pin 3<br />3. Rearranging wires helped ..but still ticking ..just bit softer<br />4 same with batt or powersupply(fuel tank)<br /><br />then i rebuilt it with sockets to change ICs and used shelded wires as u mentioned<br />nice one .. didnt kno of that bef .. thank you<br /><br />then between various tries to reduce clicks ... i put an led from IC3 Pin 9 ..and the clicking is negligible .. sounds great and useable now. also shows the tempo in blinks...ofcourse that kills the Sq wave. so i setup a rotary switch such that on Sq wave the the led goes off ...it clicks but on Sq wave its harder to hear ..<br /><br />I also did the IC3 pin 3 to pin 9 short.. pseudo rev gate on a spdt... killer <br /><br />last check tomo with other pedals in chain ..mainly gain type .. <br /><br />thanks all for your work and help <br />Hitech<br /><br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-92109502766281553902015-01-29T07:42:26.193+00:002015-01-29T07:42:26.193+00:00Hmm, i tried fiddling with it in both builds, it d...Hmm, i tried fiddling with it in both builds, it does something, but still no "wet". I have a theory: could it be the fact that(out of curiosity i measured the trimpot, it's the most common cheapo blue/white combination trimpot), the trimpot has 82-88-89k max, and maybe, just maybe, the sweet spot would need let's say an exact 100K measured trimpot, maybe that works ast 92-95K exactly...since mine is just 82-88K to start with, the values are"not there". Could this be it?HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-91475476135835739152015-01-29T03:58:01.102+00:002015-01-29T03:58:01.102+00:00thanks Peddler , ill try through those.
Razvan .....thanks Peddler , ill try through those.<br /><br />Razvan ... i had the same till i adjusted the trim pot ..then all the effect(wet) came alive.<br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-87013798410390909352015-01-28T13:14:02.424+00:002015-01-28T13:14:02.424+00:00Hey, could you please give me some pointers what t...Hey, could you please give me some pointers what to do with my build? Built it TWICE from scratch a second time around...nothing works,as the first time. I've wrote something a few posts up maybe that is enlighting. Tnx!HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-70044521083101841572015-01-28T02:45:02.980+00:002015-01-28T02:45:02.980+00:00Some ideas to try (in order):
1) These are the ex...Some ideas to try (in order):<br /><br />1) These are the exact part numbers I used;<br />IC1: TLC2262IP<br />IC2: UA741CP<br />IC3: ICL8038CCPD<br />MOSFET: 2N7000-D46<br /><br />2) Check for a short between INPUT and IC1 PIN3<br /> <br />3) Try to rearrange wires away from any 9V areas and all board components - helps with LFO issues sometimes. I always use shielded cables from INPUT to board and from board to OUTPUT<br /><br />4) Try it with a battery vs. with a wallwart<br /><br />5) As mentioned in a earlier post, the key for getting this to spark was fine-tuning the trimpot<br /><br />I still get a slight LFO tick but only when selecting square wave. Of all my pedal builds, this is probably my favorite one. Incredible sounds! After building it, I've spent all my available peddle-building-time working out some mods for this one including different waveform outputs. Stay tuned.The_Peddlerhttps://www.blogger.com/profile/07267867702463011607noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-19329140226646775612015-01-27T20:55:12.188+00:002015-01-27T20:55:12.188+00:00hey guys.. ive just fin this build .. it all works...hey guys.. ive just fin this build .. it all works as said but the lfo is quite audible . any one else face this ? or suggest a way to remove that noise . could it be - the ic1 i used AD822 instead of TLC2262 . its supposed to be a proper pin to pin replacement<br />appreciate any help <br />thanks<br />HitechDhttps://www.blogger.com/profile/03186993344281102676noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-27850590960081979892015-01-20T17:06:25.199+00:002015-01-20T17:06:25.199+00:00This is starting to get ridiculous...never should ...This is starting to get ridiculous...never should have doubted myself. IT does exactly like the first build..exactly, the LFO tick is heard, all the knobs do something, the switches modifies the speed/signal accordingly in the ticking...but still a dry sound. Am i missing something? It's clear to me now that i did nothing wrong at the circuit,because it is identical, and i made it with a fresh start alltogether.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-89387985862337872392015-01-20T17:06:08.328+00:002015-01-20T17:06:08.328+00:00This comment has been removed by the author.HGE Contraptionshttps://www.blogger.com/profile/13124050879741157587noreply@blogger.com