tag:blogger.com,1999:blog-6847048658257278783.post7077153754830492804..comments2024-03-29T01:36:12.851+00:00Comments on Guitar FX Layouts: Ibanez TS808 with Bass ControlIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger56125tag:blogger.com,1999:blog-6847048658257278783.post-26635344609786682292021-11-14T17:30:33.731+00:002021-11-14T17:30:33.731+00:00hi,
I've built it but haven't tried (cabl...hi, <br />I've built it but haven't tried (cables are not in place yet)<br /><br />could anybody point me to some drawing if this "bass pot addition mod" schematic-wise?<br />or just describe it with words in terms of connections? :) :) <br />I'd really like to see the schematic of this...j-peehttps://www.blogger.com/profile/06075769174607916244noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-30318754577402173472021-06-28T14:51:09.252+01:002021-06-28T14:51:09.252+01:00hi,
what do you think?
as to that 39nF,
would ...hi, <br /><br />what do you think? <br /><br />as to that 39nF,<br />would a multilayer ceramic be good, or we should stick to film?<br /><br />also, as to the value,<br />would 44nF (22+22) or 37 (22+15) be good? <br /><br />+1:<br />as to the 20nF at the input, I guess 22nF will be okay, or should I use 2x 10nF ? :)<br /><br />PS:<br />yes, I'll try all these out...<br />but with some knowledge -- is the 39nF in the signal path or not? how does that filter work? -- one doesn't have to test blindly, hence my questionsj-peehttps://www.blogger.com/profile/06075769174607916244noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-7876526507797597092021-01-20T18:34:44.489+00:002021-01-20T18:34:44.489+00:00Can't say this one worked out for me.
Treble k...Can't say this one worked out for me.<br />Treble knob is inverted, treble 1 + 2 go tegether and 3 goes alone, wich is an easy fix.<br />Aside from that the volume is so high the second stage op-amp starts oscilating if you crank it up past 12 o'clock.<br />Any values I can swap out to tame this and make it less loud and prone to oscilation? About 50% volume would be very useable.Unknownhttps://www.blogger.com/profile/15034541094911745425noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-6291397445775321852021-01-06T14:19:07.414+00:002021-01-06T14:19:07.414+00:00This comment has been removed by the author.E-Chanhttps://www.blogger.com/profile/15512364356718575974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52620179764895271332021-01-06T14:08:23.795+00:002021-01-06T14:08:23.795+00:00This comment has been removed by the author.E-Chanhttps://www.blogger.com/profile/15512364356718575974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-13507469035375801712021-01-06T11:20:05.774+00:002021-01-06T11:20:05.774+00:00This comment has been removed by the author.E-Chanhttps://www.blogger.com/profile/15512364356718575974noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-1873534290639206552020-06-13T22:29:13.297+01:002020-06-13T22:29:13.297+01:00Timmy version:reverse link treble pot. Treble 1-2...Timmy version:reverse link treble pot. Treble 1-2, drive2-3 & treble3 Anonymoushttps://www.blogger.com/profile/08450447062175706359noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-39487768261378163272019-05-15T23:47:42.886+01:002019-05-15T23:47:42.886+01:00Use a pot with reverse logarithmic taper ( 50k C )...Use a pot with reverse logarithmic taper ( 50k C )Mr.Baiserhttps://www.blogger.com/profile/11045675646569701854noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-4203542559760657902019-01-26T19:30:52.260+00:002019-01-26T19:30:52.260+00:00I made the one with the Timmy Bass and Treble cont...I made the one with the Timmy Bass and Treble controls and only at the end of the bass pot's travel does the bass come into effect.<br />It's like 90% of the pot does nothing.<br />Any ideas what I should do?Unknownhttps://www.blogger.com/profile/15034541094911745425noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-64720964101024790612019-01-26T19:29:56.277+00:002019-01-26T19:29:56.277+00:00sdfgsdfgUnknownhttps://www.blogger.com/profile/15034541094911745425noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-29779430993148756272018-10-12T16:17:24.541+01:002018-10-12T16:17:24.541+01:00Hey Mark, Do you happen to know what the JHS stron...Hey Mark, Do you happen to know what the JHS strong mod is for an 808? I have an 808, and my friend has a Bonsai, and the strong mod is by far the best one on that Bonsai. I'd love to do the mod myself, since I have a drawer full of parts.Mojo321https://www.blogger.com/profile/09952527923804212583noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-73583290423670954282018-10-12T16:15:41.877+01:002018-10-12T16:15:41.877+01:00Hey Mark, Do you happen to know what the JHS stron...Hey Mark, Do you happen to know what the JHS strong mod is for an 808? I have an 808, and my friend has a Bonsai, and the strong mod is by far the best one on that Bonsai. I'd love to do the mod myself, since I have a drawer full of parts.Anonymoushttps://www.blogger.com/profile/14080316060844235450noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-763313720005139832017-11-09T16:33:10.305+00:002017-11-09T16:33:10.305+00:00Thanks much!Thanks much!Anonymoushttps://www.blogger.com/profile/08066349681278437557noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-82386895120923803162017-11-09T05:40:16.292+00:002017-11-09T05:40:16.292+00:00Basically no reason. You can use what type of capa...Basically no reason. You can use what type of capacitor you want. For most of us drawing the layouts, we're using "ceramic cap" image for values under 1n as those values are more commonly available as ceramic or MLCC - and those are more common to have 2,54mm pitch.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-68455219956873561192017-11-09T01:48:43.455+00:002017-11-09T01:48:43.455+00:00Hi,
Here is a newbie question. On the TS808 with ...Hi,<br /><br />Here is a newbie question. On the TS808 with bass layout image, is there a reason why the 51p capacitor is a different color than other other ceramic caps? Is it a regular ceramic cap?<br /><br />ThanksAnonymoushttps://www.blogger.com/profile/08066349681278437557noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-29020748205279166982017-04-16T20:09:06.488+01:002017-04-16T20:09:06.488+01:00So i built the one with timmy tone and bass and b...So i built the one with timmy tone and bass and barely get a signal through. I noticed the first one has an extra cap under the ic? I ther is sound, the controls are responsive but its insanely quiet. Teddeehhttps://www.blogger.com/profile/16226967416872023302noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-52876041131066278622016-11-19T10:53:54.385+00:002016-11-19T10:53:54.385+00:00And I was thinking of our problem and came up with...And I was thinking of our problem and came up with this: The TS808 has an active tone control that actually levels off the -6db volume drop caused by the filter before it (this filter is ajustable in the timmy, we know it as the treble control) <br /><br />The timmy does not have this, solely relying on the extra volume of the diode pairs to level this out. The opamp behind is just a buffer with a gain of 2 (3,3/3,3 + 1 = 2) <br /><br />So the solution would be to alter the 3,3K pair so it becomes a gain makeup stageZombie11https://www.blogger.com/profile/03292363061955660728noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-26721345576945045662016-11-18T22:07:58.460+00:002016-11-18T22:07:58.460+00:00Might have something to do with the second half of...Might have something to do with the second half of the opamp being used differently and the diode combination (two diodes is less loud than the timmys 4 diodes)Zombie11https://www.blogger.com/profile/03292363061955660728noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-34767496252675114432016-11-18T22:00:03.947+00:002016-11-18T22:00:03.947+00:00Same here. Volume seems lowSame here. Volume seems lowZombie11https://www.blogger.com/profile/03292363061955660728noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-61224247196482270042016-11-13T21:36:30.631+00:002016-11-13T21:36:30.631+00:00I'm getting a pretty low volume on this one. U...I'm getting a pretty low volume on this one. Unity at 9 and only a slight boost at 10. Seems like less volume than other screamers. Any recommendations? I checked all pot values. Anonymoushttps://www.blogger.com/profile/11415976143265774112noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-47521927966554618102016-10-19T20:30:57.227+01:002016-10-19T20:30:57.227+01:00I just lifted the ts808 filter from it and it soun...I just lifted the ts808 filter from it and it sounds better I think!Zombie11https://www.blogger.com/profile/03292363061955660728noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-15449238221709047922016-10-19T15:29:38.333+01:002016-10-19T15:29:38.333+01:00I have a question! Why are both the ts808 filter (...I have a question! Why are both the ts808 filter (4,7K and 47nf) and the timmy filters (3,3k and 39nf+1uf) present in these circuits? Couldn't you just lose the TS filter?Zombie11https://www.blogger.com/profile/03292363061955660728noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-67390424677128259142016-07-12T05:11:18.612+01:002016-07-12T05:11:18.612+01:00Does anyone have schematics for both layouts? Woul...Does anyone have schematics for both layouts? Would be much easier to see how the tone control is implented.<br /><br />Thanks!!!Kitaristhttps://www.blogger.com/profile/02649865884561749332noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-49824963873332773422016-07-10T04:59:24.535+01:002016-07-10T04:59:24.535+01:00Never mind, I fixed the issue by moving the compon...Never mind, I fixed the issue by moving the components onto a new board (cut a bit cleaner), and putting a fair bit of electrical tape over bare wires throughout the circuit (specifically the bottom of the footswitch). I didn't have a chance to test it out at a higher level tonight, as I finished pretty late. However, even at lower levels, it's definitely a tube screamer! With a thicker low-end if I so desire! Can't wait to fire this up after work tomorrow :DAnonymoushttps://www.blogger.com/profile/15419503268302683939noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-31674253910957078592016-07-08T05:51:34.070+01:002016-07-08T05:51:34.070+01:00I just tried building this (it's my second ped...I just tried building this (it's my second pedal, and much more complex than the fuzz face I cloned for my first). The bypass is working properly, but I'm having problems with everything when I turn the effect on. About the only thing that works is the status led - other than that, I'm getting no sound from my guitar going through to the board. The only sounds I do get are occasional squeals and oscillations as I move the board around to check if anything is shorting out. I'm going to try making a new board with a scoring tool I just got from small bear and move the components over tomorrow. However, if that doesn't work, any suggestions for what the issue might be? I'm really hoping it's not just a simple short somewhere...Anonymoushttps://www.blogger.com/profile/15419503268302683939noreply@blogger.com