Members Narcosynthesis Posted July 5, 2005 Members Share Posted July 5, 2005 the marshall BB-2 has a 4558 chip in it, i may have to poke a bit of wire about inside that and see what happens David Link to comment Share on other sites More sharing options...
Members Mark Blasco Posted June 26, 2006 Members Share Posted June 26, 2006 Can anyone tell me if this will work for a BYOC screamer clone? I am building one and was hoping to do this mod today after work. Link to comment Share on other sites More sharing options...
Members 4nkam Posted June 26, 2006 Members Share Posted June 26, 2006 yep it should work fine for any od with a chip like that. mJ Link to comment Share on other sites More sharing options...
Members usa83strat Posted June 26, 2006 Members Share Posted June 26, 2006 humm got a modded sd-1 i cant seem to unload , i will try this NOW Link to comment Share on other sites More sharing options...
Members Uma Floresta Posted June 26, 2006 Members Share Posted June 26, 2006 Think this would work with a Dano Fab Overdrive? Link to comment Share on other sites More sharing options...
Members usa83strat Posted June 26, 2006 Members Share Posted June 26, 2006 so 5and 7 then yeah cause 6and 8 dont work i get the pop, pop pop sound and increases in spead as i turn on the gasin but nothingmore Link to comment Share on other sites More sharing options...
Members usa83strat Posted June 27, 2006 Members Share Posted June 27, 2006 its 1 and 3 at least on my 808/fulldrive/cuervo modded sd-1 Link to comment Share on other sites More sharing options...
Members preservation Posted June 27, 2006 Members Share Posted June 27, 2006 thats a lovely sound. Link to comment Share on other sites More sharing options...
Members usa83strat Posted June 27, 2006 Members Share Posted June 27, 2006 ok did played with it for a few moment and it doesnt work the same on the sd-1, i guess the extra tone filter {censored}s with it it like the tone knob control the amount of {censored}ness in the sound, and the gain just fuzzes it a bit a lot of boost though. i un did it. sound cool but not very use full Link to comment Share on other sites More sharing options...
Members Dr. Tweedbucket Posted June 27, 2006 Members Share Posted June 27, 2006 Originally posted by sstim8or My wife overheard me listening to the clip and said, "That sounds awful. What is that?" Link to comment Share on other sites More sharing options...
Members Mark Blasco Posted June 27, 2006 Members Share Posted June 27, 2006 So I built the screamer clone and did the mod. It works! The only problem is that the volume is LOUD!!! I barely turned the thing up past zero and it was really loud. So much for my plan to put in a footswitch to turn the atari sound on and off. If you have one of these bad boys lying around and a soldering iron I strongly suggest you try this - do it with a long piece of cable and that way you can add in a switch for it later if you like it - if you don't, all you have to do is cut off the jumper. It is really easy. Link to comment Share on other sites More sharing options...
Members Mark Blasco Posted June 27, 2006 Members Share Posted June 27, 2006 Does anyone know or have an idea of what would happen if instead of a cable connecting those 2 solder points you had a pot to adjust how much resistance there was between the two pins of the chip? Link to comment Share on other sites More sharing options...
Members falcon42 Posted July 2, 2006 Members Share Posted July 2, 2006 Originally posted by bigtonemusic If you are looking at the top of any DIP8 IC the pin #'s go 43215678Anyways...I'll change the 100 ohm resistor to make it more 9 series like. Hopefully that's the reason it doesn't work. I sure hope so because those clips sound {censored}ing sweet. Did you get it to work with pins 5 and 7? Link to comment Share on other sites More sharing options...
Members mumford Posted July 2, 2006 Members Share Posted July 2, 2006 That's cool! At last, I have a use for my Tube Screamer! Link to comment Share on other sites More sharing options...
Members fearofnightmare Posted July 2, 2006 Members Share Posted July 2, 2006 It works really well with an Arion Tubulator...that way if you mess it up, you didn't screw up an expensive pedal. Link to comment Share on other sites More sharing options...
Members falcon42 Posted July 2, 2006 Members Share Posted July 2, 2006 +1 to would it work with a dano fab distortion? Link to comment Share on other sites More sharing options...
Members dirk-hendrik Posted July 2, 2006 Members Share Posted July 2, 2006 Pin 5 and 7 confirmed. I don't think one should focus on the fact that there is a 4558 in there (although it might not work with another type chip) but on the fact the tone control is (and how it is) connected on those 2 IC pins. Worth diving into al little more to determine if the effect can be controlled (at least 1 full octave available for a setting). My drummer is going to kill me for this. He didn't like my horny pregnant snail chorus setting either..... but other than that, WICKED! Just turned a TS5 into a TS f#ck^d Link to comment Share on other sites More sharing options...
Members Mark Blasco Posted July 3, 2006 Members Share Posted July 3, 2006 It sure is a cool sounding mod - there are 2 problems with it, though, which are making me debate how useful it is - 1 - very little range - yeah, it will generate a large range of tones if you are tweaking the knobs, but if you are playing the guitar to control it, you can get half an octave at most 2 - the sound never stops - if you stop playing, it keeps making noise. It is just a constant tone. Bummer. If this thing had a wider range (1-2 octaves), and would stop making noise when you stopped playing, I would use it for sure. Now I am not so sure about what to do with it... Maybe I will just get a moog ring mod and forget about it completely Link to comment Share on other sites More sharing options...
Members edwardricart Posted July 3, 2006 Members Share Posted July 3, 2006 when in doubt just dunk everything in your sink clean off the dirty bits you know wicked Link to comment Share on other sites More sharing options...
Members falcon42 Posted July 4, 2006 Members Share Posted July 4, 2006 Well to stop the noise you could wire up a DPDT stomp switch and that would turn on the mod when you were playing and wanted wierd noise and hitting it again would turn of the noise, make it a perfectly usable tube screamer, and would be fun Link to comment Share on other sites More sharing options...
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