Tweet
So I know this is not knew but I felt this needed to be revisited. There are many sources of information on passive high pass filters in guitars with passive pickups but I have yet to see the same passive high pass filter used with the Seymour Duncan Blackouts (or active pickups for that matter). I have already delved into this matter so I will run you guys up to speed on what I have done. ***Please feel free to share and comment you experiences if you have experimented with this. I am very interesting in hearing you story***
My first attempt with this was on a passive pickup guitar. I attempted to use 500k pot like some folks but I found an issue that no one was bringing up. The issue is if you used a 500k pot and rolled the pot over to the position that would remove the most bass, it actually shut off the guitar (not that capacitor I was using was a .047 uf, that's the same pot it was using for the tone circuit). However when I used a 1M ohm pot(or 1000k pot) it did not do this. 1M ohm pot is what you are suppose to use anyway. If you are wondering how I wired it please look at the photo I will attach. It will be the pot at the very bottom that is labeled 1M using a .001uf capacitor (well I will upload it when this website will stop being a butt and let me upload a photo).
So that brings me to the Seymour Duncan Blackouts and trying to use a passive high pass filter in the guitar. I ended up have the same issue just like the passive pickups. With a 25k pot and using the capacitor that was provided by S.D. if I rolled the pot all the way back to remove the max amount of low end it ended up killing all of the output of the guitar. So given that on the passive guitar I went from a 500k pot to a 1000k pot I decided to try the same thing on the S.D. and use a 50k pot instead of a 25k pot (doubling the resistance). And just like the the guitar with passive pickups, it solved the problem. I now still had output even when I rolled the pot all the way down to remove all of the bass. Again I was using the factory capacitor at the time and decided to swap to different capacitors (and that's where things went wrong). I used the same capacitors that I was using for the passive guitar and I think that was the mistake. The resistance and the capacitor directly effect the frequency where is starts cutting at and I now had really low resistance on my pots compared to the guitar with passive pickups.
I was in the middle of playing my guitar when it suddenly cut out (wires and pots were loose because I was swapping in and out caps) and I believe its because something touched. I found the ground wire from the pickup had broken off so at the time I didn't think nothing of it. I reconnected the ground but the pickup was dead. I am question how the ground wire just broke a good solder but I think maybe the wires got to hot because it touched one of the legs of the capacitor and broke itself or the cap was holding up the output of the pickup that it couldn't handle it. I will buying another Blackout and trying this again with the 50k pot and capacitors that are in a range appropriate for that pot value. I have not reviewed this but I am using this to figure it out ( https://www.amplifiedparts.com/tech-...pass-high-pass ).
I will let you guys know what happens next when the new pickup comes in but I am hoping I can get this resolved and working. Also no one else to my knowledge has successfully has done this (that I know of). Please share your experiences and your journey. I will try again to load pics and schematics if it wants to cooperate later. Thanks for reading
My first attempt with this was on a passive pickup guitar. I attempted to use 500k pot like some folks but I found an issue that no one was bringing up. The issue is if you used a 500k pot and rolled the pot over to the position that would remove the most bass, it actually shut off the guitar (not that capacitor I was using was a .047 uf, that's the same pot it was using for the tone circuit). However when I used a 1M ohm pot(or 1000k pot) it did not do this. 1M ohm pot is what you are suppose to use anyway. If you are wondering how I wired it please look at the photo I will attach. It will be the pot at the very bottom that is labeled 1M using a .001uf capacitor (well I will upload it when this website will stop being a butt and let me upload a photo).
So that brings me to the Seymour Duncan Blackouts and trying to use a passive high pass filter in the guitar. I ended up have the same issue just like the passive pickups. With a 25k pot and using the capacitor that was provided by S.D. if I rolled the pot all the way back to remove the max amount of low end it ended up killing all of the output of the guitar. So given that on the passive guitar I went from a 500k pot to a 1000k pot I decided to try the same thing on the S.D. and use a 50k pot instead of a 25k pot (doubling the resistance). And just like the the guitar with passive pickups, it solved the problem. I now still had output even when I rolled the pot all the way down to remove all of the bass. Again I was using the factory capacitor at the time and decided to swap to different capacitors (and that's where things went wrong). I used the same capacitors that I was using for the passive guitar and I think that was the mistake. The resistance and the capacitor directly effect the frequency where is starts cutting at and I now had really low resistance on my pots compared to the guitar with passive pickups.
I was in the middle of playing my guitar when it suddenly cut out (wires and pots were loose because I was swapping in and out caps) and I believe its because something touched. I found the ground wire from the pickup had broken off so at the time I didn't think nothing of it. I reconnected the ground but the pickup was dead. I am question how the ground wire just broke a good solder but I think maybe the wires got to hot because it touched one of the legs of the capacitor and broke itself or the cap was holding up the output of the pickup that it couldn't handle it. I will buying another Blackout and trying this again with the 50k pot and capacitors that are in a range appropriate for that pot value. I have not reviewed this but I am using this to figure it out ( https://www.amplifiedparts.com/tech-...pass-high-pass ).
I will let you guys know what happens next when the new pickup comes in but I am hoping I can get this resolved and working. Also no one else to my knowledge has successfully has done this (that I know of). Please share your experiences and your journey. I will try again to load pics and schematics if it wants to cooperate later. Thanks for reading
Comment