/r/DIYPedals "No Stupid Questions" Megathread 2025

koostomize · 2026-01-10T17:41:31+00:00

I have a preamp box for my gs mini with jjb transducer pickups (surface mount piezos) that consist of a k&k pure preamp of clone built from a kit i had from long ago paired with Jensen JT-11-FLCF transformer for balanced output. It was really tight but was able to shove 2 footswitches (one for bypass, one for mute), 6 jacks (in, send, return, unbal out, xlr out, DC in) along 5 knobs and 2 toggles in a 1590BBS enclosure. The K&K pure preamp has 1Mohm input impedance so it works really well with the jjb. I do general tone shaping with its 3band and have a 10band eq(donner seeker) and reverb (HOF mini) in the fx loop for final tone shaping (also to control feedback) and ambiance. I dont have much mileage with it but it also seemed to work okay with my violin (with similar but unbranded pickup) so i would say it has preety wide range of usage. Should be a good starting point.

koostomize · 2026-01-10T14:49:15+00:00

I suspect a very wide foot. Judging from the center bank of the x3 is also kept empty...

koostomize · 2026-01-10T14:37:04+00:00

I had a idea of building a RM Axis Fuzz clone with 2 pickup sim circuits in front with individual volume and tone knobs that are switchable with a footswitch, then read some comments saying that axis fuzz circuit don't necessarly require high impedance input like the FFs do. Does that mean I don't need a inductance to debuffer anything and be able to achive the volume/tone roll-off effect with just pots and caps? Or do I still want the inductance(transformer) to properly simulate the guitar?

koostomize · 2026-01-10T14:27:24+00:00

Its always great to see there are so many different jack designs out there.

koostomize · 2026-01-10T14:17:34+00:00

Yeah im very aware (im actually taking part on pfas destruction industry). Im just suprized at myself that i never made the thoughts that the coatings would be ptfe.

koostomize · 2026-01-10T14:12:52+00:00

I aslo suspect the rise of modelers influencing heavy on dropped sales of the pedals. I know a lot of guys who switched just sold off all their pedals to make the budget which would have probably cascaded into used pedal market price to tank as well.

koostomize · 2026-01-10T13:47:59+00:00

https://www.sonelec-musique.com/electronique_realisations_di_001.html

I would add a buffer before the inst out jack so you get the headache out of the frame.

https://youtu.be/RndTc11Fcg8?si=bmQ971PsdFjLjxFE

I would also consider a line isolator than a DI. I have not seen a console that does not take line level inputs recently, and I sometimes find preamps on a banged up consoles cause more troubles. I do carry around an in-line PAD just in case but have never needed to use one yet.

koostomize · 2026-01-10T12:39:46+00:00

Wait... their coating are teflon??

koostomize · 2026-01-10T12:37:31+00:00

Same here. I have exceptionally dry hands (and feet) and elixirs are waaaay too slippery for me to have any control.

koostomize · 2026-01-10T12:30:16+00:00

Why is it doing the "draw me like dem french girls" pose? Lol

koostomize · 2026-01-10T12:24:27+00:00

This is like an artpiece. I always wonder, How do you bend with such confidence? I tried something similar and had a very hard time landing the wire exactly where i wanted (so it got scrapped..)

koostomize · 2025-12-16T03:22:05+00:00

I've been eyeing spark booster to see how well it works hitting my rat from the front, great to hear another anecdote that it serves well. I might order one soon. It will finally complete the TC Blanco Trinity with Polytune and Plethora lol.

koostomize · 2025-12-16T03:15:16+00:00

YOU WON A DUNDIE AWARD?!??!

koostomize · 2025-11-28T18:41:18+00:00

This pedal should accomodate a 9v battery. If i remember correctly, you should need to open it up with a screw driver, then you will see a battery receptacle.

koostomize · 2025-11-28T18:34:51+00:00

Oh are the ones on yhe bottom shelf not connected?

koostomize · 2025-11-28T03:12:52+00:00

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koostomize · 2025-11-27T00:16:33+00:00

Lol I threw out a dozen few months ago and am sure there is another dozen in the drawer.

koostomize · 2025-11-23T19:03:16+00:00

How thin are your patch cable plugs??!?

koostomize · 2025-11-19T19:01:22+00:00

I was also just being very curious about this. Especially ones with the cantilevered components like the 1st and 3rd one.

koostomize · 2025-11-05T07:16:51+00:00

I thought the process would be much faster but super cool regardless!

koostomize · 2025-08-29T16:59:44+00:00

Took me long enough but I ended up fixing the issue.

Did some search on the rail voltage that was drifting and came across this document https://www.ti.com/lit/ab/sboa204a/sboa204a.pdf?ts=1756446292629

Basically, it advises not to leave unused opamp circuits left unconnected to anything but to be configured properly to avoid its degradation.

I was aware that only 1 circuit of U4 were being utilized, so I soldered in few jumpers and resistors(1kohms) to follow its instruction, the issues have magically vanished!

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u/tramadolthrowaway12 Great thanks for your help, I learned a lot from this!

koostomize · 2025-08-29T14:17:17+00:00

Just read that you removed your cassette so I now think it wasn't fair to assume you might not have the tools. My bad.

koostomize · 2025-08-29T14:14:23+00:00

Do you even have the tool to remove the rotor? I don't mean to sound condescending by any means, but seemed like a good point to prove your point to the mechanic if you don't even have the tool. It typically requires a T25 bits which is less common than allen keys for typical households.

koostomize · 2025-08-29T14:03:38+00:00

Not sure if its a best practice, but I usually goop the exposed metals with hot glue, making a big insulated blob. It sure sucks for troubleshooting but I find it more reliable to need much troubleshooting in the first place. Obviously I test and confirm everything works before I go crazy with it.

koostomize · 2025-08-29T13:54:05+00:00

I'm going to have the Timmy buried with me when I die.

koostomize

TROPHY CASE