Hello everyone. I need your help. I finished this pedal from this schematic, and I have a problem. when i touch the tip of the plug the amp sounds, even when i move the potentiometers everything seems to work, always when i touch the tip. but when i put the plug in the bass, there is no sound. I double checked all the components and everything is fine. The only problem I noticed is that when I plug in the passive/active switch, the pedal doesn't sound at all (even when I touch the tip of the...

I have a unit where the Regen knob is going haywire. No matter how much I turn the Regen, it always product endless repeats. Any idea what could be wrong?

I like to try to find effects where there aren't many DIY offerings and come up with something. Dimension chorus is like that. There's the DC-2 clones and the Dimension P and that's about it. I repaired a Boss CE-5 a little while ago, which introduced me to the ES56028S chip that Boss now uses in all their modern chorus pedals. I use two of these instead of BBD's and ditched the companders of the DC-2, while using it's basic LFO architecture. Features include:

- Independent mix controls for...

I noticed in some of the older Boss service manual, the input/output signal is mentioned in the unit of dBm . May I know what tool can I use to measure signal in this unit? Is there some sort of dBm meter exists?

Hadn't gotten around to post this one yet.
Another cheapo, yet not awful-sounding one.
The circuit does not seem to stray too far from your standard OD. It has a fairly flat freq response but a limited drive range.
I'll get around to modding it at some point, but the bastard crapped on me shortly after reassembling it and I couldn't be bothered to reopen it.

Trace double-but-not-triple-checked. Pinch of salt, etc.

Have a nice one!

Hi, so one of my recent builds is a Ram's Head Big Muff based on the layout on the Tagboardeffects site.

Now it sounds really wonderfull and creamy and all, it's just really low gain compared to sound clips I hear of this pedal.

The voltages on the transistors seem fine (could post them on request), they are 2N5089, as far as I understand the HFE of these transistors can vary between 400-1200 so could this just be a matter of having a 'bad' batch of low HFE ones? I currently don't own a...

Hi,

I build this pedal from PCB Guitar Mania and if I use it with a dirt pedal in the loop of the Terminator itself all works well.
However, when I try to use it in the Serial Effects send / return of my Amp the signal of the guitar is sent straight to the effects return, instead of the guitar out of the Noise Terminator.

Anyone experienced this problem?

Thanks, Ron

hi everyone!
this is my first post on this forum.
i wanted to share with you this layout that I had in the drawer for a long time and completed a few days ago. the scheme that I followed is the one taken from madbean current lover (except some changes) . it can mount both the mn3007 and the mn3207 by positioning the bridges under the pcb. I did not have time to make it happen ... but I will do it soon.

who wants can download the project file here ...

hope it works :lol:

I'm sorry for my...

I am selling gear fir my recently widowed friend. The music room has the usual number of guitars amps petals etc. But the one that is stuck is the ibanez ue400 box.
There is no footcontroller that I can see and I want to try a test the ue400 is working OK.
Any ideas suggestions easy workarounds to test box without the footcontroller?
Thanks

I just got this on my bench yesterday... already traced! :D
It's a very nice sounding distortion. Lots of gain and a very use-able.
The numbers on the chip are sanded off, but it has the pinout of a common quad opamp. My guess is that it's a TL074; it has the sound I hear from that series.
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This is a very good sounding distortion. I wish they were easier to get in the U.S.

Hello everyone!

We still need to clean up drawing and verify stuff and we don't have means to measure caps atm, but long story short the blow torch is an OPA boosted Si NPN fuzz face (q9/10) with some modded values running at 18V. Torch button sets pre boost gain and there's a weird looking double transistor buffer (q7/8) between OPA and FF that we don't quite understand yet, maybe we missed smth or got it wrong? There's also a 2nd order passive filter after the FF/before the active EQ which...

Hi,

I have a reissue Fender Blender (corrected wiring and removed resistor to match the original per standard mods) and a PedalPCB Blender kit that both have the same issue: a constant loud hum that is masked when you hit a chord/note but which doesn't seem to actually ever go away. I just spoke to someone else with a reissue, and they said theirs also has the constant hum. But when I watch videos of the reissue online, they are seem to be silent.

I thought for sure the kit would not have the...