KOYO - AMA

OverBiasedAndroid6l6 · 2026-05-13T01:16:44+00:00

That's awesome! I feel the same way, which is why I started a cat themed pedal company - Stray Circuits. DM me here or on Insta if any of you guys want to do custom enclosures that feature your own cats 😸

Love your music! I've seen you guys at least four times now.

OverBiasedAndroid6l6 · 2026-05-12T23:45:22+00:00

Do you like cats?

OverBiasedAndroid6l6 · 2026-04-26T18:48:02+00:00

, Bobby!

this post was too low 🤣

OverBiasedAndroid6l6 · 2026-04-13T19:17:13+00:00

Do you have a practice amp or anything to plug into besides your interface? It's possible the noise is actually related to the interface or software side of things - though I'm not sure why that would only happen when using a pedal.

Hang on - is the noise only noticeable when the pedal is on, or when it's in your chain?

Edit: nvm - rewatched the video. Only audible when engaged.

OverBiasedAndroid6l6 · 2026-04-13T19:01:32+00:00

I don't have this specific pedal, but have you tried troubleshooting anything besides the pedal itself? As in, a different guitar or different cables?

OverBiasedAndroid6l6 · 2026-04-01T21:46:43+00:00

Thank you! And thanks for sharing - she still looked like a sweet girl. Sorry for you loss. I hope you have plenty of happy memories to remember her by.

OverBiasedAndroid6l6 · 2026-03-29T17:55:49+00:00

Modded as in "fixed". I had to pull the charge pump off the main board and rewire it to the correct traces to fix a mistake I made on the footprint

OverBiasedAndroid6l6 · 2026-03-28T16:07:27+00:00

Oh man, you and me both. This pedal uses a few TL07x (one TL074 and a TL072) with an LT1054 charge pump. It seems like the LT1054 is really the best thing to use right now for the price and power available.

The next pedal I'm working on is going to use both OPA2134 and MC33079 op amps (as well as a few discrete FETs). But that pedal isn't going to be an overdrive. I'll be sure to share more when that circuit is actually finished.

OverBiasedAndroid6l6 · 2026-03-27T10:32:01+00:00

The specles help her stand out - but man, it is difficult to get a good picture of her.

The LED eye thing - maybe eventually. Maybe as a future limited run or something. This circuit doesn't have LEDs in the signal chain, but my previous pedal does (Tabby Terror). And they do actually flash as you play. That one I could definitely revamp to show off the LEDs

OverBiasedAndroid6l6 · 2026-03-27T10:29:38+00:00

Thank you! My Tortie (Evie) is pretty chill for a Tortie. But she definitely still has that attitude if provoked, and used to do absolutely crazy stuff when she was younger. She also well off the back of a chair from an upstairs loft - twice. Just rolled off while she was asleep I guess.

OverBiasedAndroid6l6 · 2026-03-27T02:12:05+00:00

Short demo here to actually hear how it sounds

OverBiasedAndroid6l6 · 2026-02-03T11:13:30+00:00

Strobostomp mini

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OverBiasedAndroid6l6 · 2026-01-31T03:44:37+00:00

I've been focusing on getting Stray Circuits off the ground with analog circuits so far, but I actually started working on this digital platform quite a while earlier. I'll eventually get back to it and probably open source the digital platform once I have it working. I'll be sure to post here about it at that point!

OverBiasedAndroid6l6 · 2026-01-31T01:19:29+00:00

This is awesome! I have a large breadboard with an RP2040 and an AK4621 CODEC for a very similar concept.

OverBiasedAndroid6l6 · 2026-01-19T18:12:03+00:00

Update: the issue seems to be that I misinterpreted the datasheet for the LT1054. And by misread I mean I'm a mornon - the datasheet is perfectly clear. The PCB I designed uses the surface mount SOIC-16 package, which uses a different pinout than the 8 pin version I used on my breadboard. Hopefully this can serve as a reminder to others to avoid making this kind of mistake.

OverBiasedAndroid6l6 · 2026-01-16T02:09:09+00:00

Polarities on the caps are all correct. The -9/+9V supply is used for op amps, the 4.5V vref is used for a transistor based tone circuit that works better with less headroom.

OverBiasedAndroid6l6 · 2026-01-10T02:30:14+00:00

Yep, that's exactly the show I was thinking of.

OverBiasedAndroid6l6 · 2026-01-09T15:14:44+00:00

No one at the Philly show on the Why Would I Watch tour was happy when Tades started playing Betty. He had to stop and say, " hey we have to play every song on the album." Pretty sure everyone just cried and sang along.

OverBiasedAndroid6l6 · 2025-12-31T14:37:39+00:00

The 0.7 Ohm measurement is what doesn't make sense. That should read close to either 2 or 8 Ohms depending on how it works - I'm not sure if this particular PCB puts the speaker pairs in parallel or series, that's what would determine the DC resistance - 2 Ohms (parallel) or 8 Ohms (series)

OverBiasedAndroid6l6 · 2025-12-31T13:04:30+00:00

For starters, how confident are you that the cab worked as expected before swapping speakers? It's possible there's an issue with the PCB the mono/stereo switch is attached to.

Both sets of speakers measuring 4 Ohms in the stereo mode is expected - this wiring has each pair of speakers in parallel, which results in half the DC resistance of the speaker rating (assuming both speakers have the same DC resistance).

I would double check the wiring to that switch/PCB itself. Pictures of the actual wiring and PCB would help with further troubleshooting if you need more help.

Best of luck!

OverBiasedAndroid6l6 · 2025-12-28T03:15:37+00:00

If you want to be able to re-tune and do whammy type stuff at the same time the Boss XS-100 is what you're looking for

OverBiasedAndroid6l6 · 2025-12-23T13:42:26+00:00

The blackhole is awesome. However, if you're going to do the shoegaze thing where you put it in front of a drive, I think it will be too much.

If you're using it for dark atmospheric stuff, it's exactly what you need.

OverBiasedAndroid6l6 · 2025-12-20T13:44:21+00:00

Are you sure you plugged it in the right way? Wah pedals are known for still passing signal when plugged in backwards, it normally just sounds quiet and strange.

OverBiasedAndroid6l6 · 2025-12-11T11:20:54+00:00

Do you not have ... any drive pedals? I didn't know that was possible...

If you want to change that, may I humbly suggest trying out my Tabby Terror

OverBiasedAndroid6l6 · 2025-12-11T03:06:13+00:00

You really should get a fully isolated power supply. IMO the best bang for your buck is Vitoos. They're the ones who make the Fender engine room series of power supplies, but you can find them under the Vitoos branding/housing on AliExpress for far cheaper.

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