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Should not be noisy. There could be many causes and this is not a troubleshooting thread. ;) In other news, I tried adding feedback around the BBD like we would find in a flanger. Very interesting. It magnifies the vibrato effect and with a lot of feedback, we get that "talking thru a...

"One way or another." - Debbie Harry

Your Low tide contains a PT2399? :oops: Mine has a V3207D BBD in it and is dead quiet.

In chorus mode, the LPG is barely noticeable. Which is how it should be. But in Vibrato mode, the LPG should do something obvious.

And here it is: The Heavy Water Modulator. I had considered some other names, such as Swamp Water, Mineral Water, Toilette Water and Bong Water. To really complete the Heavy Water motif, the enclosure should either be day-glo green or glow in the dark. The parts count is significantly reduced...

Who says ChatGPT is bullshit? It drew this for me.

Yo Fig! I'm still working on the artwork for those pedals, honest!

That post is over two years old and you are the first person to notice this, good catch! The text has now been corrected. Now I'm the one who's embarrassed. 😜

The fact that everything connected to Vdd draws current and that current contributes the voltage drop across the DYNAMICS pot.

Yes. We're starting to drift off-topic.

That's right, U2A boosts the output of the distortion stage. Comes in handy if you want to set DRIVE low enough that the circuit runs clean. That opamp could be replaced with a BJT, but I would not recommend it because we need a low output impedance to drive the Baxandall tone stack. I know...

Setting the LPG Trim is easy and a matter of personal preference. According to the Shallow Water Manual: "The recovery filter’s lowest frequency can be adjusted, to fine tune the way it will react to incoming signals. Lowering this frequency emphasises the action of the low pass filter...

It's easy enough to boost the 5V signal coming out of the TINY25V microcontroller, although it's not really necessary. The CD4046's VCO IN pin is analog and the VCO tuning range is not affected much by power supply voltage.

That's my short-circuit protection. I need it on a breadboard. I'm looking at drastically simplifying the Low-Pass Gate circuit while maintaining the same functionality.

Breadboard a Rat and try it there.

In no particular order... OKKO Diablo V3 CB mod Emperor of Tone Hybrid Fuzz Driver Deluxe Lingonberry OD CB mod Germanium Filter

This one has been in the queue for a loooooooooong time. I built it pretty much per the schematic I got from Robert. I subbed an MCP6002 for the MCP602, a CA3240 for the LM258, 1SS98 for the BAT48's and a 2N5246 for the 2K208-Y. The Shallow Water manual was helpful in setting the LPG trimmer...