Recent content by Jachiro

Hey, I’ll see if I can make a more substantive reply to you when I get back from my work trip. For now, I had a thought about the randomizer chip. I believe its voltage source is from a 5V linear regulator. I’d check the orientation on that and also verify it has a solid 5V at its output. It...

I would recommend getting most if not all chips whenever possible from Mouser or Digikey. LM258P chips are made by Texas Instruments and are currently in production if I’m not mistaken. It’s the older discontinued chips that are at higher risk of getting bad chips or fake ones if you get them...

Hey, I’ll try to help you out. I have successfully built this circuit twice, one was the full size low tide and the other was the low tide mini. There’s a few build notes to observe 1. Your chips should ALL be socketed. If any of your chips are bad and/or fake chips from eBay, and you need to...

I’ve read comments here about my write up for the past year and a half or so. I’m happy it’s helping folks out. Lol it seems like it’s becoming the unofficial procedure. I actually haven’t used my low tide in a good while. I’m trying to record a lofi track and I’m going to be putting the mix...

Actually, after revisiting, and after playing through my vibrobot for a while I saw that it was still distorted in sine wave mode. I looked more into it and I saw that R21 (91K) was enough out of tolerance to cause distortion. I replaced it with a 100K trimpot with one leg removed, making it a...

Hello. I don’t know if it’s too late to post on this thread but I just went through the exact same thing on my vibrobot build I just completed. Perhaps I can provide some insight. I had a nasty distortion that I could not dial out at any position of the trimpot. I traced my signal and found...

Feel free to reach out if you have any trouble.

Ok, new update. I ordered a new pcb and started over. I was 100% sure all my values were correct per the documentation. I also made sure to use sockets instead of soldering IC's directly to the board in case I needed to replace one or more with no risk to damaging the PCB. I got very different...

Hi. It does appear that it’s backwards. During my troubleshooting, I accidentally pulled my surface mounted Q1 and destroyed the pads. I ended up substituting another sk series transistor; I twisted the gate and source legs to go into the proper pads making it appear backwards. Q1 is actually...

Hi. I recently put my Low Tide modulator and I'm having some pretty nasty trouble with it. I'm unable to get a proper wet signal. I have set the bias point of the V3207 BBD to a healthy 2.5V (1/2 of the 5V going to the VDD terminal). At this bias point I should get something on the output but I...

Is there a recommended gain and volume setting at which we bias the transistors?

Ok. So I just finished putting everything together and there’s some things I’m unsure about since there’s no documentation available. I assume the trimpots are for biasing the J201 transistors? Since there’s a TC1044 in the circuit, I take it that VDD=18V and the bias voltage for the...

Great. Thank you

Hi. I just got my Argentum 1212 pcb. There’s no documentation available but it seems like a straightforward build. Is there a drill template for this pcb or is it the same as a different pcb on one the site which has documentation available?

Hello, I just built my low tide mini. I dialed in the gate and bias controls as best I could. The bbd is biased just until the point where it doesn’t distort anymore. I dialed in the gate until the point where it gets dark with the gate control all the way to the left. I noticed that the...