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My best friends!

This thing drove me crazy. I tried to build it two times. Then one day I was pokin around at it and disconnected wire 8 from the mode switch and it started working fine. I'm not to sure why but it worked for me. It's worth a try

I've tried it with both 4uf and 4u3 and couldn't tell the difference.

So I got a new Sharkfin pcb and tried this again and have the exact same problem. I double checked all values before soldering. The only thing I used from the old board was the charge pump and the 2 CA3080s. The only thing I can think of is the J201s I got from Tayda. I just saw the thread stating a lot of these are fake. Could this be causing this problem? Would the Sample/Hold still work if so?

I've built several projects but this one by far is the biggest pain. Any help would be very much appreciated.

Thanks! I'm getting a signal in filter mode but it's not quacking like in the demo I've seen. It's more of a notched wah sound. Should I still probe it even though I'm getting signal?

Hey ya'll! I finally got back around to trying to get this thing working. I tried swapping out the ICs and diodes plus a handful of caps & resistor and I'm still not getting anything out of the filter side. The sample hold side works great and sounds killer. Anybody have any ideas?

Dude where did you get the tiny 1/4 inch jack for your mini builds?

I just built one with a Lowrider and Runt. It sounds sonicly sinister

Hi Guys! I just finished my Sharkfin build and I have an issue. The sample/hold mode works fine and sounds awesome but I can't get the filter mode to sweep. I get cocked wah sound but no auto wah. The only sub I made was Bat41s instead of Bat46s. Can anyone point me where to start poking around? Any help would be much appreciated.

Thanks

I'm having the exact same issue.

Well I I'm running at 9v. I have a Road Rage for running it at 15v but I wanted to test it before I did that. I probed it and I'm getting guitar signal at pin 7 but just get a high pitch whine out of the output pins. The battery is dead on my dmm so I can't get voltages till tomorrow. The only BDDs i have are the bl3208s and some v3205s. It works perfect the the BLs.

Thanks so much for the help!

Is there anyway to test these ICs before I dispute it with the seller? Is ther something I'm missing?

Cool thanks brain. I jumpered it and its not catching fire but its still not working with these MN3005s. I switched it back to the BL3208 cofig and its working fine. I figured if it was a relabeled MN I would get some sort delay but get nothing. I guess I got ripped off. That really really sucks! The seller had feedback from people sayin the chips were good. Fail!!!

Yeah I double checked the jumpers. The Aquaboy DX doc say its alright to switch the ICs. I think I'm gonna switch back to the BLs and see what happens. Can anyone test these MNs for me?

So here goes. I've built a bunch of MB pedal and love them. I decided to take it to the next level and build an Aquaboy DX. At first I had it setup with BL3208s and it worked great but I wanted some more delay time. So I hunted down some mn3005s off EBay. The guy is in the US, has %100 feedback and tests each chip on video. I cracked open the AB ,switched the jumpers, fired it up and got nothing but dry signal. I reseated the ICs and double checked the jumpers and still got nothing. Then it started smoking!!! R58 melted right if front of my eyes.

Can someone tell me what's going on? I'm scared to turn it on!!! Am I screwed? Any help would be much appreciated.

Thanks