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It's actually not uncommon for a disconnected circuit to pass some signal through. You wouldn't think, but it happens in some cases.

Fizzy sound could mean a few things. You haven't really given enough information to provide much of an answer. Have you used any substitution parts? Have you measured any voltages on your build?

I want a Princeton Reverb bad. That's the only thing I have to offer in this thread.

Argh, I'm sorry. I keep forgetting to do that. I will finish it ASAP and get it up. No later than tomorrow morning, I think. thanks for your patience.

It took a couple of days, but I am pretty happy with the layout. I'm doing the final checking over before submitting it to OSH Park. I'll be experimenting with mixing MN3005 and MN3008 on this.

Also, when using an SPDT as an SPST, connect the middle lug to the un-used outside lug. Why? Cause it's pro.

I'm working through the layout now. I'll update you guys on the progress. Not to worry-- I won't let this slip by. The Dirtbag is going to happen and soon. But yeah, let's make it the absolute best project we can. Also, I'll be adding a Rate pot for the LFO for an extra modulation control.

Have you tried audio probing any part of the boost? It seems like your voltages are okay. Specifically, you want to the output of Q5, and the input of Q6.

I support this...as long as I am #1 (j/k j/k).

Seriously, Paul: this is awesome.

Hmm. Not at the same time. Obviously, I can do DB2 now since it is already planned. To do DB3 (?) at the same time would probably push it even later in the year due to the cost of manufacturing. DB3 would probably be closer to a $20+ board. I am a little reluctant to spend the money manufacturing DB2 if what people really want is DB3, hence the general question.

Interested to get some feedback here. What if I were to move the next Dirtbag to a 4x BBD rather than a 2x BBD? So, you could use (4) MN3005 (for 1 second delay), or (4) MN3008 or BL3208 (for 550ms delay)? Would this be worth waiting just a bit longer for the project? It would move the project into probably August.

What do you think?

A few of my own favorites:

Here is a catch-all thread for our many, many members to post their best and most favorite builds. This thread is like the pictures thread over at DIYSB: post completed builds only. General WIP, half-done stuff and full on build reports should go in their own threads. This thread is for members to look through and see the amazing talent we have here in this community.

Without power connected, check that you have continuity between the two upper right lugs (red wire and black wire). You may have to depress the footswitch one time. Next, check that you have continuity between the black lug and any grounding point on the circuitboard.

I would actually go up to something like 220k - 470k for the parallel resistor. It will limit the delay but not so much as a 22k.

The tone pot will be somewhat interactive with the feedback pot because you are rolling off high end with the tone pot. This reduces the signal mix back into the delay chip which is why the feedback pot needs to be turned up a bit more when you are cutting tone.

Yeah, that should work. Do you have a continuity tester? It might help to verify the switch is working and your black wire is indeed grounded.