Messages

Great job. I'm proud of Bob for the stand he's taking. I'll
Have to revisit my thoughts on Taylor guitars.

Jacob

I totally identify. It's hard to breadboard effectively. Here's my strategies.


- Do the power stuff first, and use a Multi Meter. If you need 9V, Gnd, and VB, get all of them measuring correctly before moving to the circuit.
- Start at the beginning, work to the end.
- Keep a schem with you, make notes on it, and scratch off parts with PENCIL as you install them.
- Audio Probes and Multimeters are very useful. Use the continuity meter to make sure the appropriate parts are connected and not connected to where they're not supposed to be. Use your Audio Probe to figure out where your signal disappears.

You'll learn more by breadboarding than you'd think. Also, work on fixing the issue rather than starting over. You'll learn more that way too.

I just used my breadboard to design a Reverb. Trust me, it's gonna be awesome if you learn it.

Jacob

Either can be used, it's not some much of which is better as much as which fits and what can I afford!

Make sure you've got the right lead spacing and size on your cap, and then get the one that costs less. Post some links to the parts you're looking at if you've still got questions.

Jacob

Part of the issue may be that the Sea Urchin is an extra project, and since it's not a sold project not a lot of us have much experience with it.

Based on the schem, it's pretty much like all other PT2399 type delays for the mix knob. At minimum, you should be getting no repeats at all. That indicates that something is wrong with your circuit, but it'll be hard to determine what. The pedal is functioning correctly otherwise right?

The Mix pot in this instance is merely a variable resistor. At full resistance, no delay signal would be getting through to the output buffer. At minimum resistance, you would be getting delay signal louder than your dry signal. I'd suspect either a solder bridge, incorrect wiring, or a bad pot.

Have you got another pot?

Jacob

Pictures of the wiring would help. Have you got an audio probe? That will help a lot.

Jacob

Thanks boys! We like to keep things positive here, and I hope you keep me in line if I get grumpy...

But back to the topic at hand - how does the engineers thumb sound? Live up to Merlin's hype?

Jacob

It is good. Too bad I don't understand half the stuff MicTester is saying. I think he's a member here too...

Please by kind to all who write around here, it's only polite.

Jacob

Would likely enjoy a link on that one...

My experience with Merlin is he's a great guy.

Jacob

Nice Dutch. Are you doing your own Powdercoating too?

Jacob

Doesn't madbean have muff, boost and fuzz variants? Just sayin

Great points. But so do GGG, Tonepad, BYOC, GuitarPCB and many other places we can get projects to work on.

I am not offering the same projects as Madbean, and trust me, he's okay with me doing this. Brian and I have worked together for a long time.

This post is really about market research. I think it's wise for any new venture to ask these kinds of questions, and the answers are telling.

My hope long term is to fill in gaps that Brian doesn't have time or interest in pursuing. He's got more projects on the go and in preparation than is really feasible. Right now, I believe he could release one new project a month for more than a year - perhaps more than two...

Jacob

Because the battery is draining quickly I would suspect your power is leaking to ground somewhere. Does the battery heat up as well?

Jacob

I might be developing a Tap Tempo board based on the Taptation product available at DIY Stompboxes. This delay features the taptation, so I though it might be worth showing.

Jacob

I don't press the like button on many Youtube videos, but this one got a whole hearted one from me. Hope you enjoy it, cause I 'liked' it.

Watch for the 'dancing jews...'

Jacob

Ian. You're killing me. I love it.

What do you think of the compulator? Did you try many vactrols?

Jacob

Only if you built it with 20M resistors in R1 and R2.

But impedance isn't quite that simple. I don't fully understand it. I think if you were to just ballpark it, you'd say that 1/2 of R1 and R2's value would be your impedance. With 10M resistors, you'd be looking at ~5M impedance.

For what it's worth, I think 2.2M is just fine in those spots.

Jacob