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That pedal is gorgeous.

Jacob

ditto.

Jacob

Boy those Morgan Amps look slick hey?!?!

Jacob

yeah, it's just that the Timmy seems to be the running mystery pedal. The schem is up, but people keep asking for it. We've all said we won't do layouts for it around here, but people keep asking for it, so it's the automatic joke for me, but I've got over 3000 posts and am very familiar with what happens around here, and I forget that not everyone would get that.

Sorry for the confusion...

Jacob

It goes in > C1 > ground. You need to fix that.

Jacob

It's not a timmy... that was a joke.

Jacob

I think the clipper ship is my favourite artwork.

Jacob

BWAHHAHAHAHAHA

Jacob

Yeah, that sounds about right...

Jacob

That's what I'm talkin about, but to a much subtler degree. Its not anything Ive done to create it, because my circuit is simply a modified extension of the data sheet, but that's the effect I perceive that I believe might be inherent in the block.

Jacob

I agree Jack. Afterall, perhaps the most commonly used reverb these days is the Boss RV-5, and it's widely held that it's best mode is the modulated setting. I use it that way.

My experiments with the BTDR-2 has also seen a very musical effect come out. What I appreciated is the 'chimey trails,' which is the worst description compared to the actual effect. I've utilized that stereo effect to create a bit of a variable dwell circuit, allowing for the breadth of both of the stereo outputs to just a single output. I find that with both fully engaged, there's an amount of 'shimmer' for lack of a better term. It's like an upper octave has been added, but so quietly that you almost don't believe it's there.

That's just what I hear messing around on my breadboard. The Prototype pedal is gonna be ready soon.

Jacob

er... it's a timmy!

I noticed the two layer thing. That's pretty neat, case it's rare to see that with double sided etchings. They're challenging I know.

Jacob

If it's cutting above 15KHz, that's low pass filtering...

Jacob

So, is there some general guidelines to keep in mind when ordering parts?  Like this brand is better than that brand, use audio grade electrolyte caps, look at this value on IC's etc?

I haven't seen a single, clear, definitive answer to your question thus far in my DIY experience. However, there are some basic rules that are sort of common knowledge:

1. Metal Film resistors give lower noise than other types. I use them almost exclusively. Some people find that other types work fine for them, and that's great, but it sounds like you would prefer metal film.

2. There is no 'rule' as to what brand, but rather different 'types' of capacitors make a difference. Film caps are often the first choice, and the types to choose from include polyester, polystyrene, and some others. Generally, Panasonic, Topmay and Wima caps are very common these days because our major suppliers supply them.

3. Electrolytics are known to be a noisy type of cap. I think that's partly why Tantalum caps are often recommended, but not the primary reason. I don't really know what the 'audio grade' types upgrade to make them better, but mostly I suspect it's marketing for extra money.

4. When it comes to ICs, generally it's not the brands but the type itself. For example, a TL071 is much, much quieter when compared to the classic 741 IC. Both are Single Op Amps, and are interchangeable, but it's obvious that the 071 is better for noise. The key with ICs and such is to experiment and switch out compatible ICs until you find one you like. They do sound different, and a lot of the difference has to do with noise.

5. On IC's again, because of the variety in their documentation, it's very difficult to point to one measurement value and say 'look at this' to find out their noise issues. Most of the time, they only give the data that sets them apart in a better way. The engineers in the crowd might give you an answer, but lets say that most of the DIY world has sussed out the good ones, and the lists are around. One rule of thumb might be that the more expensive an IC is, chances are high there's something that sets it apart.

Jacob

I bet it's a red 10nF Wima Cap...

Great work Dane, I like how slick it looks.

Jacob