Blendable Klon-type Overdrive

[magikker]

Ah ha....
I had guessed that the in betweens were the issue...

So, I guess we need it to be crisper clean on the clean side?

[markm]

The in-betweens are fine, the extremes are brutal! 

[magikker]

it just struck me... at the extremes you are looking at a full gain distortion plus or a full gain micro amp right? I'm rarely a fan of any of my pedals at full gain... Were as at the extremes you probably want a 75% gain micro amp or 75% gain dist+ and none of the other effect?.... Is that right?

[markm]

it just struck me... at the extremes you are looking at a full gain distortion plus or a full gain micro amp right? I'm rarely a fan of any of my pedals at full gain... Were as at the extremes you probably want a 75% gain micro amp or 75% gain dist+ and none of the other effect?.... Is that right?

Well, the D+ is a bit different than the 250 but, yes. I would say you are correct however, there will always be a bit of one on the other's full setting.
I myself don't go for Max Gain either, just a bit of break-up 'cause afterall, I play Country!
But, it gets unusable in either extreme where as the individual effects are usable by some at extreme settings.
The sound was, to use a better phrase, "not - pleasant" on the extremes.
A bit clearer would be the phrase, "it sounds like Crap!". 

[freddd]

When I built it on bread board I ended up lowering the gain available in both sections quite a bit, I just increased the resistors that head for ground after the gain pot. I can't remember the exact values I had - they still needed some tweaking anyway.

[Ben N]

Well, the D+ is a bit different than the 250 but, yes. I would say you are correct however, there will always be a bit of one on the other's full setting.
I myself don't go for Max Gain either, just a bit of break-up 'cause afterall, I play Country!
But, it gets unusable in either extreme where as the individual effects are usable by some at extreme settings.
The sound was, to use a better phrase, "not - pleasant" on the extremes.
A bit clearer would be the phrase, "it sounds like Crap!". 

So this is meant to be an Old 97s pedal? 

[markm]

When I built it on bread board I ended up lowering the gain available in both sections quite a bit,

Now that would not surprise me at all!

[Bernardduur]

I just finished this pedal, and it simply ROCKS!!!!!

The max settings are nice as you get a clean boost as a Distortion + like tone but the inbetween sounds are really killer as they tend to go from slight OD's to more distortion....... one problem is that the volume increases as I tend to go to the max settings..... in between the volume is quite lower then the extremes.

I run it now on 18V; they are just a microamp and a OD250. I simply placed an IC buffer stage / splitter before to get enough sound to both sections

[markm]

Did you build freddd's circuit?
So, you have a buffer on the input and that's all?

[Bernardduur]

Did you build freddd's circuit?
So, you have a buffer on the input and that's all?

Almost

I didn't use a buffer on the end but placed it to the start; the signal goes through two mix resistors to the 100k (log) volume pot

I also didn't add the trimpots yet; they'll come later I guess as I will replace the mix resistors with trimpots. I also added a cap over the 250 diodes.

Oh, and I kept the pedals individual 1/2V+ maker intact; I dunno if that is advised over one 1/2V+ maker for all positions.

I'll make a schematic of it


It sounds really really good!

[Bernardduur]

Schematic link

[markm]

Schematic link

Thanks for that link Rogier, I'm going to have to try this thing out! 

[Bernardduur]

Yes;

I would love to have the volume a little bit more even but it is a GREAT pedal to play with!

[freddd]

Great stuff! It works... Interesting changes your made there. Are you gonna attempt to solve the volume issues?

[Bernardduur]

Yep; I am quite busy now (although my bass needs me first)

Noticed some mistakes in the schematic I will undo quite soon;
- The output cap on the microamp section is 15 uF, not 10 uF
- The volume pot is log; the program has no log pots
- Both gain potmeters are a double potmeter as described in the before section

[markm]

Great stuff! It works... Interesting changes your made there. Are you gonna attempt to solve the volume issues?

Probably just an adjustment of the 10K mix resistors in the schem.
Although, would this not effect the highs a bit?

[Bernardduur]

Yes, it would I guess;

So therefor I go to mixing volume trimpots;

[markm]

So, what the consensus on the bias network?
Should it be shared amongst the two individual circuits -or- should each side have it's own since the values are different?

[Bernardduur]

No opinions I guess

When I connect all pedals to the same bias network the "sound" of the individual effects get less. So keep em in!

[ppatchmods]

did anyone ever get this thing working? the links are dead.