Paragon mini (first pedalpcb build)

[Boba7]

nice clean build, where did you get the font paint stamp for the labels?

Thanks!
They’re cheap stamps I found online, those sold in a wooden box, you’ll find them very easily
Stazon ink and clearcoat.

 

[Funnel]

Looks Great, I like the stamp look. I have used metal stamps and sharpie, but it was more challenging to get a consistent result. Next time I might try with rubber stamps. If I'm not mistaken I'm currently using some of your mods for a dirt baby rom madbean.

 

[Boba7]

Looks Great, I like the stamp look. I have used metal stamps and sharpie, but it was more challenging to get a consistent result. Next time I might try with rubber stamps. If I'm not mistaken I'm currently using some of your mods for a dirt baby rom madbean.

I can't even remember the mods (except for the tap tempo I added), but I'm glad they're shared!

 

[culmer]

Do you happen to have any sound clips of this pedal?

 

[mattdrago]

Hey guys

First time working with a pcb from pedalpcb, and it went quite smoothly!

Just a KOT clone, with the latest updates from the freestompboxes forums:
- high gain / low gain resistor change (100k/1k)
- input cap is 22n instead of 10n
- low gain feedback cap is 47pf instead of 100pf
- 1N914 for the hard clipping diodes

For the soft clipping section I went with BA282, which are supposed to be exactly similar to the originals MA856. They sound very good, but I'm not sure 1N4148 would have been much different
I elevated the treble trimpots a bit with sockets, to allow a better access from the holes on the back of the pedals

That one is for a good friend of mine, I took my time to plan it and build it!

Cheers!

Very nice build! I'm curious about the low gain feedback cap being set to 47pf here instead of 100pf. Are you saying you did this on the low gain channel? If that's the case, does this change increase the overall gain on this channel, but just not as much as changing the resistor value from 1k to 100k?

 

[Boba7]

Very nice build! I'm curious about the low gain feedback cap being set to 47pf here instead of 100pf. Are you saying you did this on the low gain channel? If that's the case, does this change increase the overall gain on this channel, but just not as much as changing the resistor value from 1k to 100k?

Doesn't make any difference, and actually I now use 100p for both channels
No difference in gain, the cap would affect the treble response very slightly, but I'd have to calculate how.
But yeah, no difference at all

 

[mattdrago]

Doesn't make any difference, and actually I now use 100p for both channels
No difference in gain, the cap would affect the treble response very slightly, but I'd have to calculate how.
But yeah, no difference at all

Oh okay I gotcha I just finished building a Paragon Mini the other day and did a side-by-side comparison with my original Analogman KoT and honestly the only difference I could hear was that the Paragon Mini sounded like it had a bit less low end compared to the original. I haven't really analyzed the circuit at all to confirm anything, but I imagine there's a high-pass filter stage somewhere that determines the cutoff point where the low end frequencies start to get attenuated, so I was curious if changing that capacitor value was related to this. I guess I'll have to find the time to figure it out for myself lol

 

[Boba7]

Oh okay I gotcha I just finished building a Paragon Mini the other day and did a side-by-side comparison with my original Analogman KoT and honestly the only difference I could hear was that the Paragon Mini sounded like it had a bit less low end compared to the original. I haven't really analyzed the circuit at all to confirm anything, but I imagine there's a high-pass filter stage somewhere that determines the cutoff point where the low end frequencies start to get attenuated, so I was curious if changing that capacitor value was related to this. I guess I'll have to find the time to figure it out for myself lol

what did you use for input caps? 10n or 22n?

 

[mattdrago]

what did you use for input caps? 10n or 22n?

I used all of the original values given in the build document, so I used 22nf for the input caps. If I recall correctly, I'm pretty sure the input caps here are being used to block DC voltages from getting into the signal path, so I doubt it's filtering out any frequencies that are audible.