Another Paragon

C

caiofilipini

Well-known member
I've been meaning to try this for a while, so I finally got around to it: another Paragon build, this time without the charge pump and using carbon comp resistors in the signal path like the original. I had some of those Panasonic film caps at hand, so I threw those in there too. 1S1588 and BA282 diodes.

Went with a blackout kind of vibe on a Gørva S90 enclosure and black MXR-style knobs.

The veredict? Add me to the list of folks who prefer this one at 9V. I tweaked the presence trimmers based on how they sounded stacked with the tone knob at noon on both sides. I'm very happy with how it sounds! It's a lot closer to the one original KoT I got the chance to play recently.

PXL_20211029_024553764.jpg

PXL_20211029_024620621.jpg

PXL_20211029_024954295~2.jpg
 
''Add me to the list of folks who prefer this one at 9V''
Click to expand...
Newbie here, do you mean...
1. Having it as it is intended by pedalpcb, feeding it 9v with the internal 9v to18v pump?
or
2. Getting hid of the internal 9v to 18v pump and running the whole circuit at 9v?
 
Ariel said:
Newbie here, do you mean...
1. Having it as it is intended by pedalpcb, feeding it 9v with the internal 9v to18v pump?
or
2. Getting hid of the internal 9v to 18v pump and running the whole circuit at 9v?
Click to expand...

Numero dos.
 
Ariel said:
Cool, In this case, would you be kind to do a step-by-step guide towards how to do it? *explain it like i'm five* please.
Click to expand...

I have a Paragon Mini so I’m not the best authority on this but I imagine you jump Pin 1 and 8 on the Charge Pump pads and remove C22.
 
This is it:

Paragon (KoT)

There are four toggle switches on case (instead of DIP s/w on PCB). Using carbon film resistors and carbon composition resistors like an original KoT. MSPA18 transistor's emitter-base was used for MA856 diode and it sounds really good ! I don't need 18V so charge pump IC isn't on PCB.
forum.pedalpcb.com forum.pedalpcb.com

That, plus leaving the charge pump out completely.
 
Is there a guide on which components to remove and which jumpers to add (if any) when removing the charge pump? My power adapter has 18V outputs and I'd rather avoid the noise risk associated with the charge pump.

Edit: if not, maybe that's something that can added to the build doc @PedalPCB?
 
giovanni said:
Is there a guide on which components to remove and which jumpers to add (if any) when removing the charge pump? My power adapter has 18V outputs and I'd rather avoid the noise risk associated with the charge pump.
Click to expand...

The post I referenced earlier has everything, I used that one as reference, then double checked against the KoT schematic that's been traced by the community, it checks out:

Paragon (KoT)

There are four toggle switches on case (instead of DIP s/w on PCB). Using carbon film resistors and carbon composition resistors like an original KoT. MSPA18 transistor's emitter-base was used for MA856 diode and it sounds really good ! I don't need 18V so charge pump IC isn't on PCB.
forum.pedalpcb.com forum.pedalpcb.com

For the record:

Bump C10 and C11 up to 100uF
Omit the charge pump, C21 and C22
Jumper D14 and D15
 
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