Akashic Guitar effects circuit lookup
GAINTREBLEVOLUME

Enclosure not stated · 3 knobs

Tagboard Effects

Klon Centaur Silver EditionVerified

Based on the Klon Centaur· 49 other boards clone it

Category
Overdrive
Controls
Gain · Treble · Volume
Build
Vero· 21×24· 33 cuts, 13 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
BYOC, Klon, Overdrive

From the post

Keith at BYOC reverse engineered a silver edition Klon when developing a PCB and noticed an error on soulsonic's 2009 schematic which was a couple of swapped resistor values around the Treble pot. He also noticed a few value discrepancies which probably just amount to the difference between the gold and silver Klons. The swapped resistors have been corrected in all Klon layouts on this site but I didn't want to just make the other changes to the existing layouts as I would like to keep the gold version up for those who would prefer to build it, and so I thought this version deserved its own thread.

If you prefer to build this kind of circuit on PCB then the BYOC kit can be found here:

http://buildyourownclone.com/effects-pedals/silverpony.html

I don't know if they are going to start selling the PCB separately but you can of course enquire if you'd prefer to go that route.

Now I can hear some subtle differences when at the upper and lower end of the Treble pot, which will very probably be down to tolerance differences in the pot itself which could be as much as +/-20%. I have to say in the more central positions I can't really hear any significant difference at all. At most of the demo settings they sound identical to me, and at some the Silver Pony sounds a bit fuller. Personally I preferred the Silver Pony. Great job Keith.

and the corrected schematic

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 41 rows

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Check before you build · 1 value the reader of this layout was not sure of
  • 430K right of IC1 (between 68n and 10K): printed clearly, unusual value (422K in the original Klon)
RefValueNormalizedTypeNotes
Resistors 17
×147R47read from the layout by eye
×2560R560read from the layout by eye
×21K1kread from the layout by eye
×21K51.5kread from the layout by eye
×11K81.8kread from the layout by eye
×34K74.7kread from the layout by eye
×15K15.1kread from the layout by eye
×210K10kread from the layout by eye
×215K15kread from the layout by eye
×122K22kread from the layout by eye
×227K27kread from the layout by eye
×147K47kread from the layout by eye
×268K68kread from the layout by eye
×4100K100kread from the layout by eye
×1390K390kread from the layout by eye
×1430K430kread from the layout by eye
×21M1Mread from the layout by eye
Capacitors 13
×1390p390pread from the layout by eye
×1560p560pread from the layout by eye
×12n22.2nread from the layout by eye
×13n93.9nread from the layout by eye
×127n27nread from the layout by eye
×268n68nread from the layout by eye
×182n82nread from the layout by eye
×2100n100nread from the layout by eye
×1330n330nread from the layout by eye
×71u1uread from the layout by eye
×24u74.7uelectrolytic; read from the layout by eye
×147u47uelectrolytic; read from the layout by eye
×1100u100uelectrolytic; read from the layout by eye
Diodes 5
D1D9ED9Elegend: D1 and D2 are magic (try Russian D9E); read from the layout by eye
D2D9ED9Elegend: D1 and D2 are magic (try Russian D9E); read from the layout by eye
D31N47421N4742 / 12Vzener; read from the layout by eye
D41N40011N4001legend: 1N5817 will get closer to 18V; read from the layout by eye
D51N40011N4001legend: 1N5817 will get closer to 18V; read from the layout by eye
ICs 3
IC1TL072TL072read from the layout by eye
IC2TL072TL072read from the layout by eye
IC3ICL7660SCPAICL7660SCPAread from the layout by eye
Potentiometers 3
GainB100KB100kPotentiometerdual; read from the layout by eye
TrebleB10KB10kPotentiometerread from the layout by eye
VolumeA10KA10kPotentiometerread from the layout by eye

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