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Re: Lovepedal Karl Fuzz.
Posted: 20 Dec 2012, 18:16
by roseblood11
Ups, the layout has an error: The output cap (C5) must be connected to the collectors, not the emitters. Quick and dirty workaround: Desolder the upper leg of C5, pull it out of the hole and connect it to hole f7 with a piece of stranded wire.
Re: Lovepedal Karl Fuzz.
Posted: 20 Dec 2012, 19:39
by kinski
NICE! Works beautifully now. Pretty cool fuzz. I think I'll give it a 1590A for a home! Thanks a ton roseblood11!
Re: Lovepedal Karl Fuzz. [traced]
Posted: 20 Dec 2012, 21:03
by roseblood11
Verified version...
I changed the power supply filtering to match the schematic. Shouldn't make any difference...
Re: Lovepedal Karl Fuzz.
Posted: 11 Jul 2015, 19:17
by johnk
if anyone's interested here's a verified PCB layout for etching that I built of it:
Re: Lovepedal Karl Fuzz.
Posted: 11 Jul 2015, 20:33
by mictester
A very significant improvement - change the input pot for either 100k or even 500k. This raises the input impedance a lot, and makes the pedal respond better to the guitar controls. It becomes very much "brighter" too so I put 15n across the output pot. It's probably not the way the thing was meant to work, but if the input level is just right, you can get some nice octave effects going on.
Re: Lovepedal Karl Fuzz.
Posted: 11 Jul 2015, 20:35
by sinner
Thanks Chris. 15nF seems to be hell of a lot
Re: Lovepedal Karl Fuzz.
Posted: 11 Jul 2015, 21:22
by johnk
i'm digging mine just the way that it is with my P bass.
Re: Lovepedal Karl Fuzz.
Posted: 12 Jul 2015, 05:22
by johnk
i mounted mine in a 1590G:
