The Sun Faces evil twin. Buzzy, raspy and no clean up at all!
The transistors part numbers remains unknown but the Hfe should be almost almost twice as high compared to the usual recommended germanium Fuzz Face gain.
More info HERE.
The Sun Faces evil twin. Buzzy, raspy and no clean up at all!
The transistors part numbers remains unknown but the Hfe should be almost almost twice as high compared to the usual recommended germanium Fuzz Face gain.
More info HERE.
You're a busy guy at the moment!
ReplyDeleteThis looks nice :)
ReplyDeleteVerified now. Build it just because (the collector in me, I supose)... And, after all, there isn't much to build, there is? ... :O) But surprise me a lot. Used 2sb492 (one with 270hfe, the other with 350 - imagine the storm)... It can get very mean to the speakers... A lot of big and nasty sound from such a small thing!... Crucial the trimmer!...
ReplyDeleteThanks man,and take care!
Dragão
Thank you! Tagged.
ReplyDeleteFor npn transistor I just need to reverse the electrolytic caps?
ReplyDeleteYes, just flip the caps around.
DeleteAnd flip the power obviously. Positive ground becomes negative ground. I flipped the polarity myself a few weeks back because I had some higher gain NPN germs kicking around. I like it. I also added a power filter cap (probably 47u maybe 100). I was getting a little whine when cranking the volume. It fit nicely into row 7 between +&-.
DeleteUsed this beatiful layout to build a PNP fuzz face - trimmer for Q1 makes all the difference. Thanks - it's awesome :)
ReplyDeleteCould I make a silicon version of this. I can flip the caps,what other value changes would I need to make
ReplyDeleteYou can make a silicon version without flipping anything if you use pnp transistors. The 'flipping' has nothing to do with germanium/silicon. Generally silicon has higher gain and more high end, which makes them sound harsher. You can lower the gain by increasing the resistance from emitter to ground, and rebiasing the collector. You can round off the highs by adding a small capacitor between the base and collector. If you do both of these with the right values, it's possible to have a device that sounds very close to germanium.
DeleteCould I make a silicon version of this, what would I need to alter ?
ReplyDeleteI'm interested to build this as I've scored some super high hfe germanium transistors...but (I'm embarrassed to say) i don't know how to wire up a pedal with just a battery snap...I couldn't find a good diagram (do I have to run two ground wires from the board and link one to the jacks?)
ReplyDeleteHi Ian, battery snap black wire to stereo jack ring and red wire to positive ground. Ground from the board can go to one of the jacks. Or flip the caps to make negative ground (use NPN germs) and wire as a regular pedal
DeleteThank you... so stereo jack is a must?
DeleteUsing a stereo jack with mean the battery only uses power when a guitar lead is plugged into it.
DeleteAha! I get it. Thank you
Delete