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fuzz guys advice
Posted: Fri Mar 05, 2010 9:16 pm
by chisa
currently trying to build my own silicon fuzz. however, the only sound i am gettting out of it is a spluttering as though it is gated. is this down to a fucked transistor?
Posted: Fri Mar 05, 2010 9:41 pm
by Fran
Are they in the right order? One should be the 'hot' (forgot the correct terminology its been 4 years since i built Fuzz pedals) or the three legs could be in the wrong order. I had this problem but like i said it was a long time ago.
Posted: Fri Mar 05, 2010 9:58 pm
by chisa
i have em in the right way, however, on 1st attempt i may have put them in the wrong way and fucked them
did you get the pickups ok?
Re: fuzz guys advice
Posted: Fri Mar 05, 2010 11:18 pm
by NickS
chisa wrote:currently trying to build my own silicon fuzz. however, the only sound i am gettting out of it is a spluttering as though it is gated. is this down to a fucked transistor?
Not necessarily. My son built a silicon fuzz face and that's exactly what happened. I put the 1K gain pot the other side of the bypass capacitor and used a 2K2 in the second transistor emitter instead. Works great now. What circuit are you using?
Posted: Fri Mar 05, 2010 11:27 pm
by chisa
http://www.aronnelson.com/gallery/main. ... 1.gif.html
working to that
checked the soldering. have had it kinda working but got a load of RF noise with guitar vol at min. there does seem to be a problem at the gain pot though i am unsure what it is. i have rigged it with a 3pdt switch with an led and works fine on bypass and led working correctly so the circuit is getting power.
Posted: Sat Mar 06, 2010 12:02 am
by NickS
Just try disconnecting the 1K pot connection to ground (1K-1) and putting a 2K2 resistor from the emitter (e.g. hole next to 1K-3) to GND. I'm pretty sure that's the value I used.
Posted: Sat Mar 06, 2010 12:18 am
by Fran
chisa wrote:i have em in the right way, however, on 1st attempt i may have put them in the wrong way and fucked them
did you get the pickups ok?
Yeah, thanks mate
It sounds like the transistors are'nt right fo sho. Silicon should be reliable though, may be better when one of the FX guys reads this.
Posted: Sat Mar 06, 2010 4:04 pm
by chisa
NickS wrote:Just try disconnecting the 1K pot connection to ground (1K-1) and putting a 2K2 resistor from the emitter (e.g. hole next to 1K-3) to GND. I'm pretty sure that's the value I used.
nice you're a genius!
why does that work then?
Posted: Sat Mar 06, 2010 4:23 pm
by chisa
although now the fuzz pot is either on or off. do i need to ground it?
Posted: Sat Mar 06, 2010 5:06 pm
by chisa
chisa wrote:although now the fuzz pot is either on or off. do i need to ground it?
solved this, i was using a 1000k pot instead ok 1k. doh!