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DIY Stompboxes => Building your own stompbox => Topic started by: rx5 on November 20, 2003, 07:04:29 AM

Title: fuzz face help me debug....
Post by: rx5 on November 20, 2003, 07:04:29 AM
Just wondering maybe you guys could help me out...

Im refering to the unmodified fuzzface...

ok here it is:
===============

>330ohms/470ohms , changing its value (eg. 1K) would result to a higher signal level output

>8.2K , sometimes changed with 10K trimmer to bias the 2nd transisitor collector to 4.5VDC

>1K pot, changed it to 5K for more FUZZ...

>22uF, still the same value

>2.2uF, changed to lower value for less bass response...

>.1uF, same as above....

>adding a resistor in series (1-50K) with 2.2uF to increase input impedance...

my question is:
================
>what happens if I decrease or increase the value of the 33K ?? what would it lead to??
 
> what about the 100K?? how does it affect the circuit if increased/decreased   ?? Ive seen other circuits with value of 47K..other 56K...


BTW, im using CS9011 and CS9018..they have Hfe of 80-110....

-Ralph
Title: Try pots there
Post by: petemoore on November 20, 2003, 10:42:54 AM
that way you can find all the differences/sweet spots.
Title: fuzz face help me debug....
Post by: rx5 on November 20, 2003, 05:20:44 PM
ah ic... All components are tweakable.... :) maybe Ill just replace all resistors with trimmmers...hehehe :wink:
Title: Check the reads at runoff
Post by: petemoore on November 20, 2003, 05:31:20 PM
And GEO tech of the FF, if you havent already
 One of those runoff articles someone did pretty much just that I think,,a FF with only like one or two fixed R's on the board...fun to mess around with...somewhere Tim Escobedo [I think] has a Multi Face page with all different mutant FF's all over it.
  Some of those resistors need to stay near what they are, most of the Big differences you can find should be represented in one of the aforementioned articles