How can I improve fuzz control pot?

Started by nicko, July 11, 2005, 08:24:04 AM

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nicko

Hi, some time ego I've build silicon Fuzz Face and like the tone I have but what always bothers me is the fuzz control. All the good stuff starts to happen near the end of the pot like with the original FF.
I think that 1k anti-log pot wouldl fix that but these aren't available.
Is there something that can be done to make the control more even?
I tried bridging the pot with small resistor but nothing so far works right.
Thanks Nicko

corbs

while i was looking around for ways to fix my arion sad-1 - i found you could create your own log / anti log taper pots - under certain circumstances

petemoore

Small Bear purports to soon have pots available for FF gainpot use specifically...
 Or mess with the resistances/pot taper...here's another way...since the pots'll be available soon, my last chance to type about it...
 adjust so the min fuzz amount is what you want, pull the gain pot without upsetting the adjustment, measure, replace that with a fixed resistor used as a stop resistor, then the amount of added resistance to the stop resistor needed to reach max gain will be smaller, used the pot in series now with the stop resistor, and reduce the value of the pot by using a resistor across lugs 1 and 3...starting with a 1k pot, some resistors between 470ohm and 1k2 or so, you should be able to 'cajole' a nice taper that has 'less' minimum gain, but adjusts between moderate Fuzz and Full Fuzz...wherever you 'set' those.
 IOW instead of have adjustment between 0k-1k, you can start at 470ohm with a stop resistor in series with the pot and 'add' resistance until you reach max gain, whatever you want that to be, setting max with the pot resistance reduction resistor [on lugs 1 and 3].
 Now that I've typed all that, just wait and get the right pot or...
Convention creates following, following creates convention.

Johnny G

LET US INSTIGATE THE REVOLT,DOWN WITH THE SYSTEM!

MartyMart

I've had good results with a 4k7 linear pot, with 3k3 resistor lugs 1&2 and
another 3k3 lugs 2&3.
You end up with around a 1K5 lin pot, much more even fuzz control, worth
a try for sure :D
Marty.
"Success is the ability to go from one failure to another with no loss of enthusiasm"
My Website www.martinlister.com

nicko

Thanks a lot to all you guys, I'll try your suggestions. Maybe in the end I'll endup with the antilog pot anyway which seems to be what I really should have.