increase RM boost pot value via resistor?

[formerMember1]

i wanted to try a higher value pot then my 10k boost pot in my RM.  I wanted to try more gain.  Can't i add a resistor somehow to increase value?  Like say the pot is 10k, if i add 8.2k resistor in series with teh 3rd lug won't that increase the pot from 8.2K to 18.2K?

thanks :wink:

If the above is possible which lug?

[brett]

Hi.
Are we talking the axis fuzz or the octavia or what?

If it's a volume pot, changing its value won't usually change the volume available.  If it's a gain pot on either of the above, a higher value will simply decrease the minimum gain and leave the maximum the same.  (That's why in an axis fuzz I have sometimes used a 1k pot instead of the 2.2k standard (which is also shown as a 10k in some schematics)).

cheers

[formerMember1]

No  the pedal is a Rangemaster clone,  I was just wondering how i could increase the gain in my rangemaster, i don't want to change transistor, i just wanted to see if i like it better with more gain,  i figured increasing the boost pot would do it, but instead of buying a higher value i was wondering if i could add a resistor to it in series to increase it.

I thought you were supposed to use a audio taper pot for the boost pot in a RM,

thanks :wink:

[petemoore]

The schematic shows that pot IS the bias resistor for the collector.
 You could try adding a little resistance between  the top' lug and Vsupply, then taper the pot down if the bias isn't 'kosher', so there is still ~ 10k R between collector and supply.

[formerMember1]

cool thanks, i ll try that,