Mosfet Booster for bass?

[yano]

I'm planning on building Mosfet booster, but I'd like to use it with bass as well. Will the .001 uF cap filter bass frequencies? If so, what value would you recommend?

[petemoore]

Socket the cap...but that's just me.  IIRC I had to go pretty small on that [with guitar] to get much bass cut. Switching in another cap with an SPST  is an option for tuning it for use with guitar or bass.

[yano]

one other thing,

Is this fairchild BS170 going to work? it has an internal diode across the S to D, can this diode replace the zener? or will I still need the zener?

http://www.fairchildsemi.com/ds/BS/BS170.pdf

[Johnny G]

as far as i know the zener does the job of that diode by stopping satic damage and it also prevents the mosfet being fried because to great a signal is sent to the gate. if it has the internal diode then the only thing the zener would od is protect against overvoltage