dual mosfet booster

[ryani]

I just had an idea last night, and I want to see if there are any considerations I hadn't thought of.  I was planning on building a dual mosfet booster just like the super duper 2-1.  Well, just like it in functionality anyway, I don't want to start another firestorm, I realize it probably doesn't sound like the super duper, but it will have one boost cascading into another boost which has a master volume.
 Well, I breadboarded just one boost and I was testing it before and after my overdrive.  Well that was a mistake, cause I like both.  It's cool before the overdrive so I can get more drive+volume, but it's cool after to keep the same level of distortion with just more volume, so I had a dilema.  I was planning on putting two in one box, for portability reasons and because the boxes aren't cheap, for me anyway.  Then I realized I could have my regular psuedo super duper with two extra phone jacks.  I would use jacks with the normally closed lug and connect those together.  Then I could connect the out of the first booster to one jack and the the in of the second booster to the out jack.  With plugs in only the normal in jacks (one connected to the in of the first boost and one connected to the out of the second boost), it would function normally.  However, if I plugged in to either of the two extra jacks, the connection between the two boosts would be broken and the pedal would function as completely independant boosts, each with it's own in and out jacks.  So, I could use the one pedal like separate boosts before and after my overdrive.
 Sorry, that was a long explaination.  Anyway, is there anything I'm overlooking that would negatively effect my sound?
Thanks
Ryan

[Samuel]

That sounds like a very cool idea - basically a SuperDuper 2in1 with an effects loop. My suggestion would be to make sure you have an output capacitor after the first booster, (and an input cap in front of the second) for signal politeness.

[petemoore]

If it doesn't sound a'dvers'e, in the case of the Mosfet boost, that would do it for me.
 Running boost before/after distortion, should be N/P, attenuation between stages keeps things from overloading undesirably.
 I ddin't really understand a question, I think I see what you're wondering, if it sounds mushy or nasty clipping occurs, then you have an issue, probably best solved by eliminating a stage or turning some knobs.
 I try to have Distortions with ample output, Na/P considering all the buffers, boosters etc., then Boost a touch on the input [or boost teh tar out of it]. Using an SPST for preset stompable output cut/boost is nice to have on one of the attenuaters.
 Try adding/subtracting a 100k resistor across the outside lugs of a' 100k output pot, adjust value for amount of attenuation cut/boost. Start with a larger or smaller resistor and pot.

[dosmun]

I built a Mosfet booster like you described minus the Master Volume.  Basically just 2 Boosters in one box.  Works great if you want to have one at the front and one at the end of your effects chain.

[ryani]

thanks for the suggestion.  Actually those capacitors are already there.  Someone who knew what they were doing might intigrate the two boosters better, but I am not one of those people, so I was planning on just using two booster circuits both with in and out caps.  But now that you mention it, during normal operation (one boost cascading into the other), should those two caps be taken out of the circuit?  if it doesn't matter either way, I just as soon leave them in all the time.

[petemoore]

Coupling caps between gain stages...I think that's it.
 I see Cap and resistor paralleled between some stages, for voicing/attenuation I believe.
 Mosfet/Jfet transistor I belive you can do without an input cap because 'no' current passes through the gate.