Increase Skyripper volume.

[digi2t]

I was wondering if increasing the 390R resistor would increase my volume? Here is the schematic. The resistor in question is next to S4;



I'm not really keen on making the volume pot a 1M. I'm figuring that maybe 680R might be good.

[PRR]

Yes.

[joegagan]

 Wondering if the circuit is working right. Normally the skyripper is quite loud vs the bypassed signal.

[digi2t]

Thank you Paul and Joe.

Wondering if the circuit is working right. Normally the skyripper is quite loud vs the bypassed signal.

Yup, it's working fine. It's just I have other (read: louder) pedals in my arsenal, which the 'ripper has trouble competing with even switching between them. It's not missing much mind you, but my volume knob doesn't go to 11 or 12, which is what it needs, just a touch more.

[joegagan]

be sure and reset your bias on the trimmers for voltage on q4. the sound of the pedal especially in certain settings may change, even if the voltages are correct. i would suggest you leave the pedal as is and put a post-boost in a tbp loop with the skyripper so they come on simultaneously for safest operation.

thanks again for building ze skyripper!

[John Lyons]

Joe knows best but I put in a 1k in place of the 390 ohm to get more juice.

[joegagan]

not disagreeing with the concept, just cautioning that many of the interactive functions of the fuzz part feeding into the treble boost part were all carefully balanced, and when the volume of the fuzz portion changes, the risk of throwing off the balance of the intereactive bits exists.
not saying it won't work, or possibly even sound better, i just have not tried it and don't have time to try it right now. my gut tells me the pedal will be altered , probably not in a good way if the 390 is changed.

[joegagan]

for giggles,below is the one that i prefer people build the one above is out of print so to speak ( just in case this thread gets people thinking about building it )

[joegagan]

[John Lyons]

The 390 is in the FF circuit which is last in the pedal. By increasing that resistance isn't it just making the circuit louder?
(more resistance to 9v which is basically AC ground). The treble boost is before all this... Am I missing something?

[joegagan]

the stand-alone functions of the treble boost or fuzz are fine.

the functions where the rip control opens the feedback loop from out vol back into the treble boost, this was a delicate balance when all of this was configured. when the fuzz volume goes up, one cannot assume that the balance of these functions is not altered in an adverse way.

might be fine, i just don't know and don't want to make assumptions. my gut tells me it becomes a slightly different pedal when the 390 is altered.
a lot of people built the skyripper and told me they did not get the sounds they heard in my clips. trying to avoid that result as much as i can.

[digi2t]

Swapped it out for a 680R, and it works fine. Volume is boosted enough for the unit to be at unity with the rest of my pedals, plus a bit to spare. I did have to readjust the bias voltages, which was expected. Fuzz is set to -1.00 / -4.50, with the Range side sitting nicely at -6.90.

On the ripping side, everything is as it should be. All the classic, droning, motorboating, octave jumping craziness is as it was with the 390R, but louder.

Thanks to all for your input.

Cheers,
Dino

[joegagan]

glad to hear it!