Hi all!
I put the Galileo on a breadboard to see if I like it (turns out I really do). So I compared the different schematics on the interwebs, the ones I've found anyway.
I think it was traced first on FSB by juansolo: Link
Then there's the PPCB Bohemia schematic: PDF
And the Aionfx Gaia Mk. II: PDF
Both PPCB and Aion have a 1u cap after the output buffer, juansolo has a 2u2 there. I tried both, doesn't seem to make a difference. So 1u seems enough.
But PPCB has a 10n cap to ground in front of the volume pot, where juansolo and Aion have a 1n cap instead. I tried both on the breadboard and 10n seems to take away too much treble, the pedal feels more jangly with the 1n. Is it possible that 10n is a mistake? In the pedal's manual the tone knob is described as a pure treble control anyway. So you can take away treble as you like anyway using the knob.
By the way, what initially put me off a little bit was that I seemed to have a different treble drop when I switched off my (true-bypass) delay that's following the Galileo. So basically the Galieo going directly into the amp's input had a tad less treble compared to when the delay was inbetween the Galileo and the amp. So I started wondering if maybe this could be thanks to the 250k pot at the output.
Then I found a post from Chuck regarding the PPCB Covert (link). The covert is pretty similar to the Bohemia at the output. Chuck wrote that he used a 50k pot in his Covert. So I tried a 50k and that fixed my treble loss, too. So some output impedance issue I reckon due to 250k pot.
So I guess I'll go with a 1n cap to ground followed by a 50k pot. I think buying a 8€ (can't even remember the price, really) breadboard has been my best purchase in recent years. Trying stuff out on it before boxing something up is really worth the extra effort ;-)
I put the Galileo on a breadboard to see if I like it (turns out I really do). So I compared the different schematics on the interwebs, the ones I've found anyway.
I think it was traced first on FSB by juansolo: Link
Then there's the PPCB Bohemia schematic: PDF
And the Aionfx Gaia Mk. II: PDF
Both PPCB and Aion have a 1u cap after the output buffer, juansolo has a 2u2 there. I tried both, doesn't seem to make a difference. So 1u seems enough.
But PPCB has a 10n cap to ground in front of the volume pot, where juansolo and Aion have a 1n cap instead. I tried both on the breadboard and 10n seems to take away too much treble, the pedal feels more jangly with the 1n. Is it possible that 10n is a mistake? In the pedal's manual the tone knob is described as a pure treble control anyway. So you can take away treble as you like anyway using the knob.
By the way, what initially put me off a little bit was that I seemed to have a different treble drop when I switched off my (true-bypass) delay that's following the Galileo. So basically the Galieo going directly into the amp's input had a tad less treble compared to when the delay was inbetween the Galileo and the amp. So I started wondering if maybe this could be thanks to the 250k pot at the output.
Then I found a post from Chuck regarding the PPCB Covert (link). The covert is pretty similar to the Bohemia at the output. Chuck wrote that he used a 50k pot in his Covert. So I tried a 50k and that fixed my treble loss, too. So some output impedance issue I reckon due to 250k pot.
So I guess I'll go with a 1n cap to ground followed by a 50k pot. I think buying a 8€ (can't even remember the price, really) breadboard has been my best purchase in recent years. Trying stuff out on it before boxing something up is really worth the extra effort ;-)
