I messed around today with my own Vox ValveTone 810..It's a great pedal overall but I wanted a bit more low end and more gain from it...The red caps are all the upgrades that were made and 1 blue metal film resistor..
The changes I Made...
R1 was lowered to 3.3k from 4.7k (Gives you more gain)
C2 was increased from .047 mfd up to .1 (More lows)
C8 was increased to .047 from .022 (This is the input cap)More lows..
The other caps were left as the same values but I used better CDE caps...The stock TI RC4558 P was left in this pedal because I Like it...Keeley really pushes this chip quite a bit if you read about his mods..I normally put an 8 pin gold chip holder in all of my pedals but this one didn't need it...
I also changed the non-viewable yellow LED to a brighter red 5mm LED...
John
The changes I Made...
R1 was lowered to 3.3k from 4.7k (Gives you more gain)
C2 was increased from .047 mfd up to .1 (More lows)
C8 was increased to .047 from .022 (This is the input cap)More lows..
The other caps were left as the same values but I used better CDE caps...The stock TI RC4558 P was left in this pedal because I Like it...Keeley really pushes this chip quite a bit if you read about his mods..I normally put an 8 pin gold chip holder in all of my pedals but this one didn't need it...
I also changed the non-viewable yellow LED to a brighter red 5mm LED...
John
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