Octrarock components

[spi]

Hi, sometimes octave pedals work better when some components are matched--for example, I hear the Fuzzy Foxx you should try to get diodes with the same Vf. Does Octrarock have any components that should be matched?

 

[Robert]

You could match the two BAT46 diodes in the octave up circuit. (D8 and D9, on opposite sides of the LM348N IC)

They weren't tightly matched in the original, but you could...

 

[DGWVI]

D8 and D9 can be matched for vF

R36 and R37 could also be value matched to ensure that the inverting portion of the wave rectifier is the same level (unity) as the non-inverting