.1uf cap in place of .15uf cap in Vox Tone Bender?

[leeyoungun]

Have a ton of .1uf caps, but no .15uf. Will there be an audible difference in tone between the .1 and .15? I'm assuming it's partly controlling the treble content?

[Pedal love]

It shouldn't affect the sound too much, provided the other components are the same as in the schematic.

[DiscoVlad]

It will affect the sound if it's in a place where it has an effect on how it sounds...

Of course if it's in a place where it doesn't (eg. de-coupling an IC), it won't.

if you must have a .15uF capacitor, and only have .1uFs available, you can use a network of capacitors which add up to that value



Capacitors in series behave like resistors in parallel, caps in parallel behave like resistors in series.

Series: Ctotal = 1/(1/C1 + 1/C2...+1/Cn)
Parallel: Ctotal = C1 + C2... + Cn

So, C1, and C2 being in series make a combined 0.05uF capacitor, which is then in parallel with C3.

0.05uF + 0.1uF = 0.15uF.

[Solidhex]

Yo

  If you have a .22 I'd use that. There's a lot of treble emphasis in the Vox Tone bender already.

--Brad

[petemoore]

  Have a ton of .1uf caps, but no .15uf.
   Will there be an audible difference in tone between the .1 and .15?
  Sure, but this is a small value difference, might be hard to pick out blindfolded, especially if you're not used to it or the bass of the amp isn't sorta big.
  I'm assuming it's partly controlling the treble content?
  Seems like it's probably an input or output capacitor..in which case decreasing values decrease the amount of bass 'let in' or 'let out', in these positions they'll resist increasingly as frequency gets lower [blocking DC]...you may have seen graphs illustrate the resistance/frequency curves, not a sharp cut...what is it?...3db per octave?