smallsound/bigsound - mini  [traced]

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Re: smallsound/bigsound mini

Postby natron_mn » 31 Oct 2017, 16:23

Just discovered this awesome thread. I was going to attempt to build this little monster, but had a question first.

What is the minimum voltage on the 220uf cap? I have some of those cool low profile Lelon caps, but they are only rated 10V.

I'm not sure how to tell from a schematic what the voltage requirements are for a given component.
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Re: smallsound/bigsound mini

Postby smallsnd/bigsnd » 31 Oct 2017, 18:36

natron_mn wrote:Just discovered this awesome thread. I was going to attempt to build this little monster, but had a question first.

What is the minimum voltage on the 220uf cap? I have some of those cool low profile Lelon caps, but they are only rated 10V.

I'm not sure how to tell from a schematic what the voltage requirements are for a given component.


you should always use caps that are rated higher than the supply voltage - get some 16V caps to be safe. :thumbsup

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natron_mn (31 Oct 2017, 18:50)
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Re: smallsound/bigsound mini

Postby natron_mn » 31 Oct 2017, 18:57

Thanks Brian!

Is the supply voltage just 9V? More generally, is the supply voltage for any pedal with a 9V power supply simply going to be 9V? Or, do voltages change within the pedal depending on the transistors/ICs?

In this schematic, it looks like there is only a diode and resistor between V+ and the 220uf resistor. So the diode is simply a circuit protection diode and won't change the voltage hitting the 220uf cap?

Sorry if this question is ig'nant. I'm wanting to learn how pedals function as opposed to just building premade pcbs with instructions (a la Madbean pcbs). Those are fun to build, but I'm not really learning anything other than how to solder and follow instructions!
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