From schematic to stripboard: Power Filtering

zelcanada

zelcanada

New member
I've been spending a lot of time playing with my breadboard, and now I'm on to the next step: moving a circuit to strip board to make a pedal enclosure! I've downloaded DIY Layout Creator (thanks to some great posts on here!) and picked a simple circuit to start with. I'm using the treble boost circuit from Coppersound's website, because it seems like a fairly simple circuit to start with, and it sounded great on my breadboard:

1753019026559.png

Here's my question though: there was a part of the instructions from Coppersound that talked about power filtering, which seemed important. It gave a little schematic for it:

Power filter.png

When designing the stripboard layout, how does this fit into the schematic of the entire circuit...? Is the LED in this diagram my LED for the pedal (to signal on and off)? If so, how do I connect it to the foot switch? If so, shouldn't it have a resistor?

I want to do this properly, and I'm excited to try and do the layout myself... I think I'll be fine with the first schematic, but I want to make sure I'm not forgetting anything when turning my schematic into "reality". I just can't wrap my head around how this power filtering part "connects" with the whole circuit design.

Thanks!
 
There is no LED in that diagram, the 1N4001 is a reverse polarity protection diode. I personally wouldn't use a diode parallel to ground like this, but that's another subject.

The +9V point in your power filtering schematic connects to all of the +9V points in your treble boost schematic.

Modern schematic software doesn't require you to draw a line between all of those points, you can flag them with nets (+9V) and it is assumed that those points are all the same.

For the sake of your stripboard layout, it would look something like this:

1753020034070.png

And like I mentioned, I would reorient the reverse polarity protection diode:
1753020119760.png
 
Robert said:
There is no LED in that diagram, the 1N4001 is a reverse polarity protection diode. I personally wouldn't use a diode parallel to ground like this, but that's another subject.

The +9V point in your power filtering schematic connects to all of the +9V points in your treble boost schematic.

Modern schematic software doesn't require you to draw a line between all of those points, you can flag them with nets (+9V) and it is assumed that those points are all the same.

For the sake of your stripboard layout, it would look something like this:

View attachment 99310

And like I mentioned, I would reorient the reverse polarity protection diode:
View attachment 99311
Click to expand...
This is very helpful!

But what is this in the diagram?

1000026747.png

I assumed it was an LED... It's not a symbol I'm familiar with...
 
Correct. The top line is the positive lug, bottom is the negative lug.

The (unconnected) center line is the battery lug. It connects to the positive lug when nothing is plugged into the DC jack.
 
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