Foot Fault

Mike McLane

Mike McLane

Active member
I searched a number of threads on sourcing caps to fit the footprint on the PCB. The Pauper shows a couple of 100u electrolytic caps and the Nichicons I got from Tayda are much larger diameter than the footprint allowed. They are 50V so would something in a lower voltage be more what I'm looking for?
 
Generally people stick to 16v caps for 9v pedals, and 25v caps for 18v pedals— the higher the voltage rating of the cap, the bigger it is (generally speaking)
 
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I have some 50v that are tiny and I have some 25v that are huge, so go figure.

Tayda will put the measurements (in mm) on the site. You could measure yours to compare and see if there are any smaller ones available. If you can't find anything that will fit they have 100u tant caps that will save you some space. They only have 16v though, so that won't work if you're working with an 18v pedal.
 
I checked Tayda and Mouser and noted the physical size specs. Same thing on finding a "single space" 1u poly cap. Now I just have one other issue. FINDING SOMETHING IN STOCK!!!!! 🤬
 
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Mike McLane said:
I checked Tayda and Mouser and noted the physical size specs. Same thing on finding a "single space" 1u poly cap. Now I just have one other issue. FINDING SOMETHING IN STOCK!!!!! 🤬
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By my count you'll need two 100u and one thin 1u. If you're in the US send me a PM with your address (and verify the numbers needed) and I will send them to you.

@PedalPCB must have been feeling mean when he hid that little 1u cap in there! :ROFLMAO:
 
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I found them on Newark.com. Thanks so much for the offer. The only thing I think I'm still thwarted on is the B2M pot for the Son of Ben. Thanks again!!
 
Mike McLane said:
I found them on Newark.com. Thanks so much for the offer. The only thing I think I'm still thwarted on is the B2M pot for the Son of Ben. Thanks again!!
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You could solder some leads to the ends of these: https://www.taydaelectronics.com/2m-ohm-linear-taper-potentiometer-round-shaft-solder-lugs.html

And then use something like this to keep the knob size the same: https://lovemyswitches.com/potentiometer-adapter-sleeve-6-0mm-knurled-shaft-to-1-4-shaft-adapter/
 
I ordered some electrolytics from Tayda, 22uF IIRC, in both 16v and 50v (maybe it was 25v & 50v) — they were physically the same size ...

... then I found out why when I went to use the lower voltage. I thought I'd accidentally chucked a 50v back in with the lower voltage ones, so I checked the rest of the bag — they were ALL 50v. 😸


Sometimes, when the cap is too big or too tall, I'll just lay it down on top of adjacent components, if/when possible.
 
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