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is it the "pulldown resistor" that we are talking??..the switch popping might happen because of the sudden flow of the current to the circuit when switching..

that's a very good point of view mr blueshawk. maybe its true that in capacitors issue, a more expensive one doesn't give that kind of a lot of differences in the performance/ sound.. im just in a question where some pedal manufacturers mostly botique one's sometimes/always said that their pedals are made from high quality components..( talking only bout capacitors and resistors) and claiming that using them in their builds can improve the sound of the pedal compared to the commercial manufacturers which uses components of a lower quality due to mass production..

another thing is silver mica vs ceramic capacitors??.. some said that to achieve hi fi sounds, try to replace ceramic caps with equivalent film capacitors in value or silver mica caps..

i generally play standard rock guitar but also i pay variety of music styles..

so do we therefore conclude here that not all times that film capacitors sound better than those mylar capacitors??.. you know im not an EE or ECE, im a Mechanical Engineer who has a passion in playing music and become active in electronics hobbying in making guitar pedals..

Thanks Jacob for answering my question. Now I know that a Green Mylar Capacitor is a kind of a film capacitor. I'm making circuit prototypes in breadboard by using those green mylar capacitors. I'm satisfied with the results when the circuit runs.

But I wonder if I can improve the sound if i'll replace those green mylar capacitors that are commonly sold through electronics store here in our country by, lets say, boxed metal film capacitors, which are rare in kind here and a lot more expensive. I'm just wondering if I can Improve the sound by replacing those green mylar capacitors with much more expensive boxed metal film capacitors?

Talking about accuracy of those Green mylar capacitors which are common here, common tolerances are K (plus-minus 10%) or J (plus-minus 5%). those are the most common tolerance ranges of those green mylar capacitors here, being "J" the best range.

I bet its a 47 picofarad value of ceramic capacitor..

I wanna ask if there's a lot of big difference in using MYLAR capacitors instead of those film capacitors?? I'm using those Green MYLAR Capacitors instead of those RED/ORANGE FILM capacitors that many botique pedal manufacturers use (Wampler, Lovepedal, etc).. Here in our country in Philippines, most electronics store only have that green MYLAR capacitors.. anyone can help?.. thanks