I have plastic capacitor, Is it sound good???

[mathflan]

HI

I'm building the pt-80 but I have only some plastic capitor like this :






SO, I just want to know if I have to buy polyester metal film like :



Is it the same???
does it sound differents??

Thanks for answers

Bye

[Eric H]

They will work fine. I like those box- type capacitors.

-Eric

[Peter Snowberg]

For clean effects, those box style caps are some of the best ones you could use.

Best luck on your build!

[mathflan]

thanks to yours answers..
ok so if you said that these plactic capacitor are good, I will use them.
but I don't like these box, it's a little "cold".

But why in the professional effect there are  polester film and not plastic capacitor??

[bwanasonic]

thanks to yours answers..
ok so if you said that these plactic capacitor are good, I will use them.
but I don't like these box, it's a little "cold".

But why in the professional effect there are  polester film and not plastic capacitor??

You have to consider the cost per-part for one thing. The difference between $.05 and $.20 might not seem like much until you are buying large lots for a production run.

I've just recently found that the little box caps don't sound as good in distortion effects as they do in clean or *Hi-Fi* applications. I bought a mess of them after trying them in assorted clean boosters, etc. I found, to my suprise, that I prefered the *lowly* greenie in a fuzz/distortion I've been working on. I would think the *plastic* box caps would be well suited to a delay build, with maybe a few strategically placed polyesters(input/output caps maybe). For myself, I would have enough to worry about just getting the PT-80 up and running, so I'd try not to worry about cap types too much.

Good luck and have fun!

Kerry M

[MartyMart]

thanks to yours answers..
ok so if you said that these plactic capacitor are good, I will use them.
but I don't like these box, it's a little "cold".

But why in the professional effect there are  polester film and not plastic capacitor??

You have to consider the cost per-part for one thing. The difference between $.05 and $.20 might not seem like much until you are buying large lots for a production run.

I've just recently found that the little box caps don't sound as good in distortion effects as they do in clean or *Hi-Fi* applications. I bought a mess of them after trying them in assorted clean boosters, etc. I found, to my suprise, that I prefered the *lowly* greenie in a fuzz/distortion I've been working on. I would think the *plastic* box caps would be well suited to a delay build, with maybe a few strategically placed polyesters(input/output caps maybe). For myself, I would have enough to worry about just getting the PT-80 up and running, so I'd try not to worry about cap types too much.

Good luck and have fun!

Kerry M

I use those MKT and MKK Polyester caps all the time, I have not found them to be "cheap" ( 30 pence - £1 ) they are the same quality as AVX caps!
They seem to be as good as Panasonic ECQ, but I guess "greenies" will also do a fine job within a guitar "stompbox" circuit ?

Marty.

[Peter Snowberg]

I've just recently found that the little box caps don't sound as good in distortion effects as they do in clean or *Hi-Fi* applications. I bought a mess of them after trying them in assorted clean boosters, etc. I found, to my suprise, that I prefered the *lowly* greenie in a fuzz/distortion I've been working on.

I've come to the same conclusion. I suspect it has to do with ESL because that's the largest difference in the construction. The "box" style caps that I've dissassembled are all built by taking the plates out to the leads in parallel so the inductance is *very* low. "Greenies" on the other hand are wound so they're more like a combination of a cap and a small inductor. I've noticed the largest difference in coupling positions. According to this line of thinking.... emitter bypass caps may be best as "box" styles while all the coupling is done with Xicon "greenies". Note that this is all for fuzz and distortion.... for a BBD based chorus I would suspect the more hi-fi result from box caps. For DSP hacking, I've been VERY happy with greenies.