This is one of those times where I realize I still have a lot to learn. I'm sorting through some caps and realized I have what look to be red metallized polyester capacitors as well as mylar greenies. I'm a bit confused why the red ones would be so much smaller than the green ones at the same voltage (100v). Below is a pic of a 220nf greenie, 390nf red, 470nf greenie, and a 680nf red. As far as I know, these are both very similar types of poly caps - why are the red ones so much smaller?
Also- I'm not certain exactly what time of capacitors these are (below). Can't definitively say if the blue ones are ceramic, mlcc, or polyester - I figured the slightly taller one is ceramic and the shorter one is an mlcc...? No clue about the orange one!
![IMG_2373.jpg IMG_2373.jpg](https://forum.pedalpcb.com/data/attachments/80/80832-4f3408d8bf922a5499760dcc5d7a4f90.jpg)
Also- I'm not certain exactly what time of capacitors these are (below). Can't definitively say if the blue ones are ceramic, mlcc, or polyester - I figured the slightly taller one is ceramic and the shorter one is an mlcc...? No clue about the orange one!
![IMG_2374.jpg IMG_2374.jpg](https://forum.pedalpcb.com/data/attachments/80/80833-8ce46c0f8ae5eba9ea2048322403c2a8.jpg)
![IMG_2375.jpg IMG_2375.jpg](https://forum.pedalpcb.com/data/attachments/80/80834-dea77e8cdcc34e8e905e9b1388c3ed90.jpg)
![IMG_2376.jpg IMG_2376.jpg](https://forum.pedalpcb.com/data/attachments/80/80835-2fe29fa51020cb58b131dbf70f06a14b.jpg)