These caps were filled with paper in a special oil inside of bakelite bodies with the original nema color codes printed on them this is how many resistors are still printed.
Ceramic vs paper in oil caps.
Did i just buy some magic beans or the brooklyn bridge.
The cheap ceramic caps are a little different story.
Truth be told i don t like one more than the other because i can t tell a difference.
The bumble bee caps were later replaced by the black beauties which contained a winding of aluminum foil and paper film along with oil and were printed with the specs.
I m not saying i like the orange drop better than the pio.
I bought a bunch of vintage paper in oil caps.
Paper in oil or pio caps are just one variety of capacitor.
Capacitors are energy storage devices that filter the high frequencies.
But for that moron to steal my cap and replace it and for me to never notice must mean that the difference is negligible at best.
Others are made out of mylar ceramic etc.
Pio caps were used in the les pauls of the 50 s and many appreciate their tonal qualities over more modern capacitors.