Bastl Instruments POPCORN v1.1 Assembly Manual page 11

FUSES
Solder the ​ t wo ​ f uses right on the rectangular spot signed "PTC". These parts look quite similar to
capacitors so don't let it confuse you.
RESONATOR
Insert also the ​ r esonator (the orange component with 3 leads). This part is not polarized so you can
insert it in any direction.
11