Caps for threshold sl-10

I am planning to change caps on my threshold sl-10.
How do you determine polarity of "Instrument Devices" caps? There is no polarity sign.

drdelta10-14-2013 5:40am

pbnaudio Details Discussions Posts This discussion Message User 1,617 posts 10-14-2013 at 02:53pm Copy Comment URL Report Comment Edit Delete If they are of the film type they are not polarized. Your question suggests that you are not that experienced with this, have you considered having a local electronics repair shop do this for you ? It may cost a few bucks more but could save you a bunch if you don't get it right. Best of luck Peter