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NuTone Intercom Photo Gallery > NuTone 2400 Stereo Music Intercom System > Nutone 2402 tuner main capacitor grounds and capacitor positive connections

Nutone 2402 tuner main capacitor grounds and capacitor positive connections

The red arrows point to the ground (negative) connections.  Often these can capacitors have a common ground (negative) which is the can itself.  This has to be checked because thee are some types which have a positive can connection.

The blue arrows point to the positive terminals of the capacitors.