On our Movies and Shows page we have the 1984 movie Ghostbusters movie which has a Tektronix RM561A oscilloscope with a 3A74 and 3B3 plug-ins in the interior of  their Ecto-1 vehicle.

The BIGBADTOYSTORE [external site] is offering a 1/6 scale model of the Ecto-1 ambulance which has a model replica of the RM561A oscilloscope in the interior. This image from their website shows the oscilloscope in the interior.

Photo courtesy of the BIGBADTOYSTORE

They also have a 1/6 replica of the Ecto-1 from the 2021 movie Ghostbusters: Afterlife.

Photo courtesy of the BIGBADTOYSTORE

The model is featured in this Adam Savage Unboxes The Ghostbusters Ecto-1 1/6 Scale Vehicle! movie.

This scene from this movie shows that the RM561A even lights up!