Dual Channel Oscilloscope V-212 by Hitachi

Vintage estimated early 1980's a must for any electronics bench, TV repair or science that uses electrical components.

It is fully functional and can be attached to any electronics to show wave forms, frequency etc.

It is worn and not new, so it should be used in videos or films into the 90's. Although oscilloscopes were available in the 70's this one was manufactured later but could be used as not much changed with earlier models.

It really depends on how specific your time frame is and whether exact dates are critical to the story line. Regardless, it is a cool movie prop for the right scenario.