It is a Sony Handycam from around 1990. It is a camera/recorder using Video 8 tapes. At the time a revolutionary device because of its palm sized dimensions and good picture quality.
The Handycam delivers a composite video signal (yellow cinch plug) which I can feed directly into the ATV transmitter (with the ALPS VCO)
Sony still uses the brandname "Handycam" for its current digital cameras:
All about the Sony Handycam:
Recording made with Handycam transmitted on 1.2 GHz