Investigation of the internal circuitry of the device suggests that this RCA jack is used to record sounds into the device for use in music composition.
The system has a range of about 150 feet and connects to a stereo via standard RCA jacks or 3.5-millimeter headphone cable.
In home applications, the composite video signal is typically connected using an RCA jack (phono plug), normally yellow.
I ran an RCA jack across the room to my television and watched them at maximum zoom, in living color, on my twenty-five-inch screen.
Osborne 1 systems with the 80-column upgrade have an RCA jack installed on the front panel to allow users to connect an external composite video monitor.
The inputs use RCA jacks.
The RCA jack, also known as a "phono jack", common to consumer electronics.
A composite-video input on a VCR is normally a yellow RCA jack.
Although the jack looks like a standard RCA jack, you should use a cable that is designed to carry a digital signal.
The unit, which comes with a remote control, has a cable with a yellow RCA jack.