I was going through my vintage machines collection and happened to notice something
strange with a commodore plus/4 I have.
On the right side, there was an additional RCA connector that I had never seen before
this.
Opening it up, it appears to only have a wire jumpered from one of its connections to pin
6 on the serial port.
I can't imagine why someone would do this. Any ideas?
Pictures are here.
http://imgur.com/a/CFUPs
Kevin