Could someone please tell me what model radios the Futaba Tacho-Sensor will work with? I was once told it would work with a 7U Super. Well I just obtained one with a plane I bought and do not see any connection for it.

The Futaba Tacho-Sensor was used with the old PCM512 8-channel transmitters, the 8SGAP, 8SGHP, 8SSAP, and 8SSHP. It is not compatible with the 7U-series, 8U-series, 9C-series, 9V-series, 9Z-series, or the 12FG, 12 Z and 14MZ.