I am told the EKL Component will pretty much work on any of these radios. Probably more to come.

Cobra 29
Cobra 148 (Early Model)
Cobra 148 (New Model)
EPT3600xxx Chassis Radios
Galaxy DX929 MOSFET Final Version
Galaxy DX939, DX949, DX959 and Ranger 396, 696, 966
Magnum S-3, Magnum S-6, and Magnum S-9 10 Meter Amateur Transceivers with Main Printed Circuit Board Numbers* 9821R17 through 9821R21
RCI 2950DX