I am a long time Drake enthusiast . Some years ago i came up with a cable to connect the AC4 power supply relay contact to any AMP using a 2 pin connector i designed Click image for larger version.  Name: DSC03001.JPG  Views: 8  Size: 652.3 KB  ID: 89360and an rca connector. Those 2 pin connectors were either lost or broken. I also realised the inter connecting cables for the PTO and injection circuits were also in short supply due to most sets of twins being sold seperately. I have sold well over a 1000 sets of inter connecting and relay cables. Feel free to contact me at K9VT@aol.com for your Drake cable needs.. 73 Ken K9VTClick image for larger version.  Name: DSC01721.JPG  Views: 9  Size: 71.3 KB  ID: 89359