OPC-599 7+8 to 13 pin Cable Adaptor. Connect your Icom 706 series to an amplifier or other devices. $23.00 shipped/insured Conus. Icom Amplifier Interface. Protect your Icom transceiver 746, 756, 775. Use on 706 series transceivers with above Adaptor 2 amp @ 24Vdc...1 Amp @ 100 Vac. $22.50 shipped/insured Conus. Van, K0KAV