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AMPHF - keying module two amps /replacesARB704 $80.00 plus shipping Paypal Zelle will key older high voltage/modern low voltage amplifiers this is a low input ptt one transceiver to two amplifiers will key two modern or older amps no cable swamping. safe full isolation PTT optocoupler 100% electrical isolation from your modern radio. 12vdc operation has standby switch. comes with power pigtail. will work great in line with your Ameritron ARB704 RCA jumper from ARB704 to the RK102 now you equipment is safe and isolated. you can mix and mach old and new amplifies Listing #1758093 by KJ6VRC Submitted on 02/06/26 Web Site: https://www.qrz.com/db/KJ6VRC Submitted from customer.snjecax1.isp.starlink.com Click to Contact Back to Previous Page

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