Power Supply 9V AC/DC 1A Power Adapter (reverse polarity) | Reverb
N Plug Male to RP-TNC Jack Female Coaxial Adapter | AIR802
Amazon.com: SHNITPWR 5.5 x 2.1mm Jack Reverse Polarity Converter Cable for SHNITPWR 10W~72W Power Supply Adjustable Universal AC Adapters with 5.5x2.1/2.5 mm DC Tip Max. Support 3A 3000mA : Musical Instruments