Be heard! Work DX and ragchew with anyone. Just turn on, select band on your transceiver and operate. No tubes, no warming up, no tuning, ever. Select transceiver interface cable, www.
Buy with confidence and be assured of getting a good working HENRY amplifier checked out and serviced by the factory that made it! Ground on "input" will provide closure on "output" connector. RCA jacks in and out, 3 feet of wire for 12 vdc total draw from your VDC power supply is only 40 ma!