----- Original Message ----- From: "Sandy" <ebjr37 at charter.net> Subject: Re: [ARC5] AVT-112 parts unit > I did one mod with mine that was simple and allowed use on 75 > and 40 meters simply by taking off a few turns of the PA tank. My complete system, including even the RCA headphones and RCA microphone, works well on 3890 and 7160 without any mods.