Good morning, I'm wrestling to drive the Theta Dreadnought via the AV192R switches (I'm using the A switch). The Theta needs a 5 to 12 V DC pulse in order to switch its state. Should I insert a battery or something in series with the AV192R switch or are the switches providing a kind of DC voltage? If the AV192R is providing a DV voltage, which is the value of such a voltage? Have some of you any experience on that matter? My dream is to make the Theta to switch on as soon I switch on the AV192R (Graham I know you are going to say that I should have bought a Tag power amplifier... but the 250s are too expensive to me ) Thank you in advance of your suggestions. Regards, Leo.