I have an extra ALS-600 power supply at our club here near Tampa , Florida. ( SCCARC ) I thought the PS on our Amp was bad and picked up one from an estate sale, and it worked fine but the amp actually had a different problem so I sent it out for repair and now I have two good power supplies and only need one. I would rather have a pickup than try to ship it but contact me if you want to discuss. I will have to check if its the switcher I cant remember right now. FOr more info contact me directly at KE4ZIP at GMAIL.COM I contacted KM4JSQ directly via text he is close by !