On Tuesday (07/28/2015 at 11:22AM -0400), Douglas Taylor wrote: > I ran into this looking for something else on ebay: > > Digital Constant Voltage Conditioner H7225 item 331591861028 > > I don't think I ever saw one of these before, were they of any use?
I have one. Heavy beast. It is a ferro-resonant transformer that is roughly equivalent to what folks may know as a "Sola" (now owned by Emerson) or other sort of line voltage stabilizer. Mine is model 7225-AA and is only rated at 4A @ 120VAC and for the weight, seems like I'm getting jipped. I don't know what DEC's intended use was for them but I have used mine at ham radio antenna range testing and other outdoor venues where the AC power comes from a generator or over a very long extension cord and have powered small amounts of test equipment or radio gear from it. It takes a wider range AC input and "regulates" it to 120V, with some amount of filtering and transient supression behavior. -- Chris Elmquist
