Parallax power supply noise model 555
The Parallax power supply converter has worked flawlessly for the last 7 seven years. Now when a light 12volt is on, you can hear a high pitch noise come out of it. Looked at some other sites said...
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My Parallax fan always made a lot noise but it wasn't high pitched. When mine failed it was the round toroidal core transformer that had a melt down. Every now and then we'd get a whiff of a burnt smell that would go away quickly.
I replaced mine with Progressive Dynamics PD9260 with the charge wizard. It was a easy switch. The Parallax didn't seem to have good reviews when I checked. The PD9260 had good reviews and with some shopping it was about a 175 shipping and all. I've been using for 2 yrs and it has done a fantastic job. Does a great job. Batteries use less water than any converter I've had.
I replaced mine with Progressive Dynamics PD9260 with the charge wizard. It was a easy switch. The Parallax didn't seem to have good reviews when I checked. The PD9260 had good reviews and with some shopping it was about a 175 shipping and all. I've been using for 2 yrs and it has done a fantastic job. Does a great job. Batteries use less water than any converter I've had.
