Radio humming
We're living in a 28' 1978 Prowler. A very basic trailer, by today's standards. Anyway, it has an AM/FM/8-track player. Its an aftermarket thing that I can only guess was installed in the late 70s....
Forum Discussion
Dr Quick wrote:
I had an older trailer with the same problem when I installed a radio. I changed the radio connection from the converter side of the circuit to the battery side, and hum went away. Figured that any power that the radio used from the battery would be replenished by the converter. Never had any more hum problem.
There are converters, converters and converters.
A 1978 Converter.. I actually had one of these, made by of all folks Progressive Industries had a front panel with a 120 volt outlet, a push to reset breaker and a 3 position toggle labeled Battery/off/And frankly I forget.. This was nothing more than a transformer and a full wave bridge rectifier.. Unflitered DC out, good for lights and not much else.
A very slightly newer one would be the Magnetek 6300 series, this was roughly the same though it had two "Sides" on the 12 volt panel, one was connected to the battery so the battery provided filtering.
What I have today is a Progressive Dynamics 9180 with wizard (Equal to a 9280 with dongle) this is a bit ,,,er,,, much for your trailer but a 9245 or even a 9230 (I think that is the smallest) would be excellent.. This one has very good filtering, IN fact if I accidentally disconnect my batteries when plugged in none of my radios will ever notice except for the ones that are connected DIRECTLY to the battery (They quit when the batteries run down).
Plus the converter babies my batteries which lasted nine years.
