โJul-12-2017 01:56 PM
โJul-23-2017 07:16 AM
โJul-22-2017 06:07 AM
โJul-17-2017 06:30 PM
raden13 wrote:WA4HTZ wrote:
Westend said the Magnetek was a linear power supply with no filtering. They rely on having a good battery connected to filter out the 120 Hz. ripple on the DC voltage. If the battery is dead as Hornnumb said (and I mean VERY dead), it will not act as a filter and you get the buzzing in the stereo. Also if the battery is disconnected, either with a battery disconnect switch or a bad connection to the battery, you will get the same problem. A big clue was you said a light got brighter when you hooked up the stereo. Most of the auto stereos usually have a capacitor or two on the incoming 12v line to eliminate some of the garbage which can ride on a 12v automotive electrical system. I suspect the stereo was acting as a slight filter and raised the average voltage a bit which made the light get brighter. I would check the connections to the battery and make sure the battery switch, if you have one, is on. If everything is good with the connections, check the voltage on the battery with it disconnected. If it's really low (like 4 or 5 volts instead of 12 low), try to charge it with a modern battery charge if you have one and see what happens.
I hope this loooong explanation has help you a bit. In the end though, as others have said, you will be better off replacing the Magnetek electronics. The kit you linked to from Bestconverter looks like it would be an excellent replacement. Get the PD 4655 with the kit if you can.
Good luck and happy camping.
Ken
Ken, thanks so much for the detailed info! One stupid question. You mentioned I should get the 4655, which is the 55 Amp model. The sticker next to my electrical plug on the outside of my trailer mentions using a 120V - 35 Amp connection. Is it ok for me to replace my converter with the 4655 model, or do I need to get the 35 Amp model (4635)? You mentioned I should get the 4655, which is the 55 Amp model. The sticker next to my electrical plug on the outside of my trailer mentions using a 120V - 35 Amp connection. Is it ok for me to replace my converter with the 4655 model, or do I need to get the 35 Amp model (4635)?
Also wanted to mention, I do not have a switch for the 12V batteries. Thanks to everyone else for the input as well.
โJul-17-2017 11:25 AM
Hornnumb2 wrote:
Was the 12v battery dead? sometimes you will get some humming when it is trying to charge a dead battery up.
โJul-17-2017 11:24 AM
WA4HTZ wrote:
Westend said the Magnetek was a linear power supply with no filtering. They rely on having a good battery connected to filter out the 120 Hz. ripple on the DC voltage. If the battery is dead as Hornnumb said (and I mean VERY dead), it will not act as a filter and you get the buzzing in the stereo. Also if the battery is disconnected, either with a battery disconnect switch or a bad connection to the battery, you will get the same problem. A big clue was you said a light got brighter when you hooked up the stereo. Most of the auto stereos usually have a capacitor or two on the incoming 12v line to eliminate some of the garbage which can ride on a 12v automotive electrical system. I suspect the stereo was acting as a slight filter and raised the average voltage a bit which made the light get brighter. I would check the connections to the battery and make sure the battery switch, if you have one, is on. If everything is good with the connections, check the voltage on the battery with it disconnected. If it's really low (like 4 or 5 volts instead of 12 low), try to charge it with a modern battery charge if you have one and see what happens.
I hope this loooong explanation has help you a bit. In the end though, as others have said, you will be better off replacing the Magnetek electronics. The kit you linked to from Bestconverter looks like it would be an excellent replacement. Get the PD 4655 with the kit if you can.
Good luck and happy camping.
Ken
โJul-14-2017 08:54 AM
westend wrote:raden13 wrote:Yes. Sizing will be on number of batteries to be charged and what amount of time you wish that to happen.
Did some searching and I'm assuming one of these is what I need, correct?
http://www.bestconverter.com/MagnetekParallax-630073008300-Upgrade-Kits_c_64.html
FWIW, my PD converter is 46 years old and functioning well. I can't give any better endorsement than that.
โJul-14-2017 08:44 AM
raden13 wrote:Yes. Sizing will be on number of batteries to be charged and what amount of time you wish that to happen.
Did some searching and I'm assuming one of these is what I need, correct?
http://www.bestconverter.com/MagnetekParallax-630073008300-Upgrade-Kits_c_64.html
โJul-13-2017 01:23 PM
โJul-13-2017 09:25 AM
โJul-13-2017 07:18 AM
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โJul-12-2017 10:41 PM
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โJul-12-2017 09:10 PM