Who are the electronics experts?
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  1. #1
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    Who are the electronics experts?

    I have an Oregon Scientific WR 102 handheld weather radio that I would like to take with me in the truck, but I don't want the hassle of batteries.

    Will the 12V car system fry the electronics? (7.5V) is the recommended AC/DC voltage.

    TIA



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    Re: Who are the electronics experts?

    Get something like this:
    12 volt to 1.5, 3, 4.5, 6, 7.5, 9 volt switching DC/DC converters with 2 amp output.

    I'm sure if you go down to your local radioshack they may have something a little more compact. 7.5V is pretty common so you should be able to find something. I think the really old discmans ran off of 7.5V so you may be able to find a DC adapter from those.



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    Re: Who are the electronics experts?

    Thanks Clonehomer, I'll check Radio Shack.

    This forum is GREAT!!!! I post a query and in 5 minutes I have an answer.



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    Re: Who are the electronics experts?

    radioshack probably has everything you need. Keep in mind that most of those "plug" type adaptors have different sized plugs. Most of the variable voltage adaptors come with a "plug kit" as well.

    Also, make note of the polarity. There should be a "diagram" near where you found the recommended voltage, indicating if the tip is negative or positive. Usually the "plug kits" will change the tip one way or the other depending on which way you plug them in.

    RadioShack.com - Power & Batteries: Car power: DC (12V/Car) adapters: Universal Vehicle DC-to-DC Adapter looks like it would work for you, but it's kinda spendy.


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    Re: Who are the electronics experts?

    I'd be cautious about getting a DC-DC converter. These devices often are not very efficient and may run your vehicle battery down if left connected when your ignition is off.

    I guess you could wire it to switch off with your ignition, but then you will need to reset the WR102 clock and any other settings that are remembered by the device.

    Or you could upgrade to a model with a charging stand and get a 12V - 115 VAC adapter which you can use to recharge whenever needed. Of course you could use this adapter for many other 115 VAC devices. But again, you can't leave it plugged in very long when the vehicle is not running or it will drain your battery.



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    Re: Who are the electronics experts?

    Psyclone's comments got me thinking again...isn't there a place on the AM radio band that broadcast NOAA weather radio?

    Just a thought....



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    Re: Who are the electronics experts?

    Quote Originally Posted by hoopsnut1 View Post
    Psyclone's comments got me thinking again...isn't there a place on the AM radio band that broadcast NOAA weather radio?

    Just a thought....
    There is the "Weather Band". It's in the VHF frequencies, around 162 Mhz. Most AM radios receive from 520khz up to around 161Mhz, and can't receive the WB broadcasts, at least without modification.

    NOAA Weather Radio

    My car has a "WB" button that finds the closest NWR station, and I love it.


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    Re: Who are the electronics experts?

    Quote Originally Posted by jumbopackage View Post
    There is the "Weather Band". It's in the VHF frequencies, around 162 Mhz. Most AM radios receive from 520khz up to around 161Mhz, and can't receive the WB broadcasts, at least without modification.
    I think that is 1610 kHz, or 1.61 MHz...


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    Re: Who are the electronics experts?

    Quote Originally Posted by jbhtexas View Post
    I think that is 1610 kHz, or 1.61 MHz...
    Got my hz messed up :(
    But you get my drift :D


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