Radio shack should sell a big round inline radio filter which attaches
to the powered lead for a car radio. They used to sell them at least
- they work quite well.
If all else fails run it off a spare motorcycle battery, if you have
one, or a small 12V UPS battery which you can usually buy at a decent
computer supply store.
On 9/8/08, Michael Salter <msalter@precisionsportscar.com> wrote:
> I'm trying to get AHX12 ready and need to resolve a problem with the
> intercom.
> I'm getting a clicking noise through the intercom when the engine is
> running. This is caused by some "noise" on the 12 VDC power supply line
> which comes from the car's electrical system. I know this because when I run
> the intercom from a separate battery there is no noise with the car running.
> I have been unable to find the source of the "noise" so I want to put a
> filter of some sort on the power supply line to the intercom.
> I've tried those cylindrical magnet things but they didn't work.
> Is there a simple in line filter that I can readily source (I leave on
> Wednesday) that I can run the power through to get the "noise" out.
>
> Michael Salter
> 100 (1953) #174
> AHX12 (1953)
> Bugeye (1961)
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--
Sent from my mobile device
Alan
'52 A90
'53 BN1
'64 BJ8
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