[sdiy] (OT) buzzing in my car cig-lighter...

[Happy Harry]

Is the cassette totally isolated from the vehicle ground except for
the power connection.

I'd use two chokes... one in the ground and one in the 12V DC line.

Make or buy... a couple of big iron bolts with as many turns of wire on them 
as you can get easily.. (50-100?)... and then put a big capactitor on the 
tape deck side ot that.

They also sell power filters for cars...

BTW if anyone has a Vixen 21 Motor Home... thats how the filters on
the refrigerator were done. you poor bastards....

H^) harry


>From: "Reverend djbluE (Chromatest)" <djblue at graffiti.net>
>Reply-To: djblue at graffiti.net
>To: Synth DIY <synth-diy at node12b53.a2000.nl>
>Subject: [sdiy] (OT) buzzing in my car cig-lighter...
>Date: Wed, 25 Apr 2001 01:24:38 -0400
>
>
>hi all, I've been using my portable CD player in my car to listen to
>tunes lately.. I have a crappy aiwa casette deck (never buy *anything*
>aiwa!!!) in my car, and something in the casette part died recently..
>luckily (the reason I bought the deck) is that it has a mini-stereo
>jack on the front panel to plug in other things (CD, MD, DAT, etc)...
>so I've been using my CD player here... but....
>
>I also use a cigarette lighter power adaptor to power the CD player,
>unfortunately, this introduces a buzz (ignition noise prolly).  when
>powered by batteries it is gone, but as soon as I use the adaptor it's
>there... so.. I don't actually have a cig lighter though, never had
>one, don't smoke, etc... is there a way to put a filter on the lighter
>jack?  a couple caps and resistor to smooth the line or something?
>
>I don't know if it matters, but the line is independant from the
>ignition.. it's live even if the key is off.
>
>thanks all
>
>-ben

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