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                           AeroElectric-List Digest Archive
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                     Total Messages Posted Sat 03/30/24: 2
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Today's Message Index:
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     1. 02:05 PM - Re: Re: Z18 LOM Installation Question  (Robert L. Nuckolls, III)
     2. 02:29 PM - Re: Re: Z18 LOM Installation Question  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 02:05:57 PM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Z18 LOM Installation Question

At 11:24 PM 3/29/2024, you wrote:
>At 11:34 AM 3/29/2024, you wrote:
>>
>>That MSD noise filter is almost certainly a Nippon ChemiCon U36D 
>>series capactor (like this one ( 
>>https://www.digikey.com/short/52pftq70)) with a red shrink-wrap 
>>over it and the price wildly inflated.
>>
>>Here's the mounting bracket ( https://www.digikey.com/short/b3mrf2h9).

   AHA! you weren't talking about an alternator filter . . .
   but an ignition module filter . . . I'll learn how
   to read one of these days!


   Bob . . .

                    ////
                   (o o)
    ===========o00o=(_)=o00o========
    < Go ahead, make my day . . .   >
    < show me where I'm wrong.      >
    ================================

    In the interest of creative evolution
    for the-best-we-know-how-to-do based
    on physics and repeatable experiment.

________________________________  Message 2  _____________________________________


Time: 02:29:13 PM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Z18 LOM Installation Question

At 11:24 PM 3/29/2024, you wrote:
>At 11:34 AM 3/29/2024, you wrote:
>>
>>That MSD noise filter is almost certainly a Nippon ChemiCon U36D 
>>series capactor (like this one ( 
>>https://www.digikey.com/short/52pftq70)) with a red shrink-wrap 
>>over it and the price wildly inflated.
>>
>>Here's the mounting bracket ( https://www.digikey.com/short/b3mrf2h9).

   Greetings from the right 'rabbit hole' . . .

   Okay, I peeked at the mounting bracket and the 36D
   series capacitors and ran down the wrong rabbit hole.

   I don't recall the source data for LOM magneto
   wiring . . . Z18 was crafted many moons ago! However,
   I'm pretty sure we're working with legacy magnetos.
   Therefore, those filters would be of the type
   recommended for magneto p-leads. These are generally
   a series inductor paired with a shunt capacitor.

   Try flying with no filters. These were generally
   needed only for low frequency AM radios. I'm
   presuming you won't have these installed!

   Wire the mag switches as shown . . . ground the
   switches through the p-lead shields with no
   other connections to ground at the switches.
   I think you have a good chance of experiencing
   no magneto interference.

   If you DO notice some on your VHF comm radios,
   we can craft some filters to try. They're
   not complicated. But to be sure, fat
   electrolytic capacitors are not part of
   the solution!


   Bob . . .

                    ////
                   (o o)
    ===========o00o=(_)=o00o========
    < Go ahead, make my day . . .   >
    < show me where I'm wrong.      >
    ================================

    In the interest of creative evolution
    for the-best-we-know-how-to-do based
    on physics and repeatable experiment.

 

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