[ARC5] Dynamotor Capacitor

[Fuqua, Bill L]

  One thing that I have not seen addressed.
That under real conditions it is not a matter of one dynamotor and radio being 
connected to a battery, but a number of loads connected to a battery and with
various impedances, perhaps their own brushes and dynamotors, etc.
  The battery at high frequencies, those produced by the sparking brushes, is 
practically an open circuit. The paths that these high frequency currents travel are
not just between the battery and dynamotor, but between the dyanmotor, the generator,
the other wires going to perhaps instruments in the cockpit. Lots of inductances, various
impedances, inadvertent antennas etc. 
  73
Bill wa4lav

   
________________________________________
From: arc5-bounces at mailman.qth.net [arc5-bounces at mailman.qth.net] on behalf of Fuqua, Bill L [wlfuqu00 at uky.edu]
Sent: Tuesday, March 25, 2014 12:25 PM
To: kgordon2006 at frontier.com; Mike Feher
Cc: ARC5 at mailman.QTH.net
Subject: Re: [ARC5] Dynamotor Capacitor

  I would like to say one thing. A battery is not an effective short for high frequency currents.
As far as  the sparks are concerned the acid lead battery just does not offer any bypassing
capability. It uses a slow chemical process to produce energy when discharging and absorb energy when charging.
73
Bill wa4lav
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