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Re: 8 car C set

Subject: Re: 8 car C set
From: "Jonathan Boles" <mousewithglasses@hotmail.com>
Date: 28 Oct 1999 18:30:27 +1000
Newsgroups: aus.rail
References: <7uroht$grn$1@news1.mpx.com.au> <38179745.B2FCACA2@fastlink.com.au> <01bf20e1$109b3200$b90065cb@tom-boles> <8E6D9FBB3telstraNews@vic.news.telstra.net> <7v8r75$3al$1@metro.ucc.usyd.edu.au>

if the coils are vibrating, why does it sound as if the whine comes from
the roof?

>  At slow speeds the 'chopping' frequency is just above audable. The coils
on
> the motors vibrate at the chopping frequency.

Follow-Ups:
- Re: 8 car C set
  - From: Michael <mk@netstra.com.au>

References:
- 8 car C set
  - From: "Hubert" <hubert@imap4.com>
- Re: 8 car C set
  - From: Railway Rasputin <bob@fastlink.com.au>
- Re: 8 car C set
  - From: "Jonathan Boles" <mousewithglasses@hotmail.com>
- Re: 8 car C set
  - From: Michael <mk@netstra.com.au>
- Re: 8 car C set
  - From: matthew@mail.usyd.edu.au (Matthew Geier)

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