[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Neon Sign Noise



Original poster: "brian by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ka1bbg1-at-mcttelecom-dot-com>

Hi, Im not  good phone geek but there are phones that are shielded for
communications work like dispatchers would use, maybe having shielded wire
for the phone in that area shielded,and last of all how bout getting a neon
sign guy to check over tube for corona or insulator leaks? cul brian
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, January 24, 2001 1:42 PM
Subject: Neon Sign Noise


> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Esondrmn-at-aol-dot-com>
>
> Well, I hope Terry will let this pass.  It is not exactly on topic, but
does
> involve neon sign transformers.  Please reply off line to me if you have
any
> ideas.
>
> I recently moved my business (Yamaha golf car dealership) into a new
> building.  It has really cool neon tubing that runs around the showroom
about
> 8 feet up off the floor.  It is broke up into about 4 sections that each
have
> a 12 kv 30 ma neon sign transformer installed in the ceiling for power.
This
> is the first time I have owned any neon sign transformers that are
actually
> doing what they are designed for.
>
> One section of the neon is right above the parts counter and the neon
causes
> a lot of 60 HZ buzzing in the telephone that is sitting on the counter.  I
> want to get rid of this annoying buzzing in the phone.  If I shut the neon
> off, it goes away.  The phone is a standard two line phone with an
intercom.
> I unplugged the ac power supply to the phone and the problem is still
there.
> I tried plugging in the phone line to a different jack located about 40
feet
> away.  When the phone is brought over to the counter which is about 4 to 5
> feet below the neon, the problem returns.  As you move the phone, the
buzzing
> intensifies as it gets closer to the neon and goes away when the phone is
> moved about 10 or 12 feet away on a straight line.  I tried using a 1.5"
> diameter ferrite core and looping the incoming phone line through it a few
> times and also tried it on the cord to the handset - neither did anything
to
> reduce the noise.
>
> Anyone have any ideas?
>
> Thanks, Ed Sonderman
> Esondrmn-at-aol-dot-com
>
>
>
>