Hi Lisa.
There are many urban legends of people who could 'fix' slot machines by
using 'Phreak', 'squawk' and 'Blaster' boxes. These were allegedly small
battery powered gadgets which produced very large amounts of EMI, sometimes
as simple as a small unsuppressed electromagnetic buzzer, sometimes
--- On Tue, 7 Jul 1998 17:00:24 EDT mikonc...@aol.com wrote:
> Lisa:
>
> Come to think of it, I have never seen a slot machine that wasn't encased in
> metal. Wonder if they use EMI gaskets?.
>
> Mike Conn
> Owner/Principal Consultant
> Mikon Consulting
Considering that the slots have su
Hi Darrell.
I've bounced your question to the group, mainly because it reminded me of
how EMC affects every bit of our lives, even our personal habits
No, I have to confess we just live with it now. We live with the
condition that if we get up in the middle of the night to use the bathroo
Mr. Fini:
At 06:27 PM 07/07/1998 +0200, you wrote:
>Florence (italy), 7 july '98
>
>Dear Sirs,
>do anyone know I can find informations/standards about CSA (canada)
>electrical safety requirements for equipments?
>
>Thank in advance.
Check at http://www.csa.ca
If you need more help, please feel
15 yrs ago, I tested some gaming equipment. There were some unique test specs,
including those to emulate catle prods. One of the specs was around 35kV with
some strange C and R value equivalents. They (gaming mfgs) are very aware of
the neccessity for "hard" equipment.
Hans
Heh, Heh
I guess its no coincidence that the EOS/ESD Association has had meetings and
symposia at both Vegas and Reno in the past few years.
A MiniZap will almost fit in your pocket--you just have to be careful where
you're pointing and avoid loose change when you hit the "trigger", but I
dig
Here is there web site address
http://www.csa.ca/solution_center/index.html
G. Labadie
Acromag
-Original Message-
From: Paolo [mailto:italp...@tin.it]
Sent: Tuesday, July 07, 1998 12:27 PM
To: emc-p...@ieee.org
Subject: CSA and standards for electrical eq.
Florence (italy), 7 july '9
Lisa:
Come to think of it, I have never seen a slot machine that wasn't encased in
metal. Wonder if they use EMI gaskets?.
Mike Conn
Owner/Principal Consultant
Mikon Consulting
You could begin by reviewing CSA's website www.csa.ca
You did not say what kind of equipments you had in mind. The
standards will depend on the nature of the product. If you mean
ITE products, the UL/CSA bi-national standards are almost
identical to IEC 950 or EN 60950.
Please respond to Paol
Since you brought it up, I am reminded of a time in my youth before the
"Hey Good Buddy..." craze hit the CB world. Back when it was a serious
citizens band, licenses were required and I was young and foolish.
I had a 5 channel 1 watt Johnson Messenger One CB. Had great fun 'til I
bought a one kW
Just curious, Anyone have insight on the immunity of Slot machines??
They must have some pretty rigid design criteria else we'd all be
rich. Haven't heard of any odd immunity things happening at Vegas --
Or do people choose not to say?
Lisa
Group,
What is your opinion / experience with Laboratory Test equipment
entering the Japanese market?
We certify our equipment to CE EN55011 & EN50082-1 for EMC and UL3101
& IEC 61010 for product safety.
Does this type of equipment require VCC
I read an article saying IEC61326 will become an EN standard for EMC for
Laboratory Equipment. What is the mandatory date for this to replace
En50081-1/EN55011 and EN50082-1 that we have been using?
Any other information related the 61326 would be helpful.
Thanks,
Tom Becker
Compliance Engineer
Hello Paolo,
You can find the CSA's web-link and hundreds more on the Safety Link at:
http://www.safetylink.com
Regards, Art Michael
* * * * * * * * * * * * * * * * * * * * * *
* International Product Safety News *
*Check out our cu
And, the Reliability Engineering issues are DESCRIBED on any web sites?
Thanks.
-
Original Text
From: "Tony Reynolds" , on 7/7/98 1:23 PM:
Does anyone know if there is a Reliability Engineering group similar
to this EMC/Safety group currently on the internet where engin
--- On Tue, 7 Jul 1998 09:24:45 -0400 geor...@lexmark.com wrote:
> Chris's list of rumored and witnessed interference problems points
> out several key points still true today. There are NO interference
> or immunity requirements for most of the world's electrical apparatus.
> I once heard the
Obviously it is not the logic circuits I am refering to! The front end of the
power supply has many types of scenarios that can cause high (>30 MHz)
frequency emissions. To name a few. Switcher pulse risetime and fall-off. As
semiconductors get better adn smaller, their ft also better (to other tha
Chris Kendall will be presenting the CORE EMC Design I and CORE EMC Design
II seminars:
Brea, California (Southern California) - July 13-15, 1998
Fremont, California (Northern California) - August 3-5, 1998
For more information, contact me directly or visit the CKC Web site.
Todd Robinson
Mark
H, could this be a universal EMC truth?
--- On Tue, 7 Jul 1998 01:52:56 -0400 Chris Dupres
wrote:
> Hi Keith.
>
> As we wander round this world of Electro-fizz, pop and 2dB-over-limit, we
> come across all sorts of strange EMC behaviour
> - The outside Quartz Halogen security li
Florence (italy), 7 july '98
Dear Sirs,
do anyone know I can find informations/standards about CSA (canada)
electrical safety requirements for equipments?
Thank in advance.
--
ing paolo fini
italponti telecomunicazioni
via Reims 12 50126 -Firen
Does anyone know if there is a Reliability Engineering group similar
to this EMC/Safety group currently on the internet where engineering
issues, ideas and experiances are discussed.
Thankyou for your time.
Tony Reynolds
Compliance Enginnering
Yes, Chris.
Quite amusing. Then, of course, there's
the famous "fly in the microwave" debate ...
Chris Dupres wrote:
>
> Hi Keith.
>
> As we wander round this world of Electro-fizz, pop and 2dB-over-limit, we
> come across all sorts of strange EMC behaviour, some directly witnessed,
>
In a message dated 98-07-07 02:31:48 EDT, treph...@macconnect.com writes:
<< Testing AC lines will prove whether your card can withstand whatever EFT
can pass through the power supply filtering, but just as important,EFT is
as much a radiated immunity test as it is a conducted test. Often I/O
In a message dated 98-07-06 20:40:33 EDT, rbus...@es.com writes:
<< A test house explained to me that the FCC allows either CISPR or FCC
limits/procedures providing that one can determine "worst case".
Consequently, you have to test both ways (120 V 60Hz or 230V 50Hz) to
determine which way you
Your comment below is absolutely true. Manufacturers spend far too much
time and money obtaining certifications for so many countries that have just
minor differences in their standards. One standard for EMC/product safety
is too simple I guess.
Darrell
--
From: owner-emc-p...@majordomo.
Typically, the range switch on the cost-sensitive (cheap) power supplies
changes the front-end topology from conventional capacitor input to a
voltage -doubled one. Since the power load stays the same, the current
will double. But the nature of the input current to these supplies is
gulps of cur
Thanks Chris!
I love the gas flame one! (pity its not EMC)
Expect to see these in print one day.
Keith
Chris Dupres wrote:
>
> Hi Keith.
>
> As we wander round this world of Electro-fizz, pop and 2dB-over-limit, we
> come across all sorts of strange EMC behaviour, some directly witnessed,
> some
Chris's list of rumored and witnessed intereference problems points
out several key points still true today. There are NO intereference
or immunity requirements for most of the world's electrical apparatus.
Perhaps the most famous case of intereference was when shipboard
electronics fired a rocke
I am attempting to keep up on the recycling and take back legislation by
subscribing to "Recycling Laws International" from Raymond Communications,
Inc. (301) 345-4237, www.raymond.com/recycle.
> --
> From: Tony Reynolds[SMTP:reyno...@pb.com]
> Reply To: Tony Reynolds
> Sent:
David-
See also the technical report (available from AVX) "Surge in Solid
Tantalum Capacitors" by John Gill of AVX. He discusses the surge
failure mode of tantalum caps in low Z circuits (e.g. DC power
supplies).
Charlie
Dear collegues
EMC Workshop held by Rohde & Schwarz will take place on 14.-15.07.1998.
in Split, Croatia, EMC lab of Marine Electronics Center. It is connected
with shipboard measurements of RF EM fields originating from shipboard
RF equipment.
Measurements are conducted by EMC project at FER (F
NARTE can be reached at (508) 533-8333. For anyone interested in this
certification, they will send an informative package detailing the
requirements for certification and a list of study guides. For those of us
who weren't smart enough to grandfather when that opportunity was given, the
exam is t
A fools paradise or not I don't know but to say that it is only secondary
circuits that radiates is not true. I have several switch mode power
supplies which have radiated emission up to 150MHz. Especially from 40 -
100MHz I often see problems. This emission is normally very sensitive to
Hi Keith.
As we wander round this world of Electro-fizz, pop and 2dB-over-limit, we
come across all sorts of strange EMC behaviour, some directly witnessed,
some without an actual source ("I heard of a friend of the wife of the chap
who reads the gas meters" - etc.)
A few more amusing ones have s
Jeff,
Testing AC lines will prove whether your card can withstand whatever EFT
can pass through the power supply filtering, but just as important,EFT is
as much a radiated immunity test as it is a conducted test. Often I/O
cables and others act as pickup antennas, and you should consider the
poss
On Mon, 6 Jul 1998 16:28:20 -0400 , you wrote:
>Perhaps the conflict of dates is in the source of the document. The IEC
>may say one date and the EU may adopt quite another. As an example: an
>EU parallel vote document is usually pretty much in sync with the IEC.
>IEC 60950 on the other hand was
good point, Gary. Only the front end of the switcher would see the
different input voltage and frequency. The high-speed oscillators on
the motherboards, etc., should not be affected by input
voltage/frequency, yes?
Dwight
Gary McInturff wrote:
>
> That's interesting. The change from 50 to 60
That's interesting. The change from 50 to 60 Hz would change some input
components and that could effect the input impedance and hence the
conducted emissions signature but the voltage, especially if its a well
regulated and filtered supply should be invisible. The components that
radiate at that p
I think that last sentence is the key. If you test at some power
frequency that is not the one that will be used in the field, then you
need a good story as to why you did this.
Jim
---
Dr. Jim Knight
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