[TechAssist] Re: Fingertip Voltmeter/ Easy Circuit links.

  • From: Tech-Rep <tech-rep@xxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 04 Feb 2002 17:00:53 -0600

Hey Guys,

I purchased a phone set (butt-set phone line  dialer/monitor) for $25 at a
pawnshop. I've had it for years and worked great. Save a life and
be a professional.
Try these link for home made circuits etc..

It's better just to carry Ring detection circuits ..
http://www.hut.fi/Misc/Electronics/circuits/ringer.gif
http://www.cpclare.com/home/PDFs.nsf/www/AN-142.pdf/$File/AN-142.pdf
the loop detect signal while ringing is detected
http://www.hotspot.freeserve.co.uk/HOTSPOT/TLS/tlsframe.htm
or page down 7 times here.
http://www.hut.fi/Misc/Electronics/circuits/telephone_ringer.html
Telephone Tone Generator Requires
http://dbserv.maxim-ic.com/appnotes.cfm?appnote_number=97
What is ring signal ?
http://www.hut.fi/Misc/Electronics/circuits/telephone_ringer.html

Living long by working wiser.
tech-rep@xxxxxxxxxx
-----Original Message-----
From: J Silverman <greentron@xxxxxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Monday, February 04, 2002 4:28 PM
Subject: [TechAssist] Re: Fingertip Voltmeter anyone???


>
>The ringing signal is 200 volts peak-to-peak at 20 Hertz.
>Jerry Silverman
>Greentron Inc
>4 Newland Ave
>Greenville SC 29609
>864 232 3889
>Fax 271 2080
>mailto:greentron@xxxxxxx
>----- Original Message -----
>From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Monday, February 04, 2002 4:13 PM
>Subject: [TechAssist] Re: Fingertip Voltmeter anyone???
>
>
>>
>> And hope the phone don't ring.
>> Jim Myers
>> jr.myers@xxxxxxxxxxx
>> ----- Original Message -----
>> From: "MCCET" <marcel@xxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Monday, February 04, 2002 4:14 PM
>> Subject: [TechAssist] Fingertip Voltmeter anyone???
>>
>>
>>
>> FYI
>> Found on the net.,
>>
>>
>>
>> Subject: a neat trick
>> Newsgroups: alt.
>> View this article only
>> Date: 2002-01-3
>>
>>
>> If you dont have any way to test if a phone line is live or what the
>> polarity is you can do this. Take the wires and strip them back about 1
>> inch, spit on your index finger and lay both the wires holding them about
>a
>> millimeter apart in the spit on your finger . If its live you will feel a
>> little shock. The Ring side of the wires will start to fizzle if you look
>> closely, identifying the polarity of the line in question.
>>  This was taught to me by a technician while he was installing my DSL
>> service this morning.
>>
>>
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>
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