home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Chaos Computer Club 1997 February
/
cccd_beta_feb_97.iso
/
chaos
/
habi1
/
txt
/
hb1_224.txt
< prev
next >
Wrap
Text File
|
1997-02-28
|
5KB
|
139 lines
BUilD A [~NE RElAY
R. -- _
TO R5Ö ^~D GRE5N
PHONE LINE WIRES
Srn~.
1
CA QAC ITOR
The Line Relay is a s~mple yet interesting device you
can put on your phone line. It will do almost anything
you want when your phone rings, such as t=-n on a
light, answer the phone, turn off your stereo~etc.
We will show some extension projects in future isoues.
The phone ringlog is 90 volts AC, often superimpos-
ed on 45 ~rolts DC. This 90 volts will operate a 115 V
AC relay, which can in turn supply power from the
power lines to any ordinary appliance. The relay is
commonly available. However, a capacitor is needed
to D~ isolate the relay coil from phone line. Without
DEAR YIPL
On the new type pay phones (single slot) you can
make a local 10 cent =11 for a nickell Just when it's
about to hit the triggering mechanism bang on the
dial then bang it a few more times chan tap the
reciever button till you get your dial tone. When you
hear the dial tone the rli~ will not react to it so dial
by hitting the reciever button. For example, if the
number is 648-6003 tap the button 6 t~mes-4 times-8
tirnes and so on waiting a few seconds between each
number. You c~n also get the number by tapping it
10 times for Operator, in some areas you can get the
Operator by tspping out 211.
-P. R. BROOKLYN-
DEAR Y1PL
The call hack no. in Chicago is 571-6, its the only
Imown no. in existence. Also some new loop nos.
work on the superNrised-unsuper~nsed me thod. Ihe
last four digits are 9973-74. Any ex-. ~tween
271 and 973 are effecLiYe. For those tbat care, here
are some switchman nos. (all of this is Chi- town)
EM- 9952, LA 5-9952. J~st screw ar~nnd wich the
exchanges and use 9952, and your bound to come up
with a swiLchman somewhere in this city.
Also for those who might like to know,a majority of
t~e system here works on cross 1 paneling. I'm sorr~;
at the passing of the ~rty in N. Y., back in January.
I know, I hung ~n the night ihey fuckec around w~th the
volume. But no need to worry, I'm ~ the process of
establishi~g a party line in Chicago!
-B from CXECA&O~
Also: the telephone co. news wire ser~ce no. printe~
in issue no. 16 is not free. Here's ore in Chicago
though that is.(312) 368-8000. Listea in on the Bullst
COIL
o
c
A -~-
cON,ACTs r
~.C. I
~_
h.0.
RELAY
TO WALl
~ft SOCKE-
, .
B ~
it Ihe relay will dra~v a dial tone even with the phone
on-hook. The capacitor should be noc-electrolytic,
and as many microfarads as possibLe; 5 should do
nicely.
The contacts of the relay can operate any circuit
you want. The diagram shows how the normally-
open and the normally~closed coulacts cen be used
to light Lamp B and extinguish~a good word to know)
Lamp A when the phone rings. In order to prevent
the relay from "chattering" (vibraüng rapidly up &
down) you can loosen the relay spring slight~y or
lncrease tte stze of the capacitor.
The infLationary spiral is ~cing its toll around lhe
world today, especially in the U. S. We blame greedy
corporations, the prime exa~nple being AT&T.
With aJ1 the profits thev are making, why are ceoole
borrowing more and saving less? Because, friends, our
public utility, the phone company, does not use the profits
to improve phone service. As you can see by the chart,
~lore than 45lc of your #14 brass washer pays for profit
and expenses wEich are unnecessary in a tme public
service giving ~ee local service to e`7eryonetmarketing,
~art of accounting, interest, and regressive t~tion).
In a socialist economy, the phone company wouldn't have
to advertise(marketing expenses). It doesn't have to now I
There's no competitionl As fAr as taxation goes, a poor
person pays ~e same amount of tax on a monthly hasic
charge as someone better off, even ~ough the tax goes
straight to the governwent(and to the mi3;~ry waste).
And local telephone serv~ce costs the phone company tba~t
same 45~! Which means tbat a socialist economy would
provide service improvements like ~is in the o~er so-
called public utilities in this country.
'.53
~r ~ERE >~ov a
5LUG GOES.