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MUTE.TXT
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1998-07-21
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5KB
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102 lines
____ ___ ______ __ ______ __ __ __ ___
/ / / / / > / /___/ / > /__> /__> /_
<___/ <___ / <__/ / / / <__/ / \ / <___
P R O D U C T I O N S
Presents
__________________________________________________________________________
_____
Making a Global Hold/Mute Switch
__________________________________________________________________________
_____
First of all, I will tell you a little about what this unique device
can do. Say for instance you are making a confidential call, and someone
picks up another extension. Simply hit the switch and all the phones connected to
your same line will go dead. Hit the switch again and you are back to your
original conversation. As you can see, no more worrying about privacy. This can
also be used as mute, but it's more powerful as it affects all the phones on a
line. Do you sometimes want to take the phone off the hook, but you don't want
to be bothered with the ear-piercing noise that is generated by the telco when
the phone is off-hook, or you think that a phone lying off-hook is unsightly?
Then just flick the switch when the phone is in its normal position, and when
you are ready to recive calls you can flip it back. There are many other uses
for this device, and I'm sure that you can find many more to fit your
individual needs.
Parts/Equipment List
--------------- ----
Mini LED, size T-1, Radio Shack Cat. No. 276-026[Red], 276-037[Green]
Submini SPST toggle, Radio Shack Cat. No. 275-324
100 k resistor, Radio Shack Cat. No. 271-045
40 Assorted Solder Lugs, package, Radio Shack Cat. No. 64-3029
Some assorted scraps of wire
Power drill
Solder gun
Flatblade screwdriver
At current Radio Shack prices, this project should cost you $5.76 to build
two top-of-the line models! [tax not included]
Assembly
--------
Be sure to unplug the phone from the wall before going further! Take
the plastic lid off the phone by unscrewing the two screws on the bottom. Now
look at the cord that goes into the phone from the wall. You'll see four
wires, a red, green, black, and yellow. The only two we will be needing is the red
and green. Now unscrew the red and green wires from their bases. Touch the
red wire to one end of the resistor and the green wire to the other end. Now
plug the phone in and pick up the reciever. There should be no dial tone. If
you get a dial tone, go back and check your procedures. If you don't get one,
then continue. Next solder a lug to one end of the the resistor, and solder
another lug to an end of a 4" piece of wire. Now solder the free end of the
resistor to one pole of the switch. Next solder the correct end of the LED [check
the poles] to the switch, and the other end solder to the free end of wire.
Now screw one lug to the base of the green wire [make sure the wire is on it,
too] and screw the other lug to the other base and corresponding wire. Plug in
the phone, and pick up the reciever. You should get a dial tone, and by
flicking the switch to ON, the phone should go dead and the LED should go on. If
the LED doesn't go on, you've reversed the poles, so take it off and put it
back on the other way. After you get it to work, find a position on the base that
it can properly fit. Now drill a hole on the side of the plastic lid where it
can fit the LED, and another one next to it to fit the toggle switch.
Illus. 1 red/green base
_______
lug | base |
_ | in | _ resistor
w /---<_ (_)phone(_) _>------/\/\/\/\/\-----\
i | |_______|
|
r |
\
Illus. 2 ____ reciever e |
\
|
\--------------------------------(O)--------/ swi
\-> __ LED
tch
front __ / /\,
of --> / (__) |
phone / _/ |
(_/_____o=| <-- the "o" is the hole for the LED, the "=" is the
switch hole.
Insert the LED and switch through their corresponding holes, and place the
lid back on the phone. Plug in the phone, and voila! Your very own Global
Mute/Silence Switch.