         ____  ___ ______  __  ______        __   __    __   ___ 
        /   / /      /    /  >   /    /___/ /  > /__>  /__> /_
       <___/ <___   /    <__/   /    /   / <__/ /  \  /    <___

 	                  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.

--The Cruiser
   -3/15/87-
