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### TELEPHONEY ----- The Lunch Box ...
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  # Written by:  Dr D-Code



   The  Lunch Box  is  a  very  simple
transmitter  which  can be  handy  for
all  sorts  of  things.   It is  quite
small  and  can easily  be  put  in  a
number of  places.   I  have  success-
fully used it  for tapping phones, get
inside  information,  black  mail  and
other such things.   The possibilities
are endless.  I will also  include the
plans  for  an equally  small receiver
or your  newly made toy.   Use  it for
just  about  anything.  You  can  also
make the  transmitter and receiver to-
gether in one  box  and  use  it as  a
walkie-talkie.

                         > Dr D-Code <

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What you will need >
-------------------'

1 - 9v battery w/clip
1 - 25-MFD, 15v electrolytic capacitor
2 - .0047-MFD capacitors
1 - .022-MFD capacitor
1 - 51-PF capacitor
1 - 365-PF variable capacitor
1 - transistor antenna coil
1 - 2N366 transistor
1 - 2N464 transistor
1 - 100K RESISTOR
1 - 5.6K RESISTOR
1 - 10K RESISTOR
1 - 2meg potentiometer w/spst switch
X - some good wire
X - solder and iron

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Schematics for the Lunch Box >
---------------{transmitter}-'

         !
          !
        51 PF
          !
       ---+----  ------------BASE   COLLECTOR
      !        )(               2N366       +----+------///----GND
    365 PF     ()              EMITTER           !
      !        )(                 !              !
      +--------  ---+----         !              !
      !             !    !        !              !
     GND            /  .022MFD    !              !
                 10K    !        !              !
                    /   GND       +------------------------EMITTER
                    !             !              !             2N464
                    /           .0047            !          BASE   COLLECTOR
              2MEG  ----+        !              !   +--------+      @!
                    /    !       GND             !   !                !
                        GND                      !   !                !
        +-------------+.0047+--------------------+   !                !
                                                     !   +--25MFD-----+
            -----------------------------------------+   !            !
h      MICROPHONE                                        +--///-----+
            ---------------------------------------------+   100K     !
                                                                      !
                  GND---->/<---------------------!+!+!+---------------+
                        SWITCH                  BATTERY
                    FROM 2MEG POT.


Notes about the schematic >
--------------------------'

1 - GND means GRouNd
2 - The GND near the switch + the GND
    by the 2MEG potentiometer should
    be connected.
3 - Where you see:  )(
                    ()
                    )( it is the
    transistor antenna coil w/15 turns
    of regular hook-up wire around it.
4 - The middle of the loop on the left
    side {left of '()'} you should run
    a  wire down to  the '+' which has
    nothing attached to it.  There is
    a .0047 capacitor on the correct
    peice of wire.
5 - For the  microphone use a magnetic
    earphone (1k to 2k).
6 - '!' is  the antenna.  Use about 8'
    of  wire to broadcast about  300'.
    You  can't   broadcast  over  300'
    without a license.  The longer the
    antenna   the  more  powerful  the
    signal will be.   For a  very long
    antenna use  the black wire on the
    phone line.

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Using the Lunch Box >
--------------------'

   This transmitter will send the sig-
nals over  the AM radio band.  You use
the variable capacitor to  adjust what
freq. you want to us.  Find a good un-
used  freq. down at  the lower end  of
the scale  and  you're  set.   Use the
2meg  pot.   to  adjust  again.   Just
screw  with  it  until  you  get  what
sounds good.   The switch  on the 2meg
is for  turning the  Lunch Box  on and
off.   When  everything  is  adjusted,
turn on  AM radio and tune it to where
you  think  the  signal  is.   Have  a
friend  say something  through the box
and  and  tune  into  it.   That's all
there is to it!

::::::::::::::::::::::::::::::::::::::

What you will need >
-------------------'

1 - 9v battery w/clip
1 - 25-MFD, 15v electrolytic capacitor
1 - 365-PF variable capacitor
1 - 51-PF capacitor
1 - 1N38B diode
1 - transistor antenna coil
1 - 2N366 transistor
1 - spst toggle switch
1 - 1k to 2k magnetic earphone

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Schematics for the Lunch Box >
------------------{receiver}-'

         !
          !
        51 PF
          !
     +----+----+
     !         !
     )       365 PF
     (----+    !
     )    !    !
     +---------+---GND
          !
          +---*>!----BASE  COLLECTOR-----
             DIODE      2N366           EARPHONE
                        EMITTER    +-----
                          !        !
                         GND       !
                                   -
                                   +
                                   - BATTERY
                                   +
           GND------>/<------------+
                  SWITCH

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