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  1.  
  2.                                 ==Phrack Inc.==
  3.  
  4.                      Volume Three, Issue 28, File #5 of 12
  5.  
  6.                   /////////////////////\\\\\\\\\\\\\\\\\\\\\
  7.                  ||                                        ||
  8.                  || A Real Functioning PEARL BOX Schematic ||
  9.                  ||                                        ||
  10.                  ||        Written, Tested, and Used       ||
  11.                  ||                                        ||
  12.                  ||               by Dispater              ||
  13.                  ||                                        ||
  14.                  ||              July 1, 1989              ||
  15.                  ||                                        ||
  16.                   \\\\\\\\\\\\\\\\\\\\\/////////////////////
  17.  
  18.  
  19. Introduction:  After reading the earlier renditions of schematics for the Pearl
  20.                Box, I decided that there was an easier and cheaper way of doing
  21.                the same thing with an IC and parts you probably have just
  22.                laying around the house.
  23.  
  24.  
  25. What Is A Pearl Box and Why Do I Want One?
  26.  
  27.      A Pearl Box is a tone generating device that is used to make a wide range
  28.      of single tones.  Therefore, it would be very easy to modify this basic
  29.      design to make a Blue Box by making 2 Pearl Boxes and joining them
  30.      together in some fashion.
  31.  
  32.      A Pearl Box can be used to create any tone you wish that other boxes may
  33.      not.  It also has a tone sweep option that can be used for numerous things
  34.      like detecting different types of phone tapping devices.
  35.  
  36.  
  37. Parts List:
  38.  
  39.         CD4049 RCA integrated circuit
  40.         .1 uF disk capacitor
  41.         1 uF 16V electrolitic capacitor
  42.         1K resistor
  43.         10M resistor
  44.         1meg pot
  45.         1N914 diode
  46.         Some SPST momentary push-button switches
  47.         1 SPDT toggle switch
  48.         9 Volt battery & clip
  49.         and miscellaneous stuff you should have laying around the house.
  50.  
  51.  
  52. State-of-the-Art-Text Schematic:
  53.                                        +  16V  1uF -
  54.               _______________________________||_____
  55.              |        !     !                ||     |           _
  56.              |   _______________________            |__________| |/| 8ohms
  57.          ____|__|_____:__|__:__|_       |            __________| | |
  58.         | 9 10 11 12 13 14 15 16 |      |           |          |_|\|
  59.         |        CD4049UBE       |      |           |
  60.         |_1__2__3__4__5__6__7__8_|      :           |          _
  61.           |  |  |__|  |__|  |  |____________________|_________[-]
  62.           |  |  !           !           :                     [b]
  63.           |  |__________________________|                     [a]
  64.           |     :           :           |                     [t]
  65.           |     !    1N914  !           !                     [t]
  66.           |___________|/|_____________________________________[+]
  67.                 :     |\|   :           :
  68.                 |           |           |
  69.                 |    10M    |           |
  70.                 |___/\/\/\__|           |
  71.                 |           |           |
  72.                 |_____||____|           |  <-- These 2 wires to the center pole
  73.                       ||    |           |      of switch.
  74.                  .1uF   50V |           |
  75.                             |           |
  76.      _______________________|           |_____________________________
  77.     |                   ___[Toggle Switch]____________                |
  78.     |                  |                              |          ___  |
  79.     |                  |                              |          o o  |
  80.     |                  |                              | /\/\/\___| |__|
  81.     |_/\/\/\____/\/\/\ |                              |    ^          |
  82.         1K         ^   |                              |____|     ___  |
  83.                    |___|                              |          o o  |
  84.                                                       | /\/\/\___| |__|
  85.           (pAakala                 Administrator:  Gary W. Krumbine
  86. Gen Directorate Of Post &                   AT&T Information Systems
  87. Phone:  35806921730                         Lincroft, NJ  07738
  88.                                             Phone:  +1 201 576 2658
  89.  
  90. MHS Gateway:  mhs!telemail                  MHS Gateway:  mhs
  91. Administrator:  Jim Kelsay                  Administrator:  AT&T Mail MHS
  92. GTE Telenet Comm Corp                                       Gateway
  93. Reston, VA  22096                           AT&T
  94. Phone:  +1 703 689 6034                     Lincroft, NJ  08838
  95.                                             Phone:  +1 800 624 5672
  96.  
  97. CMR
  98. ~~~
  99. Previously known as Intermail, the Commercial Mail Relay (CMR) Service is a
  100. mail relay service between the Internet and three commercial electronic mail
  101. systems:  US Sprint/Telenet, MCI-Mail, and DIALCOM systems (i.e. Compmail,
  102. NSFMAIL, and USDA-MAIL).
  103.  
  104. An important note:  The only requirement for using this mail gateway is that
  105. the work conducted
  106.  
  107. Downloaded From P-80 International Information Systems 304-744-2253
  108.