Home
You Are Here: Home » Zines » Phrack Inc Volume Three, Issue 28

Phrack Inc Volume Three, Issue 28

==Phrack Inc.==

Volume Three, Issue 28, File #5 of 12

/////////////////////\\\\\\\\\\\\\\\\\\\\\
|| ||
|| A Real Functioning PEARL BOX
Schematic ||
|| ||
|| Written, Tested, and Used ||
|| ||
|| by Dispater
||
|| ||
|| July 1, 1989 ||
|| ||

\\\\\\\\\\\\\\\\\\\\\/////////////////////

Introduction: After reading the
earlier renditions of schematics for the Pearl
Box, I decided that there was an easier and
cheaper way of doing
the same thing with an IC and parts you probably have just
laying
around the house.

What Is A Pearl Box and Why Do I Want One?

A
Pearl Box is a tone generating device that is used to make a wide range
of single tones.
Therefore, it would be very easy to modify this basic
design to make a Blue Box by making 2
Pearl Boxes and joining them
together in some fashion.

A Pearl Box can be used to
create any tone you wish that other boxes may
not. It also has a tone sweep option that can be
used for numerous things
like detecting different types of phone tapping devices.

Parts List:

CD4049 RCA integrated circuit
.1 uF disk capacitor
1 uF
16V electrolitic capacitor
1K resistor
10M resistor
1meg pot
1N914 diode
Some SPST momentary push-button switches
1 SPDT toggle switch
9 Volt battery &
clip
and miscellaneous stuff you should have laying around the house.


State-of-the-Art-Text Schematic:
+ 16V 1uF –
_______________________________||_____
| ! ! || | _
| _______________________ |__________| |/| 8ohms

____|__|_____:__|__:__|_ | __________| | |
| 9 10 11 12 13 14 15 16 | | | |_|\|
|
CD4049UBE | | |
|_1__2__3__4__5__6__7__8_| : | _
| | |__| |__| |
|____________________|_________[-] | | ! ! : [b] | |__________________________| [a] | : : | [t] | ! 1N914 ! ! [t]
|___________|/|_____________________________________[+] : |\| : :
| | |
| 10M |
|
|___/\/\/\__| |
| | |
|_____||____| | <– These 2 wires to the center pole
|| | | of switch.
.1uF 50V | |
| |
_______________________|
|_____________________________
| ___[Toggle Switch]____________ |
| | | ___ |
| |
| o o |
| | | /\/\/\___| |__|
|_/\/\/\____/\/\/\ | | ^ |
1K ^ | |____| ___ |

|___| | o o |
| /\/\/\___| |__|
(pAakala Administrator: Gary W. Krumbine
Gen
Directorate Of Post & AT&T Information Systems
Phone: 35806921730 Lincroft, NJ
07738
Phone: +1 201 576 2658

MHS Gateway: mhs!telemail MHS Gateway: mhs

Administrator: Jim Kelsay Administrator: AT&T Mail MHS
GTE Telenet Comm Corp Gateway

Reston, VA 22096 AT&T
Phone: +1 703 689 6034 Lincroft, NJ 08838
Phone: +1 800 624
5672

CMR
~~~
Previously known as Intermail, the Commercial Mail Relay (CMR)
Service is a
mail relay service between the Internet and three commercial electronic mail
systems: US Sprint/Telenet, MCI-Mail, and DIALCOM systems (i.e. Compmail,
NSFMAIL, and
USDA-MAIL).

An important note: The only requirement for using this mail gateway is
that
the work conducted

– Exodus -


Leave a Comment

Scroll to top