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- BLACK BOX PLANS
-
- HERE IS HOW YOU CONSTRUCT A BLACK BOX.
-
- WHEN YOUR PHONE IS JUST SITTING THERE DOING NOTHING
- THE VOLTAGE THROUGH THE PHONE LINE IS ZERO. THEN IF SOMEONE
- CALLS YOU (FOR SOME STRANGE REASON) AND THE PHONE IS
- RINGING. THE VOLTAGE JUMPS TO 48 VOLTS WHICH TELLS MA
- BELL TO STAND BY IF YOU SHOULD PICK UP SO SHE CAN
- BILL YOU. WHEN YOU EVENTUALLY PICK UP THE PHONE, THE
- VOLTAGE DROPS TO 10 VOLTS AND THE BILLING STARTS. WHAT
- A BLACK BOX DOES IS KEEPS THE THE VOLTAGE AS 36 VOLTS,
- THEREFORE THE INCOMING CALLER NEVER GETS BILLED (INGEINIOUS)
- THE ORIGINAL BLACK BOX WAS CREATED BY AN EX-BELL EMPLOYEE
- WHO WENT BY THE NAME "CAPTAIN CRUNCH". HE GOT HIS NAME
- FROM THOSE LITTLE WHISLES YOU GOT IN BOXES OF CAPTAIN CRUNCH
- BECAUSE THEY EMITED A TONE THAT WAS EQUAL TO A COIN.CAPTAIN
- CRUNCH JUST ANNOUNCED HIS RETIREMENT FROM PHREAKING
- WHEN HE WAS RELEASED FROM A CALIFORNIA JAIL. HE WAS
- CAUGHT WITH A BLUE BOX.
-
- CONSTRUCTION OF A
- BLACK BOX
-
- 1] A 36 VOLT ZENER DIODE.
- 2] A CERAMIC OR MYLAR CAPACITOR OF 0.1 MICROFARAD.
- 3] A ELECTROLYTIC CAPACITOR OF 1.0 MICROFARAD.
-
- YOU CAN GET THESE AT YOUR LOCAL RADIO SHACK DEALER.
-
- FIRST YOU HAVE TO OPEN UP YOUR PHONE.YOU SHOULD
- NOTICE THREE WIRES COMING IN FROM THE BACK OF THE PHONE,
- A GREEN, RED, AND YELLOW. MOST OF THE TIME THEY CAN
- DIFFER.DON'T WORRY ABOUT THE YELLOW WIRE, WE WILL
- NOT BE USING THIS.YOU WILL NEED TO FIND THE MOST
- POSITIVE OF THE REMAINING TWO WIRES.(ALMOST ALWAYS
- THE GREEN WIRE). NOW CONNECT THE BANDED END OF THE ZENER
- DIODE TO THE MORE POSITIVE OF THESE TWO WIRES. "IN
- SERIES". YOU HAVE JUST COMPLETED THE FIRST STEP.
- FOR THE SECOND STEP YOU NEED A CERAMIC OR MYLAR
- CAPACITOR OF 0.1 MICROFARAD. YOU CONNECT THIS
- "IN PARRALLEL" ACROSS THE DIODE. THIS IS NEEDED TO
- ALLOW THE DIODE TO PASS VOICE SIGNALS.
- NOW FOR THE FINAL STEP TAKE YOUR ELECTROLYTIC
- CAPACITOR OF UP TO ONE MICROFARAD WITH ITS '+'
- END CONNECTED TO THE BANDED END OF THE DIODE
- AND THE OTHER END SHOULD BE CONNECTED TO THE ANODE
- END OF THE DIODE. MA BELL IS NOT TOTALLY OBLIVIOUS
- TO THIS.IF THE PHONE RINGS FOR ABOUT A HALF-HOUR THEY
- WILL THINK SOMETHING IS WRONG AND BILL YOU ANYWAY.
- WHEN USING A BLACK BOX,YOUR PHONE WILL CONTINUE
- RING EVEN THOUGH YOU PICKED IT UP. YOU HAVE TO MAKE A
- SWITCH TO CONNECT ONE OF THE RINGER WIRES.THAT WILL
- SHUT IT OFF. THAT'S IT! HAVE PHUN!!!!!!!!!!!!!!!!
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