120 lines
4.7 KiB
Plaintext
120 lines
4.7 KiB
Plaintext
Unauthorised Access UK
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(0636) 708063
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10pm - 7am
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12oo/24oo
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________________________________________________________________________
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2280hz Blue Box Circuit - from 0943 817010 *** OPEN SOON ***
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________________________________________________________________________
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Circuit Diagram -
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/ Connect to Send
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_______________________ ____/ __________________
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! ! ! !
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! ! ! /! !
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_________! ____ ________ __ ! _! / ! Small !
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! ______!_____! ____ ! ! ! !__! ! Loudspeaker !
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! ! __!_____!_____!__!__!__ ! ! \ ! !
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! ! ! E D C B A 9 8 ! ! ! \! !
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! ! ! ! ! ! ! !
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! ! ! 4047B IC ! ! ! ! 100 Ohm Resistor !
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! ! ! ! ! ! ! !
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! ! !__1__2__3__4__5__6__7__! ! ! !
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! ! ! ! ! ! ! ! ! ! ! __!__ +ve
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! ! ! ! ! !__!__!__! ____! ! ___ 9v cell
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! ! ! ! ! ______! ! ! -ve
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! ! _! _! ! ! __________! !
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! ! ! ! ! ! / ! !
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! !____! ! ____! ___! ___!/ ! !
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! ! ! ! ! !\ ZTX 300 ! !
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! 0.01uF! !_! !_! ! \ ___! !
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! ! ! ! ! ! ! / !
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! ! ! ! !___!/ !
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! ! ! ! !\ ZTX 300 !
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! ! ! ! \___________________________!
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! ! ! ! ! ! !
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! 10K ! ! ! ! 80! !
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! Ohms ! ! ! ! Ohms !
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! ! ! ! !
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! ! ! ! !
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! 6.2 ! ! ! ! !
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! Ohms ! ! ! ! !
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! ! ! ! ! !
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! !_______! ! !
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! ! !
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!____________________!_________________________________________!
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Components List -
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1 4047B IC (about 25p)
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2 ZTX 300 transistors (about 14p each)
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1 0.01uF ceramic disc capacitor (about 5p)
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1 10K resistor (about 2p)
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1 100 ohm resistor (about 2p)
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1 80 ohm resistor (about 2p)
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1 6.2 ohm resistor (about 2p)
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1 10x24 veroboard (about 40p)
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1 Miniature Loudspeaker (about 90p)
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1 Push to connect switch (about 40p)
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Total cost 2.20
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Extras -
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1 blue coloured box (spray this pink to conceal purpose of device)
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1 9v battery
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Construction -
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The device is very simple to construct and can be made small enough
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to fit onto a 10x24 veroboard.
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Note: ZTX 300 Transistor
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/ collector
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base !/
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!\
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\ emitter
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How the Device Works -
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The three resistors and the capacitor set the frequency.
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If the capacitor is 0.1uF then the resistor value can be calculated
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in the following way:
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R = 23000000
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________
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frequency
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So, the resistor value for 2600hz would be:
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R = 23000000 = 8846.15 Ohms (this is no good, however because it
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________ must be more than 10K)
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2600
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The frequency that the 4047B outputs is then amplified by the two
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transistors(a darlington pair) before being put through the loudspeaker.
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Using the Device -
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1) Dial a long-distance unobtainable number.
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2) Hold the speaker against the phone microphone.
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3) Send the 2280hz tone by holding the switch down on the device.
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4) Pulse/Tone(exchange dependent)dial the exchange number.
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5) Dial number to connect to.
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For more information on this see 'phreak' on 0943 817010 (24 hours)
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** OPEN SOON **
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NB: DO NOT CONNECT THIS DEVICE INDIRECTLY OR DIRECTLY TO ANY TELEPHONE
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NETWORK IN THE UK.
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_______________________________________________________________________
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Feel free to add your own credits, but don't remove those that are
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already there !
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_______________________________________________________________________
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Downloaded From P-80 Systems 304-744-2253 * Since 1980 *
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