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				==Phrack Inc.==
		    Volume One, Issue Three, Phile #7 of 10
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	***************************************************************
	*							      *
	*		Electronic Eavesdropper 		      *
	*							      *
	*		by					      *
	*							      *
	*		Circle Lord				      *
	*							      *
	***************************************************************


  Have you ever considered buying one of those hi powered microphones often
seen in eletronics magazines, but thought it was to much to buy and to small to
card?  The circuit shown in this file will provide you with the information to
build one for a lot less money.

  These audio eavesdropping devices are probably one of the hottest items in
the underground due to their ability to pick up voices through thick walls.
You can also attach the speaker wires to a tape recorder and save all the
conversation.  As one can see these are great for blackmailing a teacher,
classmate, principal, neighbor, or whoever you seek services from...


Parts list:

-=EM--------------------------
M1    Amplifier Module. (Lafayette 99C9037 or equiv.)
M2    9-VDC battery.
M3    Microphone
R1    20K poteniometer with spst switch.
S1    Spst switch on R1
SP1   8-ohm speaker
T1    Audio transformer (Radio Crap part # 273-1380)



			Schematics
			+------+--------M1
			1      1	1
			1      1red	1blu
			1      1	1
			1      transformer
			1      1	1
			1      1yel	1grn
			+------+	1
			       1  +-----+      +-----+
			       1  1	       1     1
			      b1 b1 r+M2+b o+S1+o    1
			      l1 l1 e1	1l r1  1r    1
			      k1 u1 d1	1k g1  1g    1
			    **********************   1
			   *		    yel>*-+  ++
			   *			* R   1
			   *	     M1 	* 1-+ 1
			   *		    red>*-+ 1 1
			   *			*   1<<
			   **********************   1
			     b1   1g	y1	    1
			     l1   1r	e1	    1
			     k1   1y	l1	    1
			      1   1	 +----------+
			      +SP1+


S1 here is on the potentiometer
M3 can be an earphone earpiece




			       ----	     /
			      / 	    /
			     /		   /
			    /	 ircle	  /    ord
			    ----	  ----