FM-MIKE 88 - 110 MHZ ________ \ANT / ������Ŀ \ � / � � \� / Q2 �������������������������Ŀ � \/ C6 R8 �� �C7 \� L1 � ����� �Ĵ��/\/\/\/\����ſNPN ��� ��\��C8 � � � �>������R1 �\| � � � ��/\/\/\/\����������Ĵ�Ĵ � � R10 � C9 � � ����/\/\/\/\�����)�����������Ĵ � � C10 � � � � � ���Ĵ����Ŀ � � � � ����/\/\/\/\����Ĵ � �������� � R9 � � ���� B1 ������������������������������Ĵ � �������� �)�������������������������Ŀ � � ���� � C1��Ĵ��������)����������)����Ĵ � � C2 � � � � ����� R2 � R1 ��Ĵ���� � � � ��� �/\/\/\/\� �/\/\/\/\��� R7 � � � � ���Ĵ���Ĵ � �������/\/\/\/\���)����������� � R� C3 � � � � � � e� ����� � � � R4 � � d� �Shield � � ���/\/\/\/\���� � ������� � � R3 �� Q1 � � �White � ���/\/\/\/\���ſNPN R6 � �MIKE �������������������Ĵ��Ĵ �>�/\/\/\/\����Ĵ ������� C4� ���Ĵ����� � ��/\/\/\/\�� C5 � � R5 � ������������������������������� I.D. Val Quantity R1 10 K ohm 1/4 Watt 1 R2,6,7,8 1 K ohm 1/4 Watt 4 R3 100 K ohm 1/4 Watt 1 R4 8.2 K ohm 1/4 Watt 1 R5,10 15 K ohm 1/4 Watt 2 R9 3.9 K ohm 1/4 Watt 1 R11 220 ohm 1 C1 100 uF 25V (electrolytic) 1 C2 470 pF 50V 1 (may not be needed) C3,5 10 uF 25V 2 C4,9,10 .01 uF 50V (disc) 3 C6 1 uF 50V (electrolytic) 1 C7 5 pF (mica, zero temp) 1 C8 6 - 35 pF Trimmer cap 1 Q1,2 PN2222 (NPN High Beta) 2 M1 F.E.T. Cap Mike (Field Effect, capacitive. Radio shack elec. or even 8 ohm speaker (with resistors) will work ok) B1 9 V Transistor battery. L1 ** 8 turns of number 16 guage buss (solid) wire around a number 8 wood screw. ANT Wire attached to 2nd (or 3rd) coil of L1. (Soldered, and strain relieved.) Length may be approx 6". For experimental purposes, try this. 300,000,000 METERS ______________ operating frequency If operating frequency is 109 Mhz (Mega, or million Hertz), 300,000,000 divided by 109,000,000 = 2.752 Meters Take a wire 2.752 meters long, cut it in half, put one half on the 2nd (or 3rd) coil, the other half on the - (ground) side of the battery, and make the two 180 degrees apart. Works great!