A

A

B

B

C

C

D

D

E

E

4 4

3 3

2 2

1 1

L1:

Wind 6 turns of solid wire on a pen or pencil that

is just under 1/2 inch in diameter. Remove the

wire from the pencil and spread the winding to

make a length of 3/4 inch. Solder C2 somewhere

near the middle of the coil.

123

TL431BottomView

2N4416 Bottom ViewThe case lead shouldbe grounded.

case

gate

source

drain

D

SG

+

SFM1 Copyright 1999-2001 LTJ Designs 1.5

Simple FM Radio by Andrew Mitz, LTJ Designs

A

1 1Thursday, February 15, 2001

Title

Size Document Number Rev

Date: Sheet of

Q12N4416

L1see text

R21K

C3A70pf

C8.001

L222uhrfc

EPH1

High Z earphone

BT19v

C1B

10pf

C5.001uf

C7.005uf R4

10K

C3B140pf

C2

24pf

C1A

10pf

R31K

R6100 S1

D1TL431CLP

23

1

C6.22uf

+

C922uf16v

R51M

R1470K

C4330pf