1

3

2

 3 

 1 

1

2

1

2

-

I

O

ICL7107

4049N

1

N

4

1

4

8

1

N

4

1

4

8

100uF

1

0

0

K

100pF

L

M

3

5

8

N

HD-H101

HD-H101

HD-H101

HD-H101

1N4004
1N4004

3

3

0

100nF

10K

75K

2

2

0

n

F

2

2

0

n

F

1

0

0

K

10uF

1

0

0

n

F

10uF

100uF

10nF

S

U

P

P

L

Y

L

O

A

D

1

K

4

7

K

0R1/5W

N-CH

1

n

F

4

R

7

1K

10K

1

0

0

n

F

1

0

0

n

F

BC337

BC327

10uF

7805

N-CH

4R

7

4K7