Pay
Simple Stereo Level Indicator

Simple Stereo Level Indicator

3

IC2

LM3915

7

4

1

18

17

16

15

14

13

12

5

11

6

10

8

9

2

RLO

V

-

IN

MODE

REFADJ.

RHI

REF

OUT

C7, 0.033μ

3

IC1

LM3915

7

4

1

18

17

16

15

14

13

12

5

11

6

10

8

9

2

RLO

V

-

IN

MODE

REFADJ.

RHI

REF

OUT

MODE

+

C6

100μ

35V

+

+

CON2

OUTPUT

C4

1n

CON1

INPUT

C1

2.2μ

35V

VR1

22K

R1

22K

R6

1.2K

R7

8.2K

LED10

LED9

LED8

LED7

LED6

LED5

LED4

LED3

LED2

LED1

LED11

LED12

LED13

LED14

LED15

LED16

LED17

LED18

LED19

LED20

LED21

POWER

R4

1.2K

2 (BAR)

12V

GND

CON3

GND

1 (DOT)

R3

1K

S1

R5

8.2K

R2

22K

VR2

22K

2 (BAR)

1 (DOT)

S1

C5

0.33μ

C2

2.2μ

35V

C3

1n

Simple Stereo Level Indicator

4
0
0
publish time: 2020-09-24
Circuit Everyday

Generally, low-priced home stereos do not have an output level indicator. An output level indicator can be added to each channel of these stereo powers. Since low-level output power will not cause interference and damage to personnel, there is no need to add a preamplifier and low-level detector before the IC LM3915.

See More Related Templates