LIGHTNING LIGHTS

10 LEDs light up from top to bottom,following the lightning bolt’s path. The LEDsturn off back up into the cloud. The displaylooks best with backlighting. The bolt seemsto glow in the dark.

Connect lights to the pulse output oflightning or sferics detectors or any audiosource.

©2013Lennie Zink

ENHANCED PICTURE(TRANSPARENCY FILM)

PROPOSED WOODEN FRAME

©2013Lennie Zink

LIGHTNING LIGHTS

LIGHTNING INTENSITY LEDS V2©2013 LENNIE ZINK

(MOUNT VR2 THIS SIDE)

3V

INPUTSIGNAL

LED 1

LED 2

LED 3LED 4

LED 5

LED 6

LED 7

LED 8

LED 9

LED 10

VR2LEVEL

LIGHTNING INTENSITYLEDS V2©2013 LENNIE ZINK

(MOUNT VR2 THIS SIDE)

3V

INPUTSIGNAL

LED 1

LED 2

LED 3LED 4

LED 5

LED 6

LED 7

LED 8

LED 9

LED 10

VR2LEVEL

109

181

17

16

15

14

13

12

11

2

3

4

5

6

7

8

IC1

LM3914

B

E

C

R31K

C22.2mF

R4680R

C11mF

R4470R

D11N4148

VR2100K

JUMPER

PARTS LAYOUT BOTTOM VIEW

Q12N4403

C32.2mF

TEMPLATEFOR

DRILLING CLEARPLASTIC PIECES

IC1LM3914

BAR/DOT DISPLAY DRIVER

1181716151413121110

Q12N4403

3

9

482675

R1470R

VR2100K

LED10 23456789

LED1

R31K

*C22.2mF

or larger

D11N4148

**R4680R

C32.2mF

3V

GND

C11mF

LEDS: ULTRA-BRIGHT 3.2FV

**R4 LED SETSBRIGHTNESS

OUTPUTFROM

DETECTOROR AUDIOSOURCE

(VU METER)

*C2 SETSRESPONSE TIMELIGHTNING LIGHTS

©2013Lennie Zink

Original: Led light based music circuit with LM3914http://www.eleccircuit.com/lets-to-build-many-vu-meter-circuits-with-lm3914/