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STD LM3915 + 555 TIMER VU-METER
License: Public Domain
Mode: Editors' pick
- 2
Update time：
2020-03-21 12:55:46
Creation time：
2018-11-28 18:54:02
Description
JUST A SIMPLE STEREO VU-METER USING THE LM3915 IN COMBINATION WITH A 555 WITCH WILL BE CONFIGURED AS A BYSTABLE MULTY VIBRATOR . THE PORPOUSE OF THE 555 TIMEWILL BE TO BE ABLE TO CHARGE THE LED MODE FROM BAR TO DOT MODE
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| ID | Name | Designator | Footprint | Quantity | Mounted | |
|---|---|---|---|---|---|---|
| 1 | LM3915 | U1,U2 | DIP18 | 2 | Yes | |
| 2 | 220R | R1,R2 | AXIAL-0.3 | 2 | Yes | |
| 3 | 2.2k | R3 | AXIAL-0.3 | 1 | Yes | |
| 4 | 2.2K | R4 | AXIAL-0.3 | 1 | Yes | |
| 5 | LED-3MM | LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8,LED9,LED10,LED11,LED12,LED13,LED14,LED15,LED16,LED17,LED18,LED19,LED20 | LED-3MM/2.54 | 20 | Yes | C99772 |
| 6 | AUDIO SIGNAL IN | P1 | HDR-3X1/2.54 | 1 | Yes | C49257 |
| 7 | 10K | R5,R6 | RES-ADJ_3386P | 2 | Yes | C125022 |
| 8 | NE555P | U3 | DIP-8 | 1 | Yes | C46749 |
| 9 | 10nF | C3 | RAD-0.1 | 1 | Yes | |
| 10 | 470R | R7 | AXIAL-0.3 | 1 | Yes | |
| 11 | BC547 - NPN | Q1 | TO-92(TO-92-3) | 1 | Yes | C2092 |
| 12 | SRD-03VDC-SL-C | RELAY1 | RELAY-SL-SRD | 1 | Yes | C24585 |
| 13 | 1N4007 | D1,D2,D3,D4,D5,D6,D7 | DO-35 | 7 | Yes | C54037 |
| 14 | 50V 0.1uF | C4 | CAP-D3.0XF1.5 | 1 | Yes | |
| 15 | 1k | R9,R16,R18,R19 | AXIAL-0.3 | 4 | Yes | |
| 16 | 100k | R10 | AXIAL-0.3 | 1 | Yes | |
| 17 | 10k | R11,R12 | AXIAL-0.3 | 2 | Yes | |
| 18 | EVQ22705R | SW1 | KEY-6.0*6.0-4 | 1 | Yes | C79156 |
| 19 | 1u | C5,C1,C6 | CAP-D3.0XF1.5 | 3 | Yes | |
| 20 | BC547 | Q3,Q2 | TO-92(TO-92-3) | 2 | Yes | C2092 |
| 21 | 8.2k | R8,R14 | AXIAL-0.4 | 2 | Yes | |
| 22 | 300k | R13,R15 | AXIAL-0.4 | 2 | Yes | |
| 23 | 10uF | C2,C7 | CAP-D3.0XF1.5 | 2 | Yes | |
| 24 | 0.47 uF (474) | C8,C9 | CAP-D3.0XF1.5 | 2 | Yes | |
| 25 | 200k | R17 | AXIAL-0.3 | 1 | Yes |
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