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STD LM3915 UA741 Vu-meter

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  • 1.1k
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Update time: 2023-02-04 19:50:20
Creation time: 2021-04-14 15:59:18
Description

This is a Vu-meter that uses the IC LM3915 and UA741. UA741 is amplifing the signal based on the poosition of PR1 trimmer.

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ID Name Designator Footprint Quantity
1 220nF C1,C8 RAD-0.2 2
2 100nF C2 RAD-0.2 1
3 1uF C3,C7 RAD-0.2 2
4 47uF C4,C6 CAP-D5.0×F2.0 2
5 220uF C5 CAP-TH_BD8.0-P3.50-D1.0-FD 1
6 1N4148 D1,D2,D3,D4 DO-35_BD2.0-L4.0-P8.00-D0.5-FD 4
7 Bar(on)/Dot(off) K1,K2 SWITCHSILICONE 2
8 HL-304H3GD 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
9 INL/R P1 HDR-TH_3P-P2.54-V 1
10 VCC P2 HDR-1X2/2.54 1
11 220k PR1,PR2 RES-ADJ_3296W 2
12 47k R1,R2,R15,R16 R_AXIAL-0.3 4
13 330 R3,R14 R_AXIAL-0.3 2
14 470k R4,R13 R_AXIAL-0.3 2
15 10k R5,R12 R_AXIAL-0.3 2
16 2k2 R6,R11 R_AXIAL-0.3 2
17 68/1W R7,R10 R_AXIAL-0.5 2
18 1k R8,R9 R_AXIAL-0.3 2
19 LM3915N U1,U4 DIP18 2
20 UA741IN U2,U3 DIP8 2
21 Z6V2 ZD1,ZD2 DO-35_BD2.0-L4.0-P8.00-D0.5-FD 2

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