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STD hi-fi preamplifier
License: GPL 3.0
Mode: Editors' pick
- 4
Update time：
2020-05-20 21:09:09
Creation time：
2020-01-14 08:10:35
Description
Hi-fi preamplifier including main preamop circuit (KIT014) and a digital sound switch (KIT005)
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Quantity |
|---|---|---|---|
| 1 | IN4L | P5 | 1 |
| 2 | 1N4001 | D1 | 1 |
| 3 | 2P4W_switch | S1 | 1 |
| 4 | 47u/25V | C7 | 1 |
| 5 | IN4 | LED4 | 1 |
| 6 | IN2 | LED2 | 1 |
| 7 | IN1 | LED1 | 1 |
| 8 | IN3 | LED3 | 1 |
| 9 | 100n | C5,C13,C10,C1,C4,C11,C12,C3,C2,C8,C18,C112,C212 | 13 |
| 10 | 220n | C6,C9 | 2 |
| 11 | 1k | R4,R5,R1,R2,R3 | 5 |
| 12 | 10k | R8,R7,R106,R206 | 4 |
| 13 | 100 | R6,R9 | 2 |
| 14 | CD4066 | U2,U1 | 2 |
| 15 | IN2L | P3 | 1 |
| 16 | IN3R | P10 | 1 |
| 17 | IN2R | P8 | 1 |
| 18 | IN3L | P2 | 1 |
| 19 | IN4R | P11 | 1 |
| 20 | Phono IN (R) | P15 | 1 |
| 21 | Phono IN (L) | P12 | 1 |
| 22 | OUT (R) | P13 | 1 |
| 23 | OUT (L) | P1 | 1 |
| 24 | 15V/1A | T1 | 1 |
| 25 | Mains IEC | J1 | 1 |
| 26 | 4u7/10V | C103,C203 | 2 |
| 27 | 2u2/10V | C201,C204,C104,C101 | 4 |
| 28 | 10u/10V | C211,C111 | 2 |
| 29 | 10u/25V | C202,C102 | 2 |
| 30 | 470u/35V | C16 | 1 |
| 31 | 2u2/25V | C214,C114 | 2 |
| 32 | 100u/10V | C115 | 1 |
| 33 | B40C500 | BR1 | 1 |
| 34 | 68n | C208,C108 | 2 |
| 35 | 330n | C17 | 1 |
| 36 | 4n7 | C106,C206 | 2 |
| 37 | 560p | C109,C209 | 2 |
| 38 | 15n | C105,C205 | 2 |
| 39 | 6n8 | C207,C110,C107,C210 | 4 |
| 40 | 150p | C113,C213 | 2 |
| 41 | 220k/log/stereo | P1A,P3B,P2A,P2B,P1B,P3A | 6 |
| 42 | 1k/lin | P4 | 1 |
| 43 | 15k | R207,R213,R113,R107 | 4 |
| 44 | 470k | R215,R115 | 2 |
| 45 | 680 | R218,R118 | 2 |
| 46 | 39k | R217,R117 | 2 |
| 47 | 12k | R212,R112 | 2 |
| 48 | 120 | R119,R219 | 2 |
| 49 | 47k | R110,R210,R201,R101 | 4 |
| 50 | 33k | R214,R114 | 2 |
| 51 | 150k | R108,R208,R105,R205 | 4 |
| 52 | 2k7 | R211,R111 | 2 |
| 53 | 270 | R204,R104 | 2 |
| 54 | 820 | R203,R103 | 2 |
| 55 | 180 | R202,R102 | 2 |
| 56 | 1k5 | R116,R216 | 2 |
| 57 | MC7812CT | U4 | 1 |
| 58 | On/Off | S2 | 1 |
| 59 | TDA1054M | U5,U3 | 2 |
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