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STD PreAMP
License: Public Domain
Mode: Editors' pick
- 0
Update time：
2023-12-20 12:34:29
Creation time：
2023-11-25 09:32:20
Description
Preamp Circuit PCB for TDA 7288 Amplifier
Compact design with Treble Mid Bass individual adjustment
For Low filter NE5532 IC used
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | Package Display | |
|---|---|---|---|---|---|---|
| 1 | TREBLE | 50K_VC | POTENTIOMETER_ALPS_RK163_DOUBLE_VERTICAL | 1 | ALPS163 | |
| 2 | MID | 50K_VC2 | POTENTIOMETER_ALPS_RK163_DOUBLE_VERTICAL | 1 | ALPS163 | |
| 3 | BASS | 50K_VC3 | POTENTIOMETER_ALPS_RK163_DOUBLE_VERTICAL | 1 | ALPS163 | |
| 4 | VOLUME | 50K_VC4 | POTENTIOMETER_ALPS_RK163_DOUBLE_VERTICAL | 1 | ALPS163 | |
| 5 | 104 | 104_1,C17,C18 | CAP-TH_L7.5-W2.5-P5.08-D1.0 | 3 | 100nF (104) ±20% 100V | |
| 6 | 10uF | C2,C13,C16 | CAP-TH_BD5.0-P2.00-D0.8-FD | 3 | 1UF 50VBLACK GOLD 5*11 (O) | |
| 7 | 1uF | C3,C4,C11,C12 | CAP-TH_BD5.0-P2.00-D0.8-FD | 4 | 1UF 50VBLACK GOLD 5*11 (O) | |
| 8 | 471 | C5,C6,C8,C10 | RAD-0.1 | 4 | 470PF COPY | |
| 9 | 472 | C7,C9 | CAP-TH_L7.2-W2.5-P5.00-D0.6 | 2 | 4.7NF 100V THT FILM 100C401105 THT SMEC472J100M1 | |
| 10 | 2200uF | C14 | CAP2200UFX25V-13X20(5MM, D-0.6) | 1 | 2200uF | |
| 11 | 100uF | C15 | CAP100UF25V | 1 | Cap100uF25V | |
| 12 | IN4007 | D1,D2 | IN4007 | 2 | IN4007 COPY | |
| 13 | L_INPUT_R | INPUT | CONN-TH_3P-P5.00_WJ300V-5.00-3P | 1 | WJ300V-5.0-3P | |
| 14 | R_OUTPUT_L | OUTPUT | CONN-TH_3P-P5.00_WJ300V-5.00-3P | 1 | WJ300V-5.0-3P | |
| 15 | POWER+ | P1 | CONN-TH_2P-P5.00_WJ300V-5.00-2P | 1 | WJ300V-5.0-2P | |
| 16 | CONN-TH_2P-P5.00 | P2 | CONN-TH_2P-P5.00 | 1 | CONN-TH_2P-P5.00 | |
| 17 | 2K7 | R1,R2 | AXIAL-0.3 | 2 | Resistor | |
| 18 | 220k | R3,R5 | AXIAL-0.3 | 2 | Resistor | |
| 19 | 100k | R4,R6 | AXIAL-0.3 | 2 | Resistor | |
| 20 | 2k7 | R7,R12 | AXIAL-0.3 | 2 | Resistor | |
| 21 | 10K | R8 | AXIAL-0.3 | 1 | Resistor | |
| 22 | 100R | R9,R14 | AXIAL-0.3 | 2 | Resistor | |
| 23 | 1K | R10,R11 | AXIAL-0.3 | 2 | Resistor | |
| 24 | 10k | R13 | AXIAL-0.3 | 1 | Resistor | |
| 25 | NE5532/4558 | U1 | SPG NE5532 | 1 | NE5532 | |
| 26 | LM7812 | U2 | LM7812 | 1 | LM7812 |
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