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STD PreAMP

License: Public Domain

Mode: Editors' pick

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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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