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STD Tube Mic Preamp

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Update time： 2021-12-07 21:54:47
Creation time： 2021-12-07 18:09:40
Description

I "converted" a random 2002 mic pre schematic to easy eda.

Design Drawing
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PCB
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BOM
BOM download Purchase Parts
ID Name Designator Footprint Quantity
1 470uF C1,C23 CASE-A_3216 2
2 470uF 50V C2,C5,C19,C22 CASE-A_3216 4
3 10pF 1KV C3,C21 C0603 2
4 2.2uF 250Vmin C4,C8,C16,C20 C0603 4
5 0.1uF 250Vmin C6,C18 C0603 2
6 10uF 350V C7,C17 CASE-A_3216 2
7 47uF 100V C9 CASE-A_3216 1
8 100uF 100V C10,C11,C12 CASE-A_3216 3
9 100uF 450VDC C13 CAP-D3.0×F1.5 1
10 10uF 450V C14,C15 CAP-D3.0×F1.5 2
11 BRIDGE RECTIFIER D1,D7 BRIDGE RECTIFIER BR108 2
12 1N4007 D2,D5 SOD-123_L2.8-W1.8-LS3.7-RD 2
13 1N4742A 12V 1W D3,D8,D9 DIODE-ZENER 3
14 1N4007 D4,D6,D11 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 3
15 IN4760A 1W D10 DIODE-ZENER 1
16 XLR-328-1 J1,J2,J3,J4 CONN-TH_XLR-328P 4
17 LED-0603_R LED1,LED2 LED0603_RED 2
18 IRF530 Q1 TO220BV 1
19 MPSA92 Q2 MPSA92 1
20 IRF820 Q3 TO-220-3_L10.0-W4.5-P2.54-L 1
21 180k Q R1,R43 R0603 2
22 665 Q R2,R3,R41,R42 R0603 4
23 182 Q R4,R40 R0603 2
24 6.8k Q R5,R6,R38,R39 R0603 4
25 10K H R7,R37 R0603 2
26 2.2M Q R8,R13,R31,R36 R0603 4
27 2.1k Q R9,R12,R32,R35 R0603 4
28 68K H R10,R34 R0603 2
29 150K H R11,R33 R0603 2
30 499 H R14,R30 R0603 2
31 4.99K H R15,R16,R28,R29 R0603 4
32 2.2 Q R17,R27 R0603 2
33 27 3W R18 R0603 1
34 220K H R19,R24 R0603 2
35 100K H R20 R0603 1
36 36 3W R21 R0603 1
37 33K H R22 R0603 1
38 3.6k 5W R23 R0603 1
39 499K H R25 R0603 1
40 100 H R26 R0603 1
41 820 Q R44 R0603 1
42 100K AT RP1,RP2 RES-ADJ-TH_3386P 2
43 100 Q RP3 RES-ADJ-TH_3386P 1
44 Sw Stomp DPDT PCB SW1,SW2,SW3,SW4 DPDT FOOTSWITCH STOMPSWITCH PCB 4
45 TRS Mono TRS1,TRS2 NEUTRIK-MONO-SW 2
46 1:10 U1,U10 TRANSFORMERS44X35MM 2
47 4:1 U4,U7 TRANSFORMERS44X35MM 2
48 230V to 56V 430mA U5 TRANSFORMERS44X35MM 1
49 LM317F U6 TO-263-2_L10.1-W9.1-P5.08-LS15.2-BR 1
50 6072A/12AY7A V1,V2,V7,V8 12AX7-3P-A 4
51 12AU7A V3,V6 12AX7-3P-A 2
52 12AX7-VA V4,V5 12AX7-3P-A 2
53 6072A/12AY7A U2,U9 12AX7 SOCKET B9A 2
54 12AU7A U3,U8 12AX7 SOCKET B9A 2

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