Tube Mic Preamp

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STD Tube Mic Preamp

Audio

Home_Electronics

Communication

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Editors' pick

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

schematic diagram

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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