randall RB-100

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STD randall RB-100

License: Public Domain

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Update time： 2021-03-20 13:18:10

Creation time： 2019-01-02 20:17:29

Description

preamp from RANDALL RB-100 100watt bass combo

Design Drawing

schematic diagram

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BA-200A
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BA-200B
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PCB

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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	210-91-04GB01	SCN1,SCN5,SCN8	PH-TH_4PIN-V-MALE-PITCH2.54-L	3
2	20k	VR11,VR12,VR14,VR15,VR16,VR18,VR4,VR5,VR6,VR7,VR8,VR3	RES-ADJ_3386P	12
3	100	VR17,VR9	RES-ADJ_3386P	2
4	MTP220-1108R1	SCN7,SCN6,SCN9	PH-TH_8PIN-H-MALE-PITCH2.00-L	3
5	1N4448	D2021,D2011,D605,D606	DO-35	4
6	3.9M	R103,R104	AXIAL-0.4	2
7	1k	R105,R107,R202,R110,R121	AXIAL-0.4	5
8	10k	R106,R502,R301,R119,R117,R118,R505,R215,R2141,R2101,R2091	AXIAL-0.4	11
9	1M	R201,R507,R205,R2171,R2081,R2161	AXIAL-0.4	6
10	22k	R108,R109,R506???	AXIAL-0.4	3
11	47k	R221,R222,R113,R122,R116,R2111,R2131	AXIAL-0.4	7
12	33k	R112,R111	AXIAL-0.4	2
13	5.1k	R114	AXIAL-0.4	1
14	240k	R115	AXIAL-0.4	1
15	1,8k	R120	AXIAL-0.4	1
16	1.5k	R501,R504	AXIAL-0.4	2
17	150k	R2121,R1	AXIAL-0.4	2
18	27k	R2191	AXIAL-0.4	1
19	2.6k	R2041,R2061	AXIAL-0.4	2
20	470k	R2031	AXIAL-0.4	1
21	15k	R2071	AXIAL-0.4	1
22	360k	R2201	AXIAL-0.4	1
23	a1015	Q501,Q504	TO-92(TO-92-3)	2
24	4558D	IC302,IC303,IC304,IC305,IC301	DIP-8_300MIL	5
25	1N4148W	D501,D502,D503,D504	SOD-123	4
26	10mf25v	C103,C104,C2051,C2	CAP-D3.0XF1.5	4
27	1u	C105,C201,C112,C117,C208,C601,C602,C604,C603,C605,C606	CAP-D3.0XF1.5	11
28	Header-Male-2.54_1x4	SCN2	DIP-1X4P-2.54MM-M	1
29	L7815	U1	TO-220(TO-220-3)	1
30	J112	Q101	TO92-INLINE	1
31	2sk30a	Q503,Q601,Q602,Q506	TO92-INLINE	4
32	Header-Male-2.54_1x3	SCN4	HDR-3X1/2.54	1
33	1SMB5925BT3G	ZD601	SMB	1
34	2,2u	C114,C115,C610	CAP-D3.0XF1.5	3
35	4,7u x 50v	C303	CAP-D3.0XF1.5	1
36	2.2u x 50v	C305	CAP-D3.0XF1.5	1
37	22u x 16v	C318,C302	CAP-D3.0XF1.5	2
38	22UX25V	C609	CAP-D3.0XF1.5	1
39	2SC1815	Q2011,Q2031,Q2041,Q2021	SOT-23(SOT-23-3)	4
40	L7915	U2	TO-220(TO-220-3)	1
41	0,01u	C101	RAD-0.1	1
42	0,1n	C102	RAD-0.1	1
43	???	C210,C162,C2041,C312,C315,C316,C301	RAD-0.1	7
44	473	C501,C108	RAD-0.1	2
45	221	C106,C113	RAD-0.1	2
46	102	C107	RAD-0.1	1
47	683	C110	RAD-0.1	1
48	103	C109,C2071,C2061	RAD-0.1	3
49	101	C116	RAD-0.1	1
50	104	C611,C311,C608,C607	RAD-0.1	4
51	223	C2031,C306,C308	RAD-0.1	3
52	474	C2021,C307	RAD-0.1	2
53	563	C313	RAD-0.1	1
54	332	C314	RAD-0.1	1
55	333	C304	RAD-0.1	1
56	153	C310	RAD-0.1	1
57	224	C309	RAD-0.1	1
58	121	C317	RAD-0.1	1
59	1N4007	D601-604	BRIDGE-WOB	1
60	B100k	VR1	RES-ADJ_3386P	1
61	B25k	VR2	RES-ADJ_3386P	1
62	A100k	VR13	RES-ADJ_3386P	1
63	B200k	VR10	RES-ADJ_3386P	1
64	100k	R101,R102,R309	AXIAL-0.3	3
65	390	R312,R314,R316,R304,R306,R308,R310,R320	AXIAL-0.3	8
66	68K	R313,R315,R317	AXIAL-0.3	3
67	56k	R305	AXIAL-0.3	1
68	82k	R307,R311	AXIAL-0.3	2
69	4.7k	R319,R303	AXIAL-0.3	2
70	47k	R318	AXIAL-0.3	1
71	10k	R302	AXIAL-0.3	1
72	2.2k	R601,R602	AXIAL-0.3	2
73	5W 240	R123	AXIAL-0.3	1
74	2.2K	R603	AXIAL-0.3	1
75	22K	R604	AXIAL-0.3	1
76	1M	R605	AXIAL-0.3	1
77	TL072	IC101,IC102	SOIC-8_150MIL	2
78	MTP220-1103R1	H1	PH-TH_3PIN-H-MALE-PITCH2.00-L	1
79	VDG/S-01L blue	SW1,SW2	VDG/S-01L	2
80	pass	JK1	AUDIO-PJ325	1
81	activ	JK2	AUDIO-PJ325	1
82	PHONES	JK3	AUDIO-PJ325	1
83	CA3080	IC1	NONE	1
84	red	LED501	LED-3MM/2.54	1
85	grn	LED502	LED-3MM/2.54	1
86	LED-3MM	LED601	LED-3MM/2.54	1
87	J103	Q502,Q505	TO92-INLINE	2
88	Header-Female-2.54_1x6	SCN3	HDR-6X1/2.54	1