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x0xb0x - TB-303 Clone

Categories
SynthDIY:Synthesizer
Features
Schematics | PCB layout | Instructions | PCB for sale | Kit for sale
PSU
+9v
PSU Note
AC

"The x0xb0x is not just another MIDI-controlled TB-303 clone. x0xb0x is a full reproduction of the original Roland synthesizer, with fully functional sequencer. The sequencer can be programmed just like the original 303 (ok its actually a little easier, we think) and can be used to control other synthesizers via any of its various output formats. 128 banks of track memory and 64 banks of pattern memory are stored in onboard EEPROM, no battery-backup is needed!"

This is probably *the* best DIY project on the planet! :-)
It is very well documented and you have the option to buy a complete kit or source the parts yourself.

It's all open source and sounds fantastic!

Images
x0xb0x
x0xb0x
Roland TB-303
Roland TB-303
Partlist
Component Count Designators Note  
SIL-9
1
IC15B
 
SIL-9
1
IC14
 
DIL-8
2
IC11 IC23
 
DIL-14
1
IC12
 
Package_0006_DIL-16
1
IC9
74HC174 or 74AC174
DIL-14
1
IC1
74HC126
Package_0006_DIL-16
3
IC16 IC17 IC18
74AC165 or 74HC165
DualTr-5
2
Q12 Q21 Q26
 
DualTr-5
1
Q22
 
TO-92
1
Q28
O
TO-92
1
Q39
Y
TO-92
10
Q1 Q2 Q8 Q9 Q10 Q27 Q31 Q33 Q36 Q38
P or AP
TO-92
24
Q3 Q4 Q5 Q11 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q23 Q24 Q25 Q29 Q30 Q32 Q34 Q35 Q37 Q40 Q41 Q50
F
Package_0006_DIL-16
5
IC4 IC5 IC6 IC7 IC8
74HC595
DIL-6
1
IC24
 
DIL-40
1
IC3
Programmed version from Adafruit
DIL-8
1
IC2
 
1
IC25
SMD device
TO-220
1
IC20
 
TO-92
1
IC21
 
TO-92
1
IC22
 
1
XTAL1
 
1
XTAL2
 
DO-41
4
D40 D41 D42 D43
 
DO-35
29
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D25 D26 D28 D29 D30 D31 D44 D45 D46 D47 D48 D24 D27 D35 D36 D32 D33 D34 D37
 
LED
40
LED1 - LED40
 
Capacitors
Value Count Type LS Designators Note  
100n
16
Ceramic
 
C1 C2 C4 C6 C103 C104 C106 C107 C108 C109 C110 C111 C112 C113 C202 C204
 
1u
2
Tantalum
 
C42 C62
 
1n
3
Polyester/Mylar
 
C34 C100 C101
 
6n8
1
Polyester/Mylar
 
C47
 
10n
5
Polyester/Mylar
 
C10 C20 C21 C33 C46
 
18n
1
Polyester/Mylar
 
C18
 
33n
5
Polyester/Mylar
 
C19 C24 C26 C36 C201
 
47n
1
Polyester/Mylar
 
C54
 
68n
1
Polyester/Mylar
 
C45
 
100n
3
Polyester/Mylar
 
C25 C27 C41
 
220n
1
Polyester/Mylar
 
C35
 
1u
13
Electrolytic
 
C11 C13 C14 C15 C17 C22 C23 C29 C38 C105 C58 C59 C56
50V
2u2
1
Electrolytic
 
C51
50V
10u
13
Electrolytic
 
C16 C30 C31 C32 C37 C40 C50 C52 C60 C61 C72 C203 C205
16V or 35V
47u
4
Electrolytic
 
C28 C44 C53 C55
10V
100u
3
Electrolytic
 
C48 C49 C102
10V
100u
1
Electrolytic
 
C7 C8
25V
1000u
1
Electrolytic
 
C43
10V
2200u
2
Electrolytic
 
C3 C5
16V
Resistors
Value Count Type Designators Note  
10
2
5%
R186 R164
 
22
2
5%
R20 R150
 
27
2
5%
R6 R7
 
100
6
5%
R1 R95 R130, R132 R136 R152
 
150
1
5%
R16
 
220
5
5%
R13 R14 R15 R18 R19
 
470
1
5%
R12
 
1k
4
5%
R2 R17 R137 R161
 
1k5
1
5%
R8
 
1k8
1
5%
R179
 
2k2
19
5%
R21 R22 R23 R24 R67 R68 R69 R70 R71 R98 R104 R107 R108 R124 R125 R126 R133 R162 R178
 
4k7
2
5%
R9 R135
 
6k8
1
5%
R3
 
10k
54
5%
R10 R11 R34 R36 R47 R61 R64, R65 R94 R96 R97 R101 R105 R109, R112 R115 R116 R142 R143 R144 R145 R148 R149 R157 R158 R160
 
33k
1
5%
R159
 
47k
4
5%
R46 R119 R127 R155
 
68k
1
5%
R138
 
100k
24
5%
R25 R26 R27 R28 R35 R59 R66 R72 R73 R92 R93 R99 R102 R113 R114 R118 R122 R139 R140 R141 R153 R154 R156 R165
 
220k
8
5%
R62 R63 R103 R121 R128 R131 R235 R236
 
1m
2
5%
R91 R200
 
1m5
1
5%
R123
 
2k4
1
1%
R5
 
5k6
1
1%
R4
 
24k
1
1%
R106
 
200k
17
1%
R74 R75 R76 R77 R78 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90
 
1k
2
PTC
R100A R100B
Microohm LPTC12T21001 (from Adafruit)
2k
1
Trimpot
TM6
 
5k
1
Trimpot
TM5
 
50k
1
Trimpot
TM4
 
500k
1
Trimpot
TM3
 
50k
3
Potmeter log
VR3 VR5 VR8
Panasonic EVU-F2LFL3D54
50k
2
Potmeter lin
VR2 VR7
Panasonic EVU-F2LFL3B54
50k
1
Potmeter lin
VR4
Dual pot. Alpha RV112BCF-40-25F-B54
1m
1
Potmeter log
VR6
Alpha RV112BCF-40-25F-A16
1k
40
5%
R203 R204 R205 R208 R211 R213 R215 R217 R221 R222 R223 R227 R228 R229 R234 R237 R238 R239 R241 R242 R243 R244 R245 R246 R248 R249 R250 R251 R252 R253 R256 R258 R260 R261 R262 R264 R265 R266 R267 R268
Value vary depending on LED type and brightness
IC sockets
Type Needed
DIL-8
DIL-8
3
DIL-14
DIL-14
2
Package_0006_DIL-16
DIL-16
9
SIL-9
SIL-9
2
DIL-40
DIL-40
1
DIL-6
DIL-6
1
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