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 BUILD INSTRUCTIONS 

Start by building PCB-A. Start with 
diodes, resistors, ferrite beads, then 

caps, then DIP sockets, connectors, and 
finally THT transistors.  

© 2020 Weston Precision Audio

6

AD110 PCB-A Rev BB Build Table

Reference

 Quantity  Value

 Footprint / Note

C101 C107

2 4.7n Film 5%

Film “box” type. 5% Tolerance or hand select.

C102 C103

2 3.3n Film

Film “box” type

C104 C130 C122 C123

4 470p

Multilayer ceramic radial

C108 C127 C134 C106 C111

5 1n Film

Film “box” type

C110

1 4.7u

Raidal electrolytic

C113 C138

2 100u

Raidal electrolytic

C114 C119

2 10n Film 5%

Film “box” type. 5% Tolerance or hand select.

C115 C116

2 6.8n Film

Film “box” type

C117 C126

2 47n Film

Film “box” type

C118

1 33p

Multilayer ceramic radial

C120 C128 C132 C109

4 2.2n Film

Film “box” type

C125 C131 C105

3 10n

Multilayer ceramic radial

C129 C121 C124

3 1u

Raidal electrolytic

C133

1 470p

Multilayer ceramic radial

C135 C112

2 0.47u

Multilayer ceramic radial

C136 C137 C143

3 33u

Raidal electrolytic

C139 C140 C141 C142 C144 C145

6 100n

Multilayer ceramic radial

D102 D103 D106 D107 D101 D104 D105

7 1SS133M

General purpose diode

D108 D109

2 1N4001

Rectifier diode

D110

1 TZX9V1D

Zener diode

J101

1 Eurorack Power

Boxed/Keyed 10-pin connector. 

Install on back side of board.

JP111

1 A/B Interconnect 1 2.54mm Pin Socket, 6 position. 

Install front side of board.

JP112

1 A/B Interconnect 2 2.54mm Pin Socket, 6 position. 

Install front side of board.

JP115

1 A/B Interconnect 3 2.54mm Pin Socket, 12 position. 

Install front side of board.

L101 L102

2 Ferrite

Ferrite bead axial

Q107 Q110 Q102

3 BC559B

Transistor, BJT, TO-92 Inline package

Q109 Q108 Q106 Q111 Q101 Q103 Q104 Q105

8 BC549B

Transistor, BJT, TO-92 Inline package

R101 R127 R158

3 82k

1% Metal film resistor axial

R102 R113 R126 R136

4 100k 0.1%

0.1% Metal film resistor axial

R103

1 442k

1% Metal film resistor axial

R106 R155 R171 R123 R119

5 10k

1% Metal film resistor axial

R107

1 86.6k 0.1%

0.1% Metal film resistor axial

R110 R133

2 560R

1% Metal film resistor axial

R114 R128 R156 R168

4 22k

1% Metal film resistor axial

R116

1 2.2M

1% Metal film resistor axial

R117

1 127k 0.1%

0.1% Metal film resistor axial

R122

1 20k

1% Metal film resistor axial

R124 R161

2 220k

1% Metal film resistor axial

R125 R105 R108 R121 R132 R138 R151 R163 R147 R150 R165 R169 
R109 R112 R115 R129

16 100k

1% Metal film resistor axial

R130

1 107k 0.1%

0.1% Metal film resistor axial

R131 R148

2 2M

1% Metal film resistor axial

R134

1 47k

1% Metal film resistor axial

R135

1 39k

1% Metal film resistor axial

R139 R149 R162 R159 R167 R111 R142 R143

8 33k

1% Metal film resistor axial

R140

1 158k 0.1%

0.1% Metal film resistor axial

R141

1 374R

1% Metal film resistor axial

R144

1 68k

1% Metal film resistor axial

R145

1 27k

1% Metal film resistor axial

R146 R160 R104

3 200k

1% Metal film resistor axial

R152 R164 R137

3 1k

1% Metal film resistor axial

R153 R170 R120

3 5.6k

1% Metal film resistor axial

R154 R166 R118

3 220R

1% Metal film resistor axial

R157

1 470k

1% Metal film resistor axial

R172

1 330R

1% Metal film resistor axial

U102

1 CD4070

DIP 14 Socket

U104

1 TL072

DIP 8 Socket

U105 U101

2 CD4069

DIP 14 Socket

U106

1 CD4006

DIP 14 Socket

U107

1 TL074

DIP 14 Socket

U108 U103

2 CD4098

DIP 16 Socket

1

Содержание AD110

Страница 1: ...2020 Weston Precision Audio 1 AD110 Analog Drums DIY Eurorack Module Weston Precision Audio Designed In Portland Oregon Revision 11 June 25 2022...

Страница 2: ...e the range of sounds available including tone control for the decaying portion of the kick drum pitch and resonance pitch for the resonant portion of the snare drum decay of the snare wires noise par...

Страница 3: ...ly found in various analog drum machines of the time They are formed via simple CMOS inverter oscillators in U101 and U105 and are approximately 305Hz 44Hz 794Hz and 1136Hz These 4 signals are mixed t...

Страница 4: ...tip Flux core solder No clean solder for soldering pots after cleaning Phillips head screw driver Small wire clipping pliers Recommended Digital volt meter Oscilloscope Spanner tool for knurled jack...

Страница 5: ...NBMF 5ISFBEFE FY 4UBOEPGG NN POH Y Y 1BO FBE 4DSFX Y OVSMFE 4JMWFS FOUFS SFZ 4NBMM FBS MFDUSPOJDT 1 3 9 OVSMFE 4JMWFS FOUFS FMMPX 4NBMM FBS MFDUSPOJDT 1 8 9 OVSMFE 4JMWFS FOUFS MBDL 4NBMM FBS MFDUSPOJ...

Страница 6: ...1 L102 2 Ferrite Ferrite bead axial Q107 Q110 Q102 3 BC559B Transistor BJT TO 92 Inline package Q109 Q108 Q106 Q111 Q101 Q103 Q104 Q105 8 BC549B Transistor BJT TO 92 Inline package R101 R127 R158 3 82...

Страница 7: ...nterconnect 2 2 54mm Pin Header 6 Position Install on back side of board JP215 1 B A Interconnect 3 2 54mm Pin Header 12 Position Install on back side of board Q201 Q203 Q206 3 BC559B Transistor BJT T...

Страница 8: ...f PCB B fi rst release the footprint for C221 looks like a disc type but you should install the 1uF electrolytic here as shown with the negative stripe leg installed to the ground hole closest to Q206...

Страница 9: ...of board JP305 1 C B Interconnect 5 2 54mm Pin Header 12 Position Install on back side of board Q301 Q302 Q305 Q306 Q303 Q307 Q304 7 BC547C Transistor BJT TO 92 Inline package Q308 1 BC559B Transisto...

Страница 10: ...ace the LEDs into their holes and mount PCB C to the panel with just 1 pot washer and nut With the panel facing down wiggle the LEDs into their holes on the panel until you can feel them touch the tap...

Страница 11: ...ver while you listen to the output from step 1 Turn the trim pot TP201 the only trump pot until you minimize any thump sound from the accent bleeding through You may have to turn your speakers up a bi...

Страница 12: ...REF Finished Unit 2020 Weston Precision Audio 12...

Страница 13: ...REF PCB Pics Finished 2020 Weston Precision Audio 13...

Страница 14: ...3 Q103 BC549B D101 1SS133M R119 10k GNDD GNDA R105 100k C112 0 47u R118 220R 12V 1 2 3 Q102 BC559B 12V GNDD R111 33k R115 100k C104 470p V 11 V 4 U107E TL074 12 13 14 U107D TL074 10 8 9 U107C TL074 GN...

Страница 15: ...k 12V R252 18k C216 22n GNDA R211 33k GNDA GNDA GNDA R247 1k C202 1 2n Film C205 1 2n Film R256 1k V 11 V 6 U204E LM13700 V 7 8 U204D LM13700 1 DIODE_BIAS 2 3 4 5 U204C LM13700 V 10 9 U204B LM13700 R2...

Страница 16: ...D310 4148 D312 4148 GND 4 RV302B A1M Kick Decay GND 4 RV306B 10k Mix Bal 1 1 2 2 3 3 RV309A A1M Clap Flam 1 1 2 2 3 3 RV301A B1M Cym Decay 1 1 2 2 3 3 RV303A 100k Snare Decay 1 1 2 2 3 3 RV302A 100k K...

Страница 17: ...SILKSCREEN PCB A 2020 Weston Precision Audio 17...

Страница 18: ...SILKSCREEN PCB B 2020 Weston Precision Audio 18...

Страница 19: ...SILKSCREEN PCB C 2020 Weston Precision Audio 19...

Страница 20: ...f C build table 08 4 7k Rs on PCB C were listed wrong as 2k on build table BOM was correct 07 Add missing diodes to PCB B build table and note about D204 D205 06 Correct Small Bear knob PNs 05 Change...

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