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Home > Projects>Yocto> HandClap

HandClap:

Asembly the handclap is more difficult than others. Because of component density we could not clearly marked on the circuit the name of each component. We really recommend you bring Eagle to confirm the location of a component for which you are unsure. To learn how to go to the YOCTO project page. It is explained. List of components:

Image

Description

Part

Value

Qty

Polyester capacitor (1n8J)

C127

1.8n

1

Polyester capacitor (2A472J)

C128, C129, C152

4.7n

3

Polyester capacitor (2A473J)

C130, C138

47n

2

Polyester capacitor (2A103J)

C131, C151

10n

2

Polyester capacitor (2A102J)

C132, C133, C141, C150

1n

4

Polyester capacitor (2A333J)

C134, C137

33n

2

Polyester capacitor (104J)

C135

100n

1

Polyester capacitor (2A223J)

C136

22n

1

Polyester capacitor (2A183J)

C139, C146

18n

2

Polyester capacitor (2A273J)

C140

27n

1

Polyester capacitor (221)

C142, C149

220p

2

Electrolytic capacitor

C143

1/50

1

Electrolytic capacitor

C144

0.47/50

1

Electrolytic capacitor

C145

33/25

1

Diode

D65, D66, D67, D68, D69, D70, D71

1N4148

7

NPN Silicon Transistor

Q28, Q67, Q68, Q69, Q70, Q73

2SC945

6

PNP Silicon Transistor

Q29, Q65, Q66, Q71, Q72

2SA733

5

1/4w carbon resistor

R103, R361, R347

22K

3

1/4w carbon resistor

R104, R337, R359, R363, R374, R106, R333, R200'

10K

8

1/4w carbon resistor

R105, R351, R352, R353

4K7

4

1/4w carbon resistor

R296, R381, R382

1K

3

1/4w carbon resistor

R332, R360

27K

2

1/4w carbon resistor

R343, R377, R378

100K

3

1/4w carbon resistor

R335

6K8

1

1/4w carbon resistor

R336, R348, R349, R356, R350

1M

5

1/4w carbon resistor

R338, R366, R371, R342

15K

4

1/4w carbon resistor

R339

3K3

1

1/4w carbon resistor

R340, R357, R358

68K

3

1/4w carbon resistor

R341, R368, R375

470K

3

1/4w carbon resistor

R344

220K

1

1/4w carbon resistor

R345, R334

150K

2

1/4w carbon resistor

R346

680

1

1/4w carbon resistor

R354

5K6

1

1/4w carbon resistor

R355

2K7

1

1/4w carbon resistor

R362

330K

1

1/4w carbon resistor

R364

2K2

1

1/4w carbon resistor

R365, R383

82K

2

1/4w carbon resistor

R367, R369

330

2

1/4w carbon resistor

R370, R373, R376

47K

3

1/4w carbon resistor

R372

39K

1

4PDT switch

SW12

4PDT switch

1

Trim Potentiometer (P103)

TM3

10K(B)

1

Voltage controlled Operational Amplifier

U22

BA6110

1

Quad Comparator

U23

AN6912

1

Potentiometer (A104)

VR17

100K(A)

1

 

Make it:


Here's the part about the Handclap. You see that there are more components than in the previous section, this is why you must be careful that you do. Remember to look at the Eagle location of a component you are not sure.

Solder all resistors.

Solder each value one after the other.

Then solder the trimmer TM3.

Install the 1N4148 diodes. Here in the red boxes.

MAKE SURE DIODES ARE IN THE RIGHT WAY

Solder polyesters capacitors



Solder electrolytics capacitors

MAKE SURE ELECTROLYTICS CAPACITORS ARE IN THE RIGHT WAY

 

Solder transistors.Do not get confused between 2SA733 and 2SC945  it is not the same transistors.

 

MAKE SURE TRANSISTORS ARE IN THE RIGHT WAY

 

Connect the power transformer. Test  BA6110 and AN6912 power supply. The green dot is-15V, the red dot is +15 V (plus or minus 5%). You have the ground on the potentiometer big square pad . Always check that the four wires from the power supply is well connected.

 

THEN DONT FORGET TO DISCONNECT THE POWER TRANSFORMER. DO NOT SOLDER COMPONENT AS THE CIRCUIT IS POWERED !

Solder both  ICs.To insert AN6912 it into the PCB you have to bend the leads a little.

MAKE SURE BA6110 ARE IN THE RIGHT WAY

Finally return the PCB and solder the potentiometer and the switch on the  opposite side of components.

Be careful to flatten the switch to the PCB before soldering all its leads.

You can then go to Cowbell assembly