Abra AK-10, User Manual

1

Index

I. Parts list  ...........................................................................1

II. Specifications

 ................................................................2

III. Tools Required

 ............................................................2

IV. Assembly Instructions

 ..........................................3-4

V. Schematic diagram 

 .....................................................4

VI. Theory of operation 

 ..........................................5-12 

I

.

 AC signal

 ................................................................. 5-7

II.  Transformers

 ...................................................... 8-9

III.  Rectifiers

 ...............................................................10

IV.  Capacitors

 .............................................................11

V. Voltage Regulator

 .................................................11

VI. Soldering

 ................................................................12

VII. Troblueshooting/FAQs

 ................................. 12-13

VIII. About Us 

 .................................................................. 14

Designed by: Thushanth Sithambararajan 

Rev 1.0.1

Parts list

☐

(2x) 220µF Capacitor (C2 & C3)

☐

2200µF Capacitor (C1)

☐

DPDT Switch On-On 

☐

(2x) 2 pin Terminal Block (AC & DC)

☐

T0-220 heat sink Clip-on (HS-220C) 

☐

Line Cord 

☐

36V step down transformer (TRF-170)

☐

LM317T

☐

5000Ω ½ watt PC mount Resistor 

☐

2200Ω ¼ watt Resistor (R1)

☐

1300Ω ½ watt Resistor (R3)

☐

330Ω ¼ watt Resistor (R2)

☐

Green Diffused LED (L)

☐

(6x) 1N4004 (D1 – D6)

☐

ABRA Custom PCB Board

optional 

* standoff

* project box