ANK L4 Manuals

Manuals and User Guides for ANK L4. We have 1 ANK L4 manual available for free PDF download: Construction Manual

ANK L4 Construction Manual

ANK L4 Construction Manual (75 pages)

Headphone Amplifier C-Core

Brand: ANK | Category: Amplifier | Size: 4 MB

Table of Contents

Table of Contents
2
Section 1 - Introduction
5
About Ankits
6
Evolution of the L4 Headphone Amplifier C-Core
7
Basic Operation of the Amplifier
8
Power Supply
9
The ECF80/EL84 Line and Output Amplification Stages
9
Output Transformers
9
Equipment
10
Overview of the Kit
10
Tips and Suggestions
10
Soldering
10
Components
11
Resistor Sizes
11
Capacitor Voltage Ratings
11
Electrolytic Capacitors
11
Diodes
12
Hardware/Mechanical
12
Wire Stripping and Tinning
12
Wire Color
13
Optional Finishing Touches
13
Build Process
14
Some Good Rules of Thumb for Building Your Headphone Amplifier
14
Organization of this Manual
14
Electrical Safety Warning
16
Section 2 - Feet, IEC And, Rocker Switch Installation
17
Overview
17
Feet Installation
18
IEC and Rocker Switch Installation
19
Preparing and Installing the Mains Ground Wire
20
IEC PCB Wiring
21
Section 3 - Mains Transformer and IEC PCB Installation
24
Mains Transformer Installation
25
Connecting and Mounting the IEC PCB
27
Preparing the Mains Secondary Wires
30
Section 4 - Choke Installation
31
Choke Installation
31
Section 5 -Power Supply PCB Installation
32
Overview
32
Parts List
33
Building the Power Supply PCB
33
Mounting the Power Supply PCB
35
Power Supply PCB Interwiring
36
Section 6 - ECF80/EL84 PCB Installation
38
Overview
38
Building the ECF80/EL84 PCB
39
Tube Socket Installation
40
Resistor Installation
41
Capacitor and Diode Installation
43
Section 7 - RCA Jacks Installation
46
Mounting the RCA Jacks
46
Section 8 -Attenuator Installation and RCA Jacks Wiring
47
Attenuator Installation
47
Preparing the AN-A Cable
47
Wiring the Attenuators
50
Mounting the Attenuators
53
Wiring the RCA Jacks
53
Section 9 - Headphone Jacks Installation
55
Mounting the Headphone Jacks
55
Wiring the Headphone Jacks
55
Section 10 - Output Transformers Installation
57
Output Transformers Installation
57
Section 11 - Interwiring
58
ECF80/EL84 PCB Interwiring
58
Mounting the ECF80/EL84 PCB
58
Left/Right Channel Orientation
58
Power Supply PCB and Mains to ECF80/EL84 PCB Interwiring
59
Output Transformers to ECF80/EL84 PCB Interwiring
60
Attenuator Interwiring
63
LED Installation and Wiring
64
Interwiring Chart
65
Section 12 - Testing
67
Power on and Voltage Checks
68
Mains Fuse
68
Supply Voltages
69
Install the Tubes
69
Rectifier Tubes Voltages
69
Output Tubes Cathode Voltages
70
Section 13 - Finishing Touches
71
Final Assembly
71
Gold Knob Installation
71
System Configuration Options
71
Section 14 - Final Thoughts
72
Congratulations
72
Cables
72
Tube Rolling
72
ECF80 and EL84
72
Gz34
72
Headphones
73
Thanks
73
Appendix
74
Resistor Color Code Reference
75

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