Elekit 6L6GC - User Manual

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6L6GC Single Stereo Tube Power Amp

TU-

879S Assembly Instruction Manual

Features:

This is a single stereo power amplifier using the powerful 6L6GC.

Assembly is easy. Anyone can follow the printed circuit board and

obtain the same result. For this reason, you do not need to know the

details of wiring and other technical details to assemb

tube amplifier kit.

This amplifier is compact and powerful enough to surpass the capacity

of output transformers in other models under the same class of our

company (TU-

877, 874, etc.). This amplifier includes premium

capacitors which enhance sound quality.

This amplifier uses improved MOS FET regulated ripple filtering

driver tube heater is powered from a DC supply with a 2mm thick

shielded panel added to effectively reduce hum noise to

Additionally, a number of other compo

nents have also been upgraded.





 Content

Cautions …………………………………………….…… 1

Necessary Tools …………………………………….. 1

1. Parts list ……………………………………………… 2

2. Circuit Board Assembly ………………………. 3

CAUTIONS

========================

♦ Do not work near any source of water

or allow any components to get wet which may cause fire and electric shock.

♦

Do not put containers with water on the work table such as vases,

fire and electric shock.

♦

Keep out of reach of small children during assembly, usage and storage. Please discard packing waste and any waste from assem

kit according to social sta

ndard for safety and protection of the environment.

•

Read the “Assembly Instruction Manual” carefully and be sure to fully understand them before assembling.

•

Be careful when handling tools; diagonal cutters, pen knives, and other sharp tools in particular.

•

Do not work near young children due to safety concerns. Children must not play with tools, plastic bags and electronic parts

cause harm.

•

Some essential pieces in this kit include small and sharp objects that are made of glass or metal. Be extre

child has swallowed any of these items, immediately consult a medical doctor.

•

This product and its components may differ without notice.



Please keep this instruction manual handy at all times.

NECESSARY TOOLS

It is handy but not necessary

For your own safety, please read the “Assembly Instruction Manual”

carefully before you begin assembling the Power Amplifier Kit.

Please follow the instructions step by

Soldering Iron (15

30W)

Solder (

0.8-1.0mm)

Nut Driver (5.5mm)

Hexagonal Wrench

(1.5mm-2.5mm)

TubeDepot.com

info@tubedepot.com

1686 Barcrest Drive, Memphis, TN 38134

6L6GC Single Stereo Tube Power Amp

879S Assembly Instruction Manual

This is a single stereo power amplifier using the powerful 6L6GC.

Assembly is easy. Anyone can follow the printed circuit board and

obtain the same result. For this reason, you do not need to know the

details of wiring and other technical details to assemb

le this vacuum

This amplifier is compact and powerful enough to surpass the capacity

of output transformers in other models under the same class of our

877, 874, etc.). This amplifier includes premium

This amplifier uses improved MOS FET regulated ripple filtering

. The

driver tube heater is powered from a DC supply with a 2mm thick

shielded panel added to effectively reduce hum noise to

a minimum.

nents have also been upgraded.

3. Wire harn

ess, chassis assembly and usage

4. Technical Data …………………………………

…

5. Vacuum Tube …………………………………

…

6. Warranty ………………………………………

…

or allow any components to get wet which may cause fire and electric shock.

Do not put containers with water on the work table such as vases,

cups, cosmetics, and drugs. Spilling water on components will cause

Keep out of reach of small children during assembly, usage and storage. Please discard packing waste and any waste from assem

ndard for safety and protection of the environment.

Read the “Assembly Instruction Manual” carefully and be sure to fully understand them before assembling.

Be careful when handling tools; diagonal cutters, pen knives, and other sharp tools in particular.

Do not work near young children due to safety concerns. Children must not play with tools, plastic bags and electronic parts

Some essential pieces in this kit include small and sharp objects that are made of glass or metal. Be extre

mely careful. If by any chance a

child has swallowed any of these items, immediately consult a medical doctor.

This product and its components may differ without notice.

Please keep this instruction manual handy at all times.

Pen Knife

For your own safety, please read the “Assembly Instruction Manual”

carefully before you begin assembling the Power Amplifier Kit.

Please follow the instructions step by

step for correct assembly.

Solder Stand

Diagonal Cutter

Long Nose Pliers

Scissors

Oil based marker

(fine point)

1686 Barcrest Drive, Memphis, TN 38134

ess, chassis assembly and usage

………. 8

…

………………. 18

…

……………… 19

…

……………….. 20

or allow any components to get wet which may cause fire and electric shock.

cups, cosmetics, and drugs. Spilling water on components will cause

Keep out of reach of small children during assembly, usage and storage. Please discard packing waste and any waste from assem

bling the

Read the “Assembly Instruction Manual” carefully and be sure to fully understand them before assembling.

Do not work near young children due to safety concerns. Children must not play with tools, plastic bags and electronic parts

as they may

mely careful. If by any chance a

Long Nose Pliers

⊕

Screw Driver

(No. 1 and No.2)

Oil based marker

Optional-voltage and

connection check is suggested

Multimeter

www.cnamusic.com

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Do you have a question about the Elekit 6L6GC and is the answer not in the manual?

Overview

ELEKIT 6L6GC Single Stereo Tube Power Amplifier TU-879S

ELEKIT 6L6GC Single Stereo Tube Power Amplifier TU-879S

The ELEKIT TU-879S is a single stereo tube power amplifier kit designed for easy assembly and high-quality audio performance. It utilizes the powerful 6L6GC vacuum tube, making it suitable for enthusiasts who want to build their own amplifier without needing extensive technical knowledge of wiring or complex circuitry. The kit's design emphasizes straightforward construction, allowing users to achieve consistent results by following the provided instructions.

Function Description: The TU-879S functions as a stereo power amplifier, taking a low-level audio signal and amplifying it to drive loudspeakers. Its core amplification stage is built around the 6L6GC vacuum tube, known for its robust performance and characteristic tube sound. The amplifier is designed to deliver a clear and powerful audio output, enhancing the listening experience for various audio sources. The stereo configuration ensures a balanced and immersive soundstage.

Important Technical Specifications: While specific numerical technical specifications like output power, frequency response, or signal-to-noise ratio are not explicitly detailed in the provided excerpt, several design choices point to its performance characteristics:

Tube Type: Employs the 6L6GC vacuum tube, a popular choice for its power and sonic characteristics in audio amplification.
Amplifier Type: Single stereo power amplifier.
Capacitors: Includes "premium capacitors" to enhance sound quality, suggesting a focus on high-fidelity audio reproduction.
Ripple Filtering: Features "improved MOS FET regulated ripple filtering." This technology is crucial for providing a stable and clean power supply to the amplifier circuits, which directly contributes to lower noise and better sound clarity.
Hum Noise Reduction: Incorporates a "2mm thick shielded panel" for the driver tube heater, which is powered from a DC supply. This design choice is specifically aimed at effectively reducing hum noise, a common issue in tube amplifiers, thereby improving the overall signal-to-noise ratio and listening experience.
Compact Design: Described as "compact and powerful enough to surpass the capacity of output transformers in other models under the same class of our company (TU-877, 874, etc.)." This implies a high power-to-size ratio, making it suitable for various setups without occupying excessive space.
Components: Mentions that "a number of other components have also been upgraded," indicating a continuous effort to improve the quality and performance of the kit over time.

Usage Features:

Ease of Assembly: A primary feature is its "easy assembly." The manual emphasizes that "anyone can follow the printed circuit board and obtain the same result," eliminating the need for detailed knowledge of wiring or complex technical details. This makes it an accessible project for hobbyists and beginners in electronics.
Instruction Manual: A comprehensive "Assembly Instruction Manual" is provided, which must be read carefully and followed step-by-step for correct assembly. This structured approach simplifies the building process.
Component Identification: The manual includes detailed instructions for installing various components such as diodes, resistors, jumper wires, bridge rectifiers, fuse holders, ceramic capacitors, and base pins. Each step is accompanied by clear diagrams and specific instructions (e.g., "Marked on PCB," "How to install").
Direction-Specific Components: Highlights the importance of correct orientation for direction-specific components like diodes and bridge rectifiers, with warnings about potential dangers if not installed properly.
Heat Dissipation: For metal oxide film resistors, instructions specify installing them "2-3mm above the PCB to diffuse heat," indicating attention to thermal management for component longevity.
Jumper Wire Construction: Provides detailed steps for creating jumper wires, including cutting tin-coated wire, inserting it into plastic tubing, and bending it to the specified shape and length (35mm total length).
Fuse Protection: Includes fuse holders for FUSE1 (0.3A) and FUSE2 (2A), ensuring protection against overcurrents. Instructions detail how to install and reinstall the fuses.
Solder Side Installation: Clearly differentiates between components installed from the solder side (copper foil side) and those from the white printing side, with specific instructions for each. For base pins, it notes that they are installed from the solder side regardless of which side they are inserted from.
Pre-application of Solder: For fuse holders, it instructs to "pre-apply a thick layer of solder plate on the oval shaped copper foil," suggesting a technique to ensure a robust connection.
PCB Preparation: Before soldering, users are instructed to break the circuit boards (TU-879R A-E) into individual pieces along grooved lines, using the edge of a table.
Checklist System: The manual implies a checklist system ("Check off the box after you have soldered each component") to help users track their progress and ensure all steps are completed.

Maintenance Features:

Component Replacement: As a kit, individual components can potentially be replaced if they fail, though specific instructions for this are not detailed in the excerpt. The modular nature of a PCB-based design generally facilitates component-level repair.
Vacuum Tube Replacement: While not explicitly stated, vacuum tubes (like the 6L6GC) are consumable components with a finite lifespan. The design of tube amplifiers typically allows for relatively easy replacement of tubes when they wear out, which is a common maintenance task for tube amplifier owners.
Troubleshooting: The "Assembly Instruction Manual" serves as a primary resource for troubleshooting during assembly. The emphasis on step-by-step instructions and warnings helps prevent common errors.
Safety Guidelines: The manual includes a dedicated "CAUTIONS" section, outlining critical safety measures:
- Avoid working near water or getting components wet to prevent fire and electric shock.
- Do not place containers with liquids (vases, cups, cosmetics, drugs) on the work table.
- Keep out of reach of small children during assembly, usage, and storage.
- Properly discard packing waste.
- Read and fully understand the manual before assembly.
- Exercise caution when handling sharp tools (diagonal cutters, pen knives, etc.).
- Prevent children from playing with tools, plastic bags, and electronic parts.
- Be extremely careful with small, sharp objects made of glass or metal; consult a medical doctor if swallowed.
- Note that the product and its components may differ without notice.
- Keep the instruction manual handy at all times.

Necessary Tools: The manual lists a comprehensive set of necessary tools for assembly, indicating the practical requirements for building the kit:

Soldering Iron (15-30W)
Solder (Ø0.8-1.0mm)
Solder Stand
Pen Knife
Diagonal Cutter
Long Nose Pliers
Screw Driver (No. 1 and No.2)
Scissors
Oil based marker (fine point)
Multimeter (optional, but suggested for voltage and connection checks)
Nut Driver (5.5mm)
Hexagonal Wrench (1.5mm-2.5mm) - noted as "handy but not necessary"

Overall, the ELEKIT TU-879S is presented as an accessible, high-quality stereo tube power amplifier kit, designed for ease of assembly while delivering robust audio performance through careful component selection and design.

Elekit 6L6GC Specifications

General

Brand	Elekit
Model	6L6GC
Category	Amplifier
Language	English

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