100+100W Dual Ch. Amplifier.

Hello Friends, In this post I make a stereo amplifier using a pair of 2SC5200 & 2SA1943 Transistors. which can deliver up to 80W output per channel at 4Ω ±45V. For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to PCBWay for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hours. And they distribute, worldwide. The more you order, the less price you have to pay.

You just need to upload the Gerber File, and select the quantity, color, silkscreen, thickness etc. Then select your country, and shipping method and then Pay. PCBWay will deliver your PCB within 7-10 days.

PCBWay 11th Anniversary

PCBWay is indeed celebrating its 11th anniversary in 2025, marking over a decade of providing PCB manufacturing and related services. This milestone is a significant event for the company and its community of customers.

Here's a breakdown of what the 11th anniversary entails:

Key Themes and Commitments:

Innovation and Progress: PCBWay highlights its continuous efforts in growth, innovation, and pushing the boundaries of what's possible in PCB manufacturing and prototyping.

Sustainability: They emphasize a commitment to a greener future by partnering with ISO 14001-certified suppliers, using eco-friendly materials (REACH, RoHS, Halogen-free compliant), streamlining production to reduce waste, and fully adopting DHL's GoGreen transportation service in 2025.

Global Connectivity and Community: The anniversary celebrates building connections and strengthening their presence in the global tech community through participation in international exhibitions like Embedded World 2025, OpenSauce, Electronica, and PCB WEST.

Quality, Reliability, and Partnership: They acknowledge their customers' trust and support as the foundation of their legacy.

Anniversary Promotions and Activities (Ongoing and Recent):

Exclusive Coupons: PCBWay is offering a range of coupons for various order values across all product categories (PCBs, CNC, 3D printing, etc.). These typically have a validity of 60 days once claimed. Examples include:

$5 off for orders of $30 or more

$10 off for orders of $59 or more

Up to $200 off for orders of $2999 or more

Specific coupons for CNC and 3D printing services (e.g., $5 off for $29, $20 off for $199).

Up to 50% off for 3D Printing & CNC Machining: Significant discounts are available for rapid prototyping and production services in these areas.

"Unlock 6 Special Cards to Light Up The Number '11'" Game: This interactive event runs until July 18th, 2025. Users can unlock cards by completing various actions like reading a letter, getting coupons, watching a promotional video, placing an order, ordering badges or discounted items, and uploading a project. Unlocking all 6 cards grants an extra chance in a lucky draw.

Lucky Draw/Prize Pool: Users can win "beans" (PCBWay's virtual currency) or prizes from their Module Store (e.g., sensors, Raspberry Pi boards) by participating in the lucky draw.

Project Sponsorship: PCBWay continues to offer sponsorships for innovative projects, sometimes up to $20, to help creators realize their ideas.

11th Anniversary Badge Design Contest: This contest, which had a submission deadline of April 30, 2025, invited designers to create a badge incorporating "PCBWay" and the number "11." Winners were announced around June 12-15, 2025, with prizes including cash and PCBWay coupons. Several community members have already shared their badge designs, highlighting the creativity and functionality. Proceeds from the sale of anniversary badges sometimes go to charity.

How to Participate: Customers can typically find details and participate in these anniversary activities directly on the PCBWay website, often through a dedicated anniversary landing page or their "News" and "Activity" sections.

The 11th anniversary is a celebration of PCBWay's journey, its commitment to the electronics community, and its continued focus on providing quality services and fostering innovation.

After one week I received my PCB. You can see the PCB quality, it's awesome. I ordered Red PCB. But you can choose your PCB color. PCBWay provides 9 color solder masks - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black, and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. The maximum Layer is up to 14 Layers. If you order PCB for the first time at PCBWay, you get a $5 discount coupon. So upload your Gerber today and get the best quality PCB.

Gerber File:- Gerber

PCB Layout & Schematic:- PDF

License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.

Testing Method After Complete This Amplifier

Series light test:- After complete this board don't forget to series light test. When you will on this amplifier via series light, it glow for some time (1 - 2 sec). Then series light will turned off fully. If the series light will fully turned off, then check the voltages.

Check Voltages:- Bias volt 0.5V to 0.7V. Check Speaker Output and Audio Input voltage. Here you get no voltages 0.00V. If you get same voltages, then connect preamplifier to input and connect speaker to output.

Power Supply:- Recommended transformer 30-0-30V 5A.