Updates of PDF manuals

In these days I updated PDF manuals. The benefit of the PDF documents is the vector based schematic and PCB design for unlimited magnification, and the project is not separated to articles, there are all in one documents. Here are the updated documents:

• TDA7293 modular project: modified the wrong parallel schematic and PCB module, and inserted offer to make amplifier up to 800W with more than one parallel modules. Two new PWM fan controller and speaker protection design included.
• Headphone amplifier with TPA6120: Two schematic for the simplest and full featured solutions, but four PCB designs available.
  

My next "project" is to finish PDF manual for my parametric EQ.
Download manuals from the right side.

Using autorouter for homemade PCB

I made a movie about the autorouter of my favorite electronic CAD software:



When I finished the schematic, I switching to PCB creation and using autorouter. Most of Altium users don't like autorouter, but I think after correct configuration will be really useful for large boards. The most important is the correct strategy and rule settings. Because I made PCB by myself, I need wider lines and high clearance which is the distance between lines on PCB. Finaly I made very high quality photo film of PCB image, and finalized the job with photo resist method.

Here is the movie how to finalize the PCB creation, and a picture gallery about the very good printed circuit board:



My previous movie about the PCB creation :)

The image gallery of the result: