If you are a student or hobbyist, there are many pages of ideas and information on my sites, that may help you. Start at Soldermans Basics. The question and answer threads, from my correspondence, are recorded in Circuits FAQ.
These pages will interest hobbyists, technicians, engineers and The Ham Radio Community.
You can refer to the delabs design devices which is a product and circuit design resource.
dapj Tech - Digital Analog Power Junction
dapj Gadgets - Tutorial Electronic Web Gadgets
DACT Elektrotech Laboratories - The Smoke and Smoulder.
Dact Apps - WebApps for an Engineer or Hobbyist
I was an R&D Engineer in the Test and Measurement area in the 80s and 90s. Read more about that in at my other websites.
Measurement and Data Acquisition, helps engineering a Robust design.
Let us Make things that last 12 Years, that is Green.
The VU meter was added because i used to build/fix Hi-Fi Audio Amps, this was during my school days. Then it has been around Instrumentation. Now it is the Web and Computers that take most of my time.
Anwheel Methods - Mechanical, Robotics, Mechatronics Manufacturing Technologies and Engineering Materials.
SANGear Adroit Computing - Engineering the Computing Device, Data and Delivery. Software, Programmer, Computers.
Web Computing - SANGear The HandHeld Cloud Computer
delabs and dapj Tech News
delabs Ingineering - Electronics Technology and Product Engineering. A part of delabs Technologies