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Rates of Advertising Types, Sponsorship and Promotions in the delabs-dapj Websites, Services and Blogs. Modified Date - 27 Apr 2026
Vintage Doorbell
Doorbell or Calling Bell
This is an example of Electromagnetism. Even Electromagnetic Relays and Power Contacters work on the same principle. Relays and Contacters.
Trillium
Trillium erectum is a perennial, herbaceous, flowering plant that persists by means of an underground rhizome.
Electric VLSI Design System EDA
Custom IC layout, Schematic Capture, Languages such as VHDL and Verilog. An Open-source Electronic Design Automation, EDA. Electric VLSI uses connectivity for all design, even Integrated Circuit layout. This means that you place components (MOS transistors, contacts, etc.) and draw wires (metal-2, polysilicon, etc.) to connect them. The screen shows the true geometry, but it knows the connectivity too.
ULN2003A - Darlington Transistor Drivers Arrays
These are high-voltage, high-current Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads.
Electronics Index of Calvert
Many may already know about these EE Educational pages with Circuits of J. B. Calvert. These pages are valuable as they are like a summation of Important and Practical Sections in many EE Subjects. If you want to master the basics of EE, these pages will propel you in the right direction.
A Wealth of Information is at the site - Dr James B. Calvert Associate Professor Emeritus of Engineering, University of Denver and Registered Professional Engineer, State of Colorado. An EE-Encyclopedia Almost..
Interactive Power Electronics Seminar
The interactive and animated applets are part of the Introductory Course on Power Electronics taught by Prof. Kolar at the ETH Zurich.
Interactive Power Electronics Seminar Power Electronics Circuit Simulation Applets to See - are the simple Buck-converter and the Rotating Three-Dimensional Field More pages of Compulsory Reading for Students
Handbook of Operational Amplifier Applications
These old publications, from 1966 and 1963, respectively, are some of the finest works on op amp theory that I have ever seen. Nevertheless, they contain some material that is hopelessly outdated.
This includes everything from the state of the art of amplifier technology, to the parts referenced in the document - even to the symbol used for the op amp itself:
Reading Glasses at 60
I am now nearly 60 years old, using Reading Glasses of 1.5 power. Fonts setting 110% to reduce eyestrain.
2025-09-28
Text Size reset to 100% and Display Scaling to 125% with HDMI Interface. 1920*1080 Resolution. Now things are better.
About
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About Tech Media Network - This very page will have updated information on delabs and dapj. Blog will contain updates and other posts.
Designing Mixed Analog Chips and Circuits
These are some updates on Analog and Mixed Design pages online. A/D Converters are important because the world is full of mainly analog signals and parameters. Processing, Filtering, Analyzing and Computing data is best done by software (firmware).
These days the term of firmware can only be used for very small devices. This is because we have more memory, flash and computation ability in tiny footprints. So even a mini gadget can have a Tiny OS sometimes even a Virtual Machine. What is a VM it is is a OS in a OS. Java, .Net.
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