This is a Article by Conrad Hoffman in “Electronics Now, April 1996”.He has an intriguing collection of electronics and Mechanical DIY Tips and Ideas in his site.
The Mini Metrology Lab – Conrad Hoffman
His “Electronic Mess” section has many pages on repairing and restoring old instruments and equipment.
An Excerpt from his pages is a Reading Pleasure due to his rich experience and enticing language.
Troubleshooting Audio Electronics
I ain’t gonna lie. You won’t be a master troubleshooter after reading a couple pages here. Hopefully, what I can do is give you the ability to form a logical plan of attack.
Troubleshooting is done mostly with the mind, not with the soldering iron. We all have problems that get the better of us, at least for a while, but approaching the situation as an interesting puzzle, rather than an unpleasant task to be suffered through, will make the work go quickly.
Success will come from a 3-prong approach, a combination of understanding the circuit, having the means to test it and being in the right frame of mind to correctly interpret the test data. Never underestimate that third component.
He also has a Design and Testing Services called Deep Run Design.
Building an electronic project or want some assistance. Submit your electronic questions at Electro tech online – Design Forum. Experienced members can help find a solution.
Electronic Projects Design/Ideas/Reviews
Electro Tech has been around for nearly a decade; has a membership of practical and seasoned enthusiasts, engineers and students. Here you may find many interesting ideas for projects and repair/fixing tips.
Renewable Energy – Discussion of Solar, Wind, Hydro and main stream renewable energy topics including RE projects.
Repairing Electronics – If you’re trying to fix an electronics device like a TV, Stereo, etc you can discuss it here.
Robotics & Mechatronics – Specific to discussions about robots and the making of.
“I am on the other side of the river … :-) More than one, are an better experience.” – Mr Analog Meter
Kieth’s Blog has many ideas on refurbishing and creating electronic gadgets, Mechanical and DIY Techniques.
Keith Neufeld – Electronics Blog
LED Calculator with Rotary Quadrature Encoder for Target System Voltage Selection, Arduino, Robotics, PCB Layout Tips, Introduction to Circuits, LED Clock.
Transistor-Based Variable Current Drive for LED Calculator
“The idea is to expand on a simple LED tester by allowing the user to plug in an LED, dial in the LED brightness, and then read information on an LCD showing the LED voltage drop, the current current, and the value of current-limiting resistor to use in a target circuit. “
wikiHow – A Collaborative How-Too Manual
wikiHow is a collaboration to build and share the world’s largest, highest quality how-to manual. Imagine if everyone on Earth had an expert coach who could teach them how to do anything.
Every month, millions of people turn to wikiHow to learn how to do something new. By contributing your knowledge to wikiHow, you will be helping people all over the world learn something new.
Category:Computers and Electronics – WikiHow
Sci.Electronics.Repair Frequently Asked Question(s) (or S.E.R FAQ for short) Home Page. This site features Samuel M. Goldwasser’s latest and greatest “Notes on the Troubleshooting and Repair of…” series of comprehensive repair guides for consumer electronics equipment and other household devices.
Technology Resource – Silicon Sam
There is also a great deal of other information of interest to the electronics hobbyist, experimenter, technician, engineer, and possibly even the dentist and poet. Included are the now quite comprehensive and massive “Sam’s Laser FAQ”.
Sam’s Laser FAQ has a great deal of information on a variety of laser and optics related topics including a comprehensive treatment of diode, helium-neon, argon/krypton ion, and CO2 lasers as well as amateur laser construction including numerous examples of truly home-built lasers. Much of this is not available anywhere else either on-line or in print!
Home-Built Diode Pumped Solid State (DPSS) Laser
This generates green light at 532 nm which is not a bad shade of green and quite close to the eye’s peak sensitivity. This is the approach used in modern green laser pointers and most modern DPSS green lasers. While other materials can be used to obtain other wavelengths (blue being the most common)
Electronics Home of PITT
Infos über Elektronik, Applikationen, Schaltungen, Vergleichslisten etc…
Hier gibt es alles zum Thema Elektronik, ob allgemeine Informationen, Tips und Tricks, Hilfen, Steckverbinderbelegungen, Tabellen, und jede Menge Schaltpläne, teilweise auch Layouts von Schaltungen und demnächst auch eine riesige Datenbank mit Röhren und Halbleiterdaten.
Information about electronics, applications, circuits, comparative lists, etc. ..
Here’s everything about electronics, whether general information, tips and tricks, aids, Steckverbinderbelegungen, tables, and lots of diagrams, partly layout of circuits and soon a huge database with tubes and semiconductors data.
PITT’ s Electronics Home -A private electronic portal.
“Strippenstrolch” is thus a pitch name for “electricians”. here you can also see a innovative project that combines rainwater harvesting and a solar energy operated pump to flush toilets.
Strippenstrolch – Elektronikbasteln
LED Lighting Projects, Learn Electronics, Basic Circuits and how they work. All in German.
“In Germany one finds this designation now and then for an electrician on the work. Particularly in the winter, if it is still dark in the morning, one often sees “Strippenstrolche” with its building lamp on the building site:”
Combination of Rain and Sun Harvesting
“The inspiration for a self-sufficient toilet flush was now close at hand: I thought at first to work with a power supply that provides me the 12V to the pump. But as a power supply would idle constantly consume energy, I rejected this solution. I have long experimented with solar power, so I decided, now a solar system for our toilets to build. On the flat roof of our garage I installed two 12V – 55Wp – solar – modules (Conrad Electronics). This I switched in parallel.”
“As a solar storage currently serves an ordinary car battery 45Ah (later 3 pieces with a total of 135 Ah). The charging control acquires an 8A charge controller (Conrad). So all very simple.”