Hobby Projects - Insulation tester, LED Circuits, Meters.
Showing posts with label Repair-Maintenance. Show all posts
Showing posts with label Repair-Maintenance. Show all posts

Friday, January 08, 2016

Sci.Electronics.Repair FAQ

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

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)

Wednesday, November 20, 2013

The Mini Metrology Lab - Conrad Hoffman

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

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.

Wednesday, August 22, 2012

Electro tech online – Design Forum

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.


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.

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 bots



Monday, September 01, 2008

Complete Microwave Oven Troubleshooting

Complete Microwave Oven Troubleshooting

"Here is the ultimate microwave oven troubleshooting and repair resource with do-it-yourself help and instruction by the experts. If you are an appliance technician, perhaps you've found that microwave ovens develop very unique problems which are often quite perplexing ........" Microwave FAQ or/and Q&A.

Troubleshooting (For Qualified Technicians Only)

How To Test the Interlock Switches, Output Power (wattage), Magnetron too.