Author: David Herres
-
Back to basics… revisiting Ohm’s Law
Electricians need to keep up-to-date with Ohm’s Law and several other mathematical theories in order to complete their day-to-day tasks. David Herres offers this refresher course. -
Growing your business through appliance repair
Appliance repair used to be the exclusive domain of electricians, but as whitegoods became cheaper this type of work went out of style. But, David Herres ... -
On the tools: Oscilloscopes
Oscilloscopes may be a bit harder to master than your standard multimeter, but the results are well worth the trouble. David Herres explains. -
A guide to multimeters
Electricians use multimeters for many everyday tasks and would certainly not want to be without one. But there is another instrument that is finding increased application ... -
Understanding diodes in appliances
Success in fixing appliances and other electronics will enhance your reputation as a skilled technician, and in the long term offer significant billable hours. David Herres ... -
Chasing the perfect wave
Oscilloscopes may be a bit harder to master than your standard multimeter, but the results are well worth the trouble. David Herres explains. -
Big trouble in little diode
Success in fixing appliances and other electronics will enhance your reputation as a skilled technician, and in the long term offer significant billable hours. David Herres ... -
The different types of sparky
New methods and materials, plus the full-scale arrival of the ‘cyber age’, have resulted in rapid changes to the electrical industry, and there is every indication ... -
Understanding characteristic impedance
Cabling technicians, in contrast to power and light electricians, have occasion to work with somewhat more specialised materials. And the underlying theoretical basis also differs, writes ... -
Tackling wind turbine noise complaints
Wind and solar are two major players in the renewable energy market – and both technologies could bode well for electricians. David Herres explains the world ...
