David Jones -Tronnort Technology
2021-10-01
PCB Design Tutorial – As published in Silicon Chip magazine Oct-Dec 2003. A very comprehensive three part tutorial on how to professionally design and lay out PCBs. Learn all theRead More
Dial AVO Amps-Volts-Ohms meter
2020-07-16
This was designed, keeping in mind, that sometimes we have few components available and we could be flat broke. Even that you could not carry your DMM somewhere, but youRead More
Function Generator using the CA3140
2019-08-08
Here is a complete project which will help in learning to apply the CA3140 in a small instrument that could be used in your test bench along with the oscilloscope. ItRead More
FreePCB – PCB editor
2019-06-17
FreePCB is a free, open-source PCB editor, released under the GNU General Public License. It was designed to be easy to learn and easy to use, yet capable of professional-qualityRead More
Microohm Meter with LED Analog Bar
2019-01-10
This indicates like LM3914 in dot-mode. It is a drawing i made made to troubleshoot a gadget, around two decades ago. Strangely it had a echo of a design iRead More
Transistor Beta and Vce Tester
2018-11-16
This was a Beta Hfe and Vce Measuring Instrument used in Incoming Inspection of Power Transistors made by me 16 years back. Custom Built Test Instruments I designed and builtRead More
Test Measurement and Test jigs
2017-05-03
Test Tools are needed for Troubleshooting and Repairing Electronic Gadgets, Equipment, Electrical Panels and Machines. Precision Instruments are required for calibration of field and machine control electronics. These are alsoRead More
Zelscope Sound card oscilloscope
2017-04-12
Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer’s sound card as analog-to-digital converter, presenting a real-time waveformRead More