ELM – Electronic Lives Mfg
“My hobby has been a present occupation as it is because I liked electronics relatings since I was little. Railroad, anime, comic and TV game as well. As for programming in the hobby, because...
Category: Schematics
555 multivibrator like power oscillator
This is dual 555 multivibrator like power oscillator. This is my contraption and conception but couple of decades old. It appears to have errors. It worked but the document fixing after design worked, not...
FreePCB – PCB editor
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-quality work. FreePCB – PCB...
Convert Analog to Digital with a V-F
A Low cost A/D with a Potential of 5KV Isolation from Computing elements by use of Normal/Special Opto-Couplers. This can give better resolution and accuracy than a 8 bit A/D. may be close to...
Antenna-amplifier with BFT 12 for FM-range
The only way to improve the reception of FM-signals or particularly of stereo FM-signals under disadvantageous receiving conditions is to amplify the antenna signal. This should be made directly at the antenna, since the...
Design Notes – Schematic and PCB – 04
PCB Thermal Design Care for Analog Circuit Stability – If you have a hot power chip near a DC analog circuit, the values will drift, take time to stabilize, this happens even if you...
Make a Shake LED Flashlight
I was enlightened about this Battery Less wonder. This is a boon for rural areas and an emergency tool which depend only on your will and your tendons. I found this bright flash of...
The Radio Electronics Magazine
Radio-Electronics was an American electronics magazine that was published under various titles from 1929 to 2003.You can Read them all here . Recently i found a collection of those mags at Archive.org ….. Radio...
