Tags » Electronics

LED-tester deluxe...

A few months ago I stumbled upon a presentation thread for an “LED-tester” circuit by Muffsy-creator H. Skrodahl on a Norwegian audio forum. Two things immediately occured to me: 266 more words

Electronics

Power Logger

With a design along the same lines as the Gas Sensor Logger, I made up a power consumption monitor for the house.
I installed 4 clamp on current transformers in my panel, one on each of the 230v legs coming in, and two that can be clamped on any circuits of interest. 336 more words

Electronics

STX-882 / SRX-882 Radio Testing

I recently did some testing of the STX-882 433HHz transmitter and the SRX-882 433MHz receiver and, after additional tests, updated my original findings.

I tested line-of-sight along a road. 875 more words

Electronics

Video on Impedance Matching 101

#ImpedanceMatching 101 presentation by Ward Silver, N0AX at Pacificon 2012.

Youtube URL:

A great introduction on methodology and techniques to achieve optimum energy transfer between a electronic circuit source and load. 25 more words

Diy

Don't you hate it when..., Issue 23

you’re frantically searching for your smartphone and remember that you’re currently talking on it? Maybe it’s because you don’t use it all that much for talking anymore.

Don't You Hate It When...

A Tiny but Good Boost Converter

With nothing connected to the CE012’s outputAs I continue to experiment with voltage boost converters I was intrigued by some Chinese DC-DC Boost Converter modules. There are several different types and module configurations, depending upon the manufacturer and chip type. 611 more words

Electronics

Bose® Wave Radio AWR1-1W Repair

From the Rain City Audio Repair Blog:

A Bose® Wave Radio, model AWR1-1W, just came through the shop for a repair. The radio had been working okay all these years but had recently stopped receiving any stations and instead was just making a low buzzing noise. 135 more words

Electronics