Search This Blog

Sunday, August 25, 2019

Fixing stuff

One of the members of our church purchased a small "All-in-one" stereo system at the annual church garage sale.

Cute Makita Drill

We were going through my late father-in-law's stuff recently, and came across a cordless Makita drill.

Saturday, August 24, 2019

A couple of little hikes

My daughter and I went on a couple of hikes recently, and saw some things we hadn't seen before.  I'm sharing it here because it's cool and interesting.

Wednesday, August 14, 2019

Nuclear-Powered Rocket Engines

In the previous post, I conjectured that a nuclear-powered rocket motor test had gone sideways near the city of Severodvinsk in Russia.  It turned out that I was correct in most of the guesswork.

Saturday, August 10, 2019

Russian missile test and radiation spike - 3rd Update

There have been a few news articles lately about a missile testing accident in northern Russia.  This accident allegedly caused a brief spike in radiation levels in the nearby city of Severodvinsk.

Wednesday, August 07, 2019

Why do some LED bulbs create radio frequency noise?

A while back, I tried to replace the incandescent bulbs in our garage door openers with LED bulbs. 

I started my next shift and promptly forgot that I'd switched them out - however, the garage doors stopped working with the remote.  My wife was the one who put 2+2 together, and realized that this loss of function was due to my replacing the bulbs.  I switched back to the incandescent bulbs, and the problem vanished.

I then did a little research and learned that this is a pretty common complaint with LED bulbs and garage door remotes.  I've since managed a work-around to get LED lighting, but the problem got me thinking - and back to the title of this post: "Why do LED bulbs create radio frequency noise?".


Zenith Console, Model 10-S-464

I really should stop doing this.