LA3ZA Radio and Electronics

The useless machine or ultimate machine originates from Claude Shannon , the scientist who figured out how to find the channel capacity in...

My first beacon on 30 m, a free-running Ultimate QRSS kit (no GPS) has now been running for a full 24 hours using the Weak Signal Propaga...

Press image for magnification I like to build small electronics projects and like many others I have found the small Altoids tins to be...

Herstal pendant lamp, type 06 Some years ago I had this annoying noise that made listening for weak signals on several of the shortwave...

I visited Riga, Latvia with a youth group which we as a family were involved with in 1992, and there I stumbled upon a Soviet oscilloscope...

In 2012 bulky power transformers that work directly from the power grid at 50/60 Hz have mostly disappeared. My objective here is to moder...

I wasn't even born when this LA3ZA QSL-card was issued in 1949. This is because I am second generation LA3ZA after my father. When the...

A vertical wire antenna based on a MFJ-1904H 6.7 m (22 feet) telescopic fiberglass pole as shown here is easily tuneable for all bands fr...