National NC-100 Receiver
As received, this National NC-100 was in a very sorry state. Several knobs were missing, as were most of the valves (and those that were there were not the correct ones). The set had...
Daily Archive: July 21, 2018
LoTW application appeared for Android and iOS.
The application called “MyLoTW” and works with ARRL LoTW service on Android and iOS platforms. The mobile application allows you to: Look through all the QSOs loaded into LoTW. Add new callsigns to your...
Simple modification of the HM-36 Microphone from ICOM
The Icom HM-36 microphone is a simple electret mic. But many owners notice that some microphones sounds bad. What reason? There are two different types of ICOM microphone HM-36 (exclude chinese fake): First type...
Dipole antenna design. Some theory and construction.
A dipole antenna is a symmetrical antenna, consisting of two quarter wave elements, connected to each of the two conductors (inner and outer) of a coaxial cable. You will need a center insulator for...
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