LB3HC

PA0FRI and EA6FJ has made some cool low power HF tube amps with the old and thrusty PL519. Here is a picture taken by EA6FJ. This is actually a nice amplifier that should be quite easy to build for the experienced engineer and experimenter. The benefit of using lower anode voltages is that the tank [...]

The conditions lately have been very good on 20, 17, 15 and 12 meters. I have worked a lot of new stations on the HF bands above 40 lately. Finally the nice sound of a wide open high band that I remember from last time the SSN stayed above 100 is here again. The SSN [...]