| Een filmpje van een poosje geleden. Ik had hem nog op mijn harddisk staan. Hier is geschiedenis geschreven. De eerste kaart van onze Melkweg is hier gemaakt! This text will be replaced
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| Vanochtend was Govert Schilling bij Goedemorgen Nederland. Hij legt uit hoe Lofar werkt. This text will be replaced
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This weekend there was the CQ-M contest. And that is A nice opportunity to test my half wave end feed vertical antenna for the 20m band. With only 5 Watt I made a lot of CW contacts. Most of them went very smooth. The vertical outperformed the 2 x 18m dipole on most of the QSO's.
The big advantage of A half wave vertical is that it doesn't need A lot of ground radials as the quarter wave vertical does need. |
Just got my two 100mA retro-look panel meters! I will use them for A one valve CW transmitter. The valve is an ECL82 / 6BM8. A triode plus pentode. The transmitter will work on two bands. 80m and 40m. Used crystals 3560 kHz and 7030 kHz. Power out should be somewhere between 5 and 8 Watts.
Hope to start working on this project soon! I only need some not to large variable air capacitors. From an old tube radio? |
Twee filmpjes gevonden op youtube. De eerste is van de BBC over morse code. Het tweede filmpje over een morse klas uit 1941.
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