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Wednesday, November 19, 2025

AWA Bruce Kelley CW QSO Party, November 2025

The 2025 Bruce Kelley Memorial CW QSO Party is now in the books. I was (for me) fairly successful with twelve QSOs, mostly in the upper midwest and northeast. I worked no stations to my west or south.

My transmitter was a Push-Pull Colpitts Oscillator  (see https://w0vlz.blogspot.com/search/label/1934%20Colpitts ) running about 6 watts out. I stayed on 40 meters where it sounded the best. Even on 40, though, you can hear some flutter in my signal. This is from the wind slightly blowing my antenna around. This in turn changes the load on the colpitts oscillator transmitter changing the transmit frequency slightly.

Here is a link to a recording of my signal  https://youtu.be/esTWUadIeRk


Wednesday, November 5, 2025

Bruce Kelley Memorial CW QSO Party

 In a few days this season's vintage radio events continue with the Bruce Kelley Memorial CW QSO Party. This will be two weekends using 1929 transmitters on the air. See https://www.antiquewireless.org/homepage/bk-qso-party-details/ for details.

The last few days I've been testing my Push-Pull Colpitts transmitter on 40 and 20. It sounds pretty good running 5-6 watts out. I'll probably be on 40 in the evenings and 20 in the afternoons.

 

More construction information here:

https://w0vlz.blogspot.com/search/label/1930%20TNT

 https://w0vlz.blogspot.com/search/label/1928%20Hartley

 https://w0vlz.blogspot.com/search/label/1934%20Colpitts 

73,

Niel - W0VLZ