At the Breezeshooters Hamfest in Butler, PA, I setup a 1930s style station for an on-air demonstration. We made a few contacts on 40M CW, as far as NC. The transmitter was only producing about 30W output (work in progress). There were also some issues with the receiver which were brought on by the trip to the Hamfest. It was “rattled” out of alignment, causing one of the IF tubes to oscillate (manifesting as a loud squealing when the gain control was high enough) and developed an intermittent “raspiness” (later found to be a bad BFO tube). Overall, it was a fun time and nice to see old friends and meet many new friends.
This year I decided to relax a bit and fire up some of my 1930s replica homebrew gear. My plans to build a new exciter were sidelined, so I used whatever was available, including part of what used to be the 2016 Field Day transmitter for 40M and my 160M 203A transmitter for 80M and 160M.
For a receiver, I used my recently finished 1934 “De Luxe” Superhet, built according to an article in May 1934 QST.
On-air Reception Test. COMPLETE.
After about three-weeks of construction, the time had finally arrived to test the 1934 QST De Luxe Superhet Receiver on the air! With power supplied, tubes lit, dial indicator lamps lit, and coils installed, I plugged in the louspeaker and connected the antenna lead (active vertical in backyard) and began tuning around the 160M band to find that “first” on-air signal… Continue reading 1934 Superhet Receiver #10 – FINAL