From junk, I've made a neat looking l-match for an end-fed half-wave antenna. In the centre, there is a capacitor made of copper foil tape on either side of a piece of 0.6mm thick PET that I cut to fit inside the pill bottle. I expect it'll tolerate about 20W from the transmitter as long as it's matching.
#amateurradio #hamradio

Made a somewhat usable bandpass filter for the 30m band mostly using spare parts. It has about 10db of insertion loss (I should have wound the transformer windings atop one another instead of side-by-side). I seem to be able to compensate for that with my sdr's gain, at least. I've got it centred on the qrss area. #amateurradio #QRSS

Having some initial success with the (tr)uSDX I just built! #truSDX #hamradio #amateurradio
Plenty more testing to do with it before I transmit, but I am pleased to have it running without smoke.