Over the years I have built many accessories for my stations. Here are some of the notables
SPC Transmatch from an article by W1FB in 1986
Link-coupled transmatch from a design by W1SE from 1985
160 meter controller used on my 160 meter inverted-L antenna. Heath-Kit SA-2550 motor-driven 500pf capacitor, Alpha-Delta Arc-Plug arrestor, Balun Designs Maxi-choke balun and Array-Solutions bleeder inductor. Built in 1994
N5BOC Duplex DMR Hotspot using a 3.5" Nextion screen
Other hotspot's I built and a portable DMR go-box
Heath-Kit SA-2550 controller. This was an e-bay find without the control box. I built one and sold the unit for a nice profit. Built in 2012
Six-position antenna switch from a design by KO4NR - Not yet completed in this picture
160 meter receiving loop from a design by W1FB from 1974
Matching circuitry for the 160 meter receiving loop