The Creekside Bobtail: Part 2

The 40M Bobtail will be perfectly aimed for Bouvet Island Elevating the antenna 10′ offers a lower takeoff angle and makes it easier to install hanging from 2 trees that can support the height It just so happens that I have two trees where I could get the Bobtail up off the ground about 10′. Switching to all wire elements changes the geometry a…

Collins 180S-1 Antenna Tuner(s)

The unit on the left has a nice mod where the fellow added a directional coupler, meter, switches and an SO-239 connector to turn it more like a “normal” antenna tuner, but IMHO – its front face has the weirdest interface for an antenna tuner Having the antenna connectors on the front is bizarre, EXCEPT for my use – which is to set this…

Back to the Future

I have returned my station back to its “pre – 3Y0I” glory. I’m glad the team avoided that nasty giant cyclone, and wish them luck in the future. I’m very much looking forward to getting the Collins KWS-1 back now – I can devote all of my ham hobby time on my new love – “hollow state” and vintage ham gear. Using vintage microphones…

40/20M Phased Vertical Array and Collins 180S-1 Schematic

February 1955 QST Article – “A Steerable Array for 7 and 14 Mc.” – highly recommended I’m very excited about this article, because the width of the array and having two of the most productive bands – DX and Domestic – is very appealing. It is short enough that it could easily be “hidden” on just about any lot, and it offers good “band…

Collins 180S-1 Watt Meter Mod

Collins 180S-1 tuner with Directional Wattmeter Ed, AC6CX sent me a PDF copy of the 180S-1 manual, and so now I know what the fellow who did the mod to my tuner did – he built a Collins directional coupler and wattmeter into the tuner. The switches are no doubt to switch in the different readings of the meter reflected and forward power. One…

Collins 180S-1 Antenna Tuner Repair

The Collins 180S-1 Antenna Tuner is awesome. This is a “Winged Emblem” model where a previous owner added a watt-meter, and he did a very good job. He also added switches so you can switch it as a pi or an L circuit, which is a great mood. When it arrived, the front two ceramic standoffs of the roller inductor were broken. Obviously, the…