The Cantenna is simply a non-inductive resistor dunked in oil. I think the resistor was rated for 200 watts in air.
It had a few resistors, a diode and a capacitor to give a DC output measurement via a voltmeter.
No coils involved.
Gary
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On May 17, 2025, at 4:21?PM, Jahman N5ASE via groups.io <jah@...> wrote:
I built the Heatkit SB-104A half a century ago!? Some of the most fun I ever had!
Also built the SWR meter, the crystal 2m VHF FM xcvr and the 25W VHF amp, also for FM.
I learned so much building these Heathkits and I was so propud of what I was able to build.
I'm interested in replicating the Cantenna.? How is the coil wound?? How much power can it take?
73 de Andrew/N5ASE.
In the 70¡¯s, I built my entire station¡Heathkit.??First it was??the HW-101, the HA-10 Warrior amp.??Warrior was just too big and didn¡¯t match the 102, so I built the SB-200.??Not done yet¡.wanted more power, so?
You guessed it, the SB-220 was next.??Had to have the?Cantenna, so it was added to my kit building!??Welp, no AM in the 102, so the SB301/401 was next.??(The world of split frequency operations was soon discovered and quickly loved that capability!
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Outside of the ham equipment, I built lots of Heath kits¡.Color?³Ù±¹¡¯²õ, multi meters, O-scopes, automobile scopes and tuners, weather station, digi clocks¡Don¡¯t remember all else, but there was a lot of stuff,??I loved building.
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I still have some of the Heath stuff, but with the exception of my?cantenna, all the Heath amateur??gear is gone.??L
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The automobile scope still works but no longer really needed with today¡¯s cars.??I still have my weather station and digi clocks as well my?multimeters?(VOMs and VTOMs)?
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Yeah..hindsight?is a bear¡.
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Wish I still had all that ham stuff. They worked beautifully!
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From:?[email protected]?[mailto:[email protected]]?On Behalf Of?C Mark?Cring?- N8COO via?
Subject:?Re: [DRAKE-RADIO] Thoughts on Dayton Hamfest
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you know, it¡¯s easy to say I never should¡¯ve got rid of that rig, whatever that rig was, but back when, I always had to trade or sell stuff to be able to afford newer equipment,.
