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G'day all, it's a bit hard to recall now as it was many (yes) years ago, but as I vaguely recall, it was like a short whip antenna and its 'length' slug tuned its coil.
It did work ok as I recall. I thought it was all fascinating back then...'no batteries' (which it was and still is). Regards, Felix (vk4fuq) aka catman.
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