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    Old Radio coils and air-variable capacitors?

    Thanks to my very understanding spouse, who is also an excellent Craigslist searcher, I have 3 nice tuning caps, and a handful of old radio coils, which I intend to repurpose. Photos attached. 1. Is there a way I can identify or measure the coils to see which use they're for, either the bands...
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    How to safely disassemble old tube radios?

    I have two 30s- / 40s-era tube radios to disassemble for parts which will be used in other radio projects. Can anyone advise how to proceed in making sure that the circuit contains no stored power? Thank you
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    OK if Antenna or Ground wires are made from soldered-together lengths of wire?

    would a run of wire for antenna or ground be any less effective if it were made from lengths of wire soldered together, as opposed to one continuous length of unsoldered wire? something from high school physics about waves changing their behavior as they travel from one medium to another...
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    Improving reception ON a mountain?

    Hello; Just got a Tecsun PL990 the other day. Reception is about 1/2 meh. I haven’t yet tried going outside to escape the house’s RFI, as another poster here says he does. Is it something about the mountain I’m on and its terrain..surrounded by trees (containing Q-killing water) that prevents...
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