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<blockquote data-quote="Vipersan" data-source="post: 853064" data-attributes="member: 325666"><p>Beans were for eating G..and the tins ..well ..no recycling back then so binned em...lol</p><p>Another off beat comms system we used extensively ..and not at all private was TTG ..or through the ground ..</p><p>A powerful 15W valve amp with the speaker replaced by 2 park railing style probes driven into the ground about 1 to2 yards apart ..</p><p>Then a portable amplifier with metal knitting needles for probes on the input ..</p><p>This would be taken anything up to half a mile away ..and the needles pushed into the ground with the same orientation as the transmitter.</p><p>rotate through degrees ..nada ..parallel ...audio through the ground transmission amazingly clear.</p><p>Kids eh...!! they'll try anything.</p><p>I believe something similar was tried during WW2 across the channel or so I read ..on a much larger scale.</p><p>And to some extent was effective ..but being unreliable came to nowt.</p><p>cheers</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 853064, member: 325666"] Beans were for eating G..and the tins ..well ..no recycling back then so binned em...lol Another off beat comms system we used extensively ..and not at all private was TTG ..or through the ground .. A powerful 15W valve amp with the speaker replaced by 2 park railing style probes driven into the ground about 1 to2 yards apart .. Then a portable amplifier with metal knitting needles for probes on the input .. This would be taken anything up to half a mile away ..and the needles pushed into the ground with the same orientation as the transmitter. rotate through degrees ..nada ..parallel ...audio through the ground transmission amazingly clear. Kids eh...!! they'll try anything. I believe something similar was tried during WW2 across the channel or so I read ..on a much larger scale. And to some extent was effective ..but being unreliable came to nowt. cheers VS [/QUOTE]
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