Re: Siemens ship telephone
Many people tells that when you have used sound powered phones for a while, it is easy to understand what the other end says, until then it may be a little difficult. As dave sayy, transmitter and receiver elements use to be equal, and in parallel, but I have used one with 3 wires, one common and the other 2 goes from a's receiver to b's transmitter.... The howler was connected so you got a howl in the receivers phones transmitter element.
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