EMRFD Message Archive 13710

Message Date From Subject
13710 2017-03-14 21:13:04 RodWall1234@Gmail... Re: [emrfd] headphones
Hi all.

I remember having one ex army head phone. It had a rocking amateur inside. Think you just connect another head phone of the same type to it via a long wire. It didn't need a power supply. Think they were used to communicate between a gunner on a war ship and the bridge. On my crystal set with a one transistor amplifier it was loud. Almost like a speaker.

Roderick Wall, vk3yc.

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