Turning the crank powers up the ringer location you wish at the sound powered phone station you wish to 

Sent from my iPhone

On Sep 26, 2023, at 20:10, Nick England <navy.radio@gmail.com> wrote:

FWIW, more about sound-powered phones, intercoms, etc can be found at

https://www.navy-radio.com/manuals/ic.htm

On Tue, Sep 26, 2023 at 2:29 PM Nick England <navy.radio@gmail.com> wrote:

Thanks to Hue W7HUE, I have posted a document covering shipboard damage control communications (probably WW2). In case you've wondered how sound-powered phones are used, this makes interesting reading. Even if if you haven't wondered that, it makes interesting reading. 15 pages, typewritten.

https://www.navy-radio.com/manuals/ic-damage-control.pdf

 

Nick England K4NYW
www.navy-radio.com

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