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Panchenima OP t1_ixvylpf wrote

This headphones were from my grandfather who worked as manager on a port, so i think it was used in a marine setting, they're too hard to drive since the sound comes from a nickel plated metal circle, the frequency response is quite tight but surprisingly clear for voice communication performing quite well 100 years ago on a radio communications station.

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Muhmmdmahdii t1_ixwi2ku wrote

How can you even power it up? This shit is beyond endgame dude!

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2E26 t1_ixwlp81 wrote

I have a pair of headphones like these. They have coils that make a thin steel diaphragm vibrate. They were used with crystal radios and vacuum tube receivers, as they have a much higher impedance (takes much less current).

They don't sound great for music, as they were made for telephone or morse code. They don't sound bad for piano music, though.

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Panchenima OP t1_ixwpr0e wrote

Replying to 2E26 (#695,435)

Yes, i did remove the wiring some 25 years ago since the fabric was quite deteriorated and put modern ones but never get a clean result, i want to restore them in the near future with fabric sleeving wires and a TRS connector that i have and is period correct, the otiginal connector were banana plugs and the sound was mono.

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2E26 t1_ixwq5iy wrote

Replying to Panchenima (#696,083)

Interesting.

I replaced the cabling for mine but they're wired in series (I intend to use them for amateur radio). I used ethernet cable, a TRS plug, and for fabric sleeving I pulled the core out of some olive green paracord.

I've been meaning to make some kind of stylized button to clamp over the Y part but never got around to that.

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R4K45H1 t1_iy2wfqa wrote

No, but those surely are in their endgame

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