What is this reproducer?

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Mormon S
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What is this reproducer?

Post by Mormon S »

Saw this at an antique mall. This reproducer is on a swan phonograph, and can play laterally and vertically cut records. Can anyone tell me what the piece in the middle is for?

(I added the picture again, for whatever reason it didnt upload the first time)

Thanks
Martin
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20190426_140224.jpg
Last edited by Mormon S on Fri Apr 26, 2019 4:16 pm, edited 1 time in total.

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Django
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Re: What is this reproducer?

Post by Django »

We need a little bit of a hint. I think that you forgot your picture.

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startgroove
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Re: What is this reproducer?

Post by startgroove »

That is an attenuator, used to dampen the volume.

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phonolamplighter
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Re: What is this reproducer?

Post by phonolamplighter »

Hi Martin,

The small thumb screw will move the inner ring closer and further from the diaphragm. This causes the tone to be adjustable(somewhat) and softens the volume as stated above.

Here are a couple of pictures to demonstrate the movement of that inner ring.
Attachments
Swan soundbox, loud.JPG
Swan soundbox, soft.JPG
Swan soundbox, adjustable ring on diaphragm.JPG
Ed and Nancy

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Benjamin_L
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Re: What is this reproducer?

Post by Benjamin_L »

Here's an advertisement from the July 15th, 1922 addition of the Talking Machine world.

(The one at the antique mall looks like something got stuck in the needle bar.)
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Jewel.png
Last edited by Benjamin_L on Sat Apr 27, 2019 11:32 pm, edited 1 time in total.

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travisgreyfox
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Re: What is this reproducer?

Post by travisgreyfox »

Neat ad Benjamin. I love how it says, "The Jewel Mute controls the volume just like the human throat." My samsung blueray 4k surround sound controls volume too, but not sure if its "like the the human throat" :lol:

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