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    Hostboard Member sanhanul's Avatar
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    Has any one seen this diaphragm?

    I got again 604b but found it has equipped with a diaphragm that I never seen before.
    Can any one tell what is this?
    I has No of G5031 and no other No and it looks newly made.



    20160506_054313_resized.jpg20160506_054342_resized.jpg

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    Has any one seen this diaphragm?


    Old Guy's Avatar
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    Re: Has any one seen this diaphragm?

    Chinese IMHO
    Your neighbors called. They like your music.

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    Senior Hostboard Member bowtie427ss's Avatar
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    Re: Has any one seen this diaphragm?

    I've never seen an import phragm with the molded "pillars" for the terminal screws, or lead in conductors that go through the hub in the exact way that traditional Altecs did.

    All of the imported phragms i've seen sandwich the lead-ins between the diaphragm material and the hub like late model Altecs and GPAs.

    I think the L1 and worn slotted screws are genuine.

    Did clever little fingers rebuild a cheap import phragm onto an old hub?

    I know there are people out there that use the old hubs for something.

    Just my .02....
    Last edited by bowtie427ss; May 5th, 2016 at 07:52 PM.
    Not all vegetables make good leaders.

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    Senior Hostboard Member mah's Avatar
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    Re: Has any one seen this diaphragm?

    Opinion is only as valid as its verifiable supporting evidence.

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    Senior Hostboard Member magnarc's Avatar
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    Re: Has any one seen this diaphragm?

    It, or parts of it are early. The slot screws as opposed to phillips head. The aluminium coil. Might just be an early NOS?

    Early Altec stuff didn't always do part numbers well, and if its from a 604B, well thats 60+ years ago.

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    Has any one seen this diaphragm?


    Old Guy's Avatar
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    Re: Has any one seen this diaphragm?

    It didn't look old.Wonder if it's been in a box and recently put in?
    Your neighbors called. They like your music.

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