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  1. #1
    Senior Hostboard Member mah's Avatar
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    The Phase Plugs

    You can ignore the math.

    Figures 18, 19 and 20 are interesting.

    Design is for 11-slit radial plug.

    Read the conclusion.

    http://www.nutshellhifi.com/library/...ngerine_PP.pdf
    Last edited by mah; April 22nd, 2017 at 02:41 AM.
    Opinion is only as valid as its verifiable supporting evidence.

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    Senior Hostboard Member bowtie427ss's Avatar
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    Re: The Phase Plugs

    It's the same conclusion many of us have drawn over the years. The Tangerine Phase plug was as much or more about cutting manufacturing costs than improving performance.

    What i find most interesting is that it is all referenced to an 11 slit design when the actual production versions had 13 slits. Why?

    GPA phase plugs have 11 slits.
    Not all vegetables make good leaders.

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    Senior Hostboard Member Earl K's Avatar
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    Re: The Phase Plugs

    Actual production used 11 slits ( I have 5 units like this ) / while Altec's printed copy has always mentioned 13 slits .

    3

    GPA's modified tangerines use 9 slits .


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    Senior Hostboard Member mah's Avatar
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    Re: The Phase Plugs

    I looked at lots of pics on the www. and found that small format drivers have 11 slot plugs and large format drivers have 13 slot plugs. I don't believe that all of the small format drivers pictured were Great Plains products.

    altec tangerine phase plug pics - Google Search


    altec tangerine phase plug pics - Google Search



    A bit of history: Tangerine prototypes and other stuff for sale
    Last edited by mah; April 22nd, 2017 at 07:53 AM.
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    Senior Hostboard Member bowtie427ss's Avatar
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    Re: The Phase Plugs

    Dammitt! Somebody stole 2 slits from each of my tangerines!

    I KNOW i counted 13 slits in an orange tangerine. But, it must have been in a 288 or 291 although i would probably testify to the contrary. Just goes to show that eye-witnesses are not all that reliable. Add to that the fact that my one remaining brain cell is getting stretched mighty thin these days.
    Not all vegetables make good leaders.

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    Senior Hostboard Member mah's Avatar
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    Re: The Phase Plugs

    Clifford confirmed the 11 slot plug went into the production 802s. Time to check the '9' series, maybe.

    The more, the merrier - Peavey: http://patentimages.storage.googleap...S6064745-2.png
    Opinion is only as valid as its verifiable supporting evidence.

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    Senior Hostboard Member bowtie427ss's Avatar
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    Re: The Phase Plugs

    11 slots in my model 14 902's.
    Not all vegetables make good leaders.

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