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  1. Replies
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    Take that kit to a qualified reconer and ask him...

    Take that kit to a qualified reconer and ask him for his opinion.

    :)
  2. Hi Phil, I have a pair of old 2410's ( the pro...

    Hi Phil,

    I have a pair of old 2410's ( the pro equivalent to the le175 ) needing new foams in the back-caps ( I have the same bad foam in every ferrite magnet 2425/6/7 I own > plus a pair of old...
  3. @Phil, Is the gap of the bad driver free of...

    @Phil,

    Is the gap of the bad driver free of rust ? ( rust will act to lower the effective BL of the coil/magnet assembly )

    In your pics, one driver looks to have suffered more rust damage.

    :)
  4. Replies
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    Hi Rob, Your friend will need something like...

    Hi Rob,


    Your friend will need something like the following ( the 8-ohm variable LPad has about 10db of attenuation dialed in );

    91026

    R3+R4 together, represent the variable 8 ohm LPad.
    ...
  5. You might get some good build ideas by reading...

    You might get some good build ideas by reading through "GDM's" thread over at Audio Karma.

    Altec-606-Inspired-Build
    ...
  6. Hmm, Sorry to sound a bit harsh here , but...

    Hmm,

    Sorry to sound a bit harsh here , but since you've twice proven yourself to be all thumbs in the handling of your driver during repair attempts;

    ( IMHO ), You should either pack up the...
  7. To answer your first question; I would (...

    To answer your first question;

    I would ( excluding the 414z ) make a version of the Model 19 using the 808-8b + 511b horn ( with the 2404h tweeter rolling in naturally around 10K by just using a...
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    91022 91023 91024 :)

    91022
    91023
    91024

    :)
  9. A tiny bit of reading//research for you The Altec...

    A tiny bit of reading//research for you The Altec "4343"

    I wouldn't bother mixing the light coned 414z with the standard 416-8z ( light cone ).

    For a woofer ( in a 4-way such as this ) one (...
  10. I believe that red and black wiring you have (...

    I believe that red and black wiring you have ( inside the back-cap ) is original to your 802-8G

    I'm guessing that the green + brown predated that model.

    I have an 802-8T with red and black...
  11. I know that Altec used ( for many decades ) one (...

    I know that Altec used ( for many decades ) one ( or 2 ) multi-tap resistors to create ad-hoc L-Pads (sometimes using the same rotary-switching method as shown in your pics ).
    ...
  12. It's best ( at this point ) to phone them and ask...

    It's best ( at this point ) to phone them and ask them just what internal wiring is needed for your driver.

    +1 405-789-0221

    :)
  13. The pictured diaphragm is too far gone to ever...

    The pictured diaphragm is too far gone to ever repair ( just toss it ). It looks like a vacuum sucked it forward into the phase-plug ).

    The older Altec drivers used green + brown wires ( changing...
  14. If you haven't already tossed it ( or further...

    If you haven't already tossed it ( or further damaged it with rough handling ) I would recommend holding onto that particular diaphragm for possible resale.

    I'm assuming what you have is the...
  15. Thread: Jbl glue

    by Earl K
    Replies
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    No clue on the actual brand used by JBL but this...

    No clue on the actual brand used by JBL but this is the genre;

    Hot-Melt Adhesive ( Hot-Glue )


    :)
  16. You'll need to take the bad driver off of the...

    You'll need to take the bad driver off of the horn.

    A visual inspection is now in order ( of the diaphragm ).

    Remove the back-cap of the driver and then post a pic of the diaphragm ( you might...
  17. Swap the "bad" horn/driver combo over to the...

    Swap the "bad" horn/driver combo over to the opposite cabinet having the "good" crossover ( to see if the problem follows that horn-driver ).

    :)
  18. Derek. Research the ( discontinued ) Synthesis...

    Derek.

    Research the ( discontinued ) Synthesis 3S3 subwoofer. It's passive and uses the well regarded le120h (12" ) woofer that's found in the L7 .
    ...
  19. Speaking of M&K subwoofers, the M&K "Volkswoofer"...

    Speaking of M&K subwoofers, the M&K "Volkswoofer" has quite consistently garnered decent reviews for it's musicality ( which I assume means it faithfully tracks the music and is not just a bloated...
  20. Thread: Forum Outage

    by Earl K
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    The restoration of the Photo Gallery functions is...

    The restoration of the Photo Gallery functions is only partially complete at this time ( from what I see ).

    :)
  21. Thread: Forum Outage

    by Earl K
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    I notice now that the link to the Photo Gallery...

    I notice now that the link to the Photo Gallery is broken ( for me at least ).


    :)
  22. Replies
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    I thought you might like this pictoral-collage (...

    I thought you might like this pictoral-collage ( copied and Google-translated ) from a french forum called ( AudioVintage ).

    90839

    :)
  23. Replies
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    LHF member "sebackman" has intimate knowledge...

    LHF member "sebackman" has intimate knowledge about your question ( re; name + diaphragm impedance ).

    I believe the replacement diaphragm is now NLA and also, was of unique design.

    Can't you...
  24. Ian, That inferred assumption that I'm not...

    Ian,

    That inferred assumption that I'm not working from real measurement data and advanced software is pretty off-base.

    I am using good software and respectable//repeatable files

    Granted I'm...
  25. Actually, it's the S4700 and the way it...

    Actually, it's the S4700 and the way it implements of the 2216nd that you ought to be copying for your lowpass ( IMO ).

    After a bunch of research I would suggest that RobH3606s lowpass for his...
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