Results 1 to 4 of 4

Thread: 2234/2235 Voice Coil Former Length??

  1. #1
    Senior Member GordonW's Avatar
    Join Date
    May 2003
    Location
    Marietta/Moultrie GA USA
    Posts
    1,455

    2234/2235 Voice Coil Former Length??

    Hey, I need someone to do a little measurement, to settle a discussion here.

    Anyone who has a loose 2234 or 2235 kit (new or used), PLEASE take a ruler or tape measure, and measure the HEIGHT of the voice coil former (along the travel), from the top (in front of the cone) to the bottom (at the very back of the windings, toward where the backplate goes). If the coil was sitting on a table, flat, what I need is the height that it sits above the table, in essence.

    I'm pretty sure it should be about 1.150" (between 1 1/8" and 1 3/16"), but there someone here that seems to insist it should be 1 3/8". AFAIK, a 1 3/8" coil wouldl not fit under the correct dustcap (which is about 4 1/8" diameter)... it'll have to stick out too high to the front of the cone. Basically, I think that someone's got a 2240H voice coil (for the 18") here, rather than a 2235H voice coil, in essence...

    Thanks to anyone that can help...

    Regards,
    Gordon.

  2. #2
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    Hi

    I can do this for you since I have an unused 2235 kit sitting here.

    If the coil was sitting on a table, flat, what I need is the height that it sits above the table, in essence.


    - this 1.5 yr old kit has a former height that is very close to, if not exactly 1.25" .

    - a good 1/8" of the voice coil former sits above the "glueline" that is defined by where the paper cone meets and is glued to the kapton (like) voice-coil former. This top "ridge" will effect what size dustcap will clear the VC-former.

    - bottom of spider ( the gluing surface ) is @ 7/8" above the last coil winding .


    <> Earl K

  3. #3
    Senior Member GordonW's Avatar
    Join Date
    May 2003
    Location
    Marietta/Moultrie GA USA
    Posts
    1,455
    Cool, so it sounds like a 1.150" VC height would be about dead on. I thought so! Minus about 3/32 of that 1/8" "overhang" of the coil out of the front of the cone... sounds about ideal.

    Thought that was how it looked, when I was trial-fitting here...

    BTW: What diameter dustcap are they sending with the kits now, with that longer (1.25") former? Is it still 4 1/8" or is it like 4 3/8" or so (4.406")?

    Thanks a bunch!

    Regards,
    Gordon.

  4. #4
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    BTW: What diameter dustcap are they sending with the kits now, with that longer (1.25") former? Is it still 4 1/8" or is it like 4 3/8" or so (4.406")?
    None of the above ,,,,

    The dust-cap is 4 1/4" ( right on the measurement )

    Though , remember, this is Canada, I'm quite convinced that we get a lot of JBL "hand-me downs" sent up here .

    This 4.25" size matches the dustcap size found on my le14a and le10a(s) but is smaller than the dustcaps on my le14h or ME150h woofers .

    <. Earl K

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. voice coil of 2425 in everest
    By delahais in forum Lansing Product Technical Help
    Replies: 3
    Last Post: 11-25-2004, 07:57 AM
  2. Voice coil dynamic operating temperatures
    By Charley Rummel in forum Lansing Product General Information
    Replies: 1
    Last Post: 09-02-2004, 08:56 AM
  3. 2420 voice coil DC resistance?
    By dougzilla in forum Lansing Product Technical Help
    Replies: 12
    Last Post: 05-08-2004, 09:45 PM
  4. How to Build a Sub1500
    By Don McRitchie in forum Lansing Product General Information
    Replies: 17
    Last Post: 03-05-2004, 04:49 PM
  5. 3 voice coil woofer
    By thevott in forum General Audio Discussion
    Replies: 4
    Last Post: 10-12-2003, 09:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •